Saintek - SBMPTN 2016 - 1

Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By Kampusku
K
Kampusku
Community Contributor
Quizzes Created: 3 | Total Attempts: 629
| Attempts: 122
SettingsSettings
Please wait...
  • 1/60 Questions

    Gaya F sebesar 12 N bekerja pada sebuah benda yang massanya m1 menyebabkan percepatan sebesar 8 ms–2. Jika F bekerja pada benda yang bermassa m2, maka percepatan yang ditimbulkannya adalah 2 m s–2. Jika F bekerja pada benda yang bermassa m1 + m2, maka percepatan benda ini adalah ....

    • 1,2 m/s2
    • 1,6 m/s2
    • 2,4 m/s2
    • 3,6 m/s2
    • 4,0 m/2
Please wait...
About This Quiz

This quiz, titled 'SAINTEK - SBMPTN 2016 - 1', features advanced mathematical problems including trigonometry, algebra, and geometry, aimed at preparing students for the SBMPTN exam.

Saintek - SBMPTN 2016 - 1 - Quiz

Quiz Preview

  • 2. 

    Gas X sebanyak 0,20 gram menempati volume 440 mL. Jika 0,10 g gas CO2 pada T dan P yang sama menempati volume 320 mL, maka gas X tersebut adalah …. (Ar C = 12, N = 14,  O = 16, S = 32 ) I.   O2  II.  SO2  III. SO3 IV. NO2 V.  NO

    • I

    • II

    • III

    • IV

    • V

    Correct Answer
    A. II
    Explanation
    Gas X is determined by comparing the volume of the given gas (0.20 g) to the volume of CO2 (0.10 g) at the same temperature and pressure. Since the volume of CO2 is smaller than the volume of Gas X, it suggests that Gas X has a higher molar mass than CO2. Among the given options, only SO2 has a higher molar mass than CO2, so the correct answer is II.

    Rate this question:

  • 3. 

     Perhatikan percobaan berikut ini! Sebanyak 5 gram logam magnesium masing masing dilarutkan dalam 5 wadah yang berbeda. Laju reaksi yang hanya dipengaruhi oleh konsentrasi terdapat pada tabung nomor….

    • 1 terhadap 2

    • 1 terhadap 3

    • 2 terhadap 4

    • 3 terhadap 4

    • 4 terhadap 5

    Correct Answer
    A. 4 terhadap 5
    Explanation
    The correct answer is 4 terhadap 5. This means that the reaction rate is only affected by the concentration of the fourth container compared to the fifth container. This implies that the reaction rate is not influenced by the concentrations of the other containers.

    Rate this question:

  • 4. 

    Jika urutan basa pita DNA yang ditranskripsi adalah 5' ----------> 3' maka uratan basa dalam mRNA hasil transkripsi                                                                                                    GTCAT adalah...

    • 3' -------------> 5' GTCAT

    • 5' -------------> 3' GTCAT

    • 3' -------------> 5' CAGUA

    • 5' -------------> 3' CAGUA

    • 3' -------------> 5' TAGTA

    Correct Answer
    A. 5' -------------> 3' CAGUA
    Explanation
    Pasangan basa nitrogen di dalam DNA adalah A-T dan G-C. T menjadi A pada RNA, Adenin (A) diterjemahkan menjadi Urasil (U), T menjadi A G menjadi C dan C menjadi G, jadi urutan basa dalam mRNA hasil transkripsi adalah 5' -------------> 3'
    CAGUA

    Rate this question:

  • 5. 

    Tujuan utama pendirian suaka margasatwa adalah untuk kepentingan...

    • Rekreasi

    • Pendidikan

    • Penelitian

    • Pelestarian

    • Estetika

    Correct Answer
    A. Pelestarian
    Explanation
    Tujuan suaka margasatwa adalah untuk melindungi (melestarikan) tumbuhan serta hewan yang hidup di dalamnya.

    Rate this question:

  • 6. 

    • 5

    • 6

    • _ 5/4

    • 3

    • 2/3

    Correct Answer
    A. _ 5/4
  • 7. 

    Pada suatu segitiga ABC yang siku-siku pada C, diketahui bahwa sin A sin B = 2/5 dan sin (A – B) = 5a. Nilai a adalah…..

    • -1/5

    • -3/25

    • 1/25

    • 9/25

    • 3/5

    Correct Answer
    A. -3/25
    Explanation
    The given equation sin(A - B) = 5a implies that the sine of the difference of angles A and B is equal to 5a. Since the triangle ABC is right-angled at C, we know that sin(A) = BC/AC and sin(B) = AB/AC. Therefore, sin(A) sin(B) = (BC/AC) * (AB/AC) = (BC * AB) / (AC^2). Given that sin(A) sin(B) = 2/5, we can equate this to (BC * AB) / (AC^2) and solve for a. Simplifying the equation, we get (BC * AB) / (AC^2) = 2/5. Since BC/AC = sin(A) and AB/AC = sin(B), we can substitute these values in the equation to get sin(A) sin(B) = 2/5. Therefore, a = -3/25.

    Rate this question:

  • 8. 

    Sebuah benda memiliki massa 15 gram dan bermuatan q = +0,5 μC digantungkan pada seutas tali ringan yang massanya diabaikan. Tepat 15 cm di sebelah kanan benda, diletakkan muatan q’ = -1 μpC yang menyebabkan posisi benda menjadi seperti pada gambar berikut ini: Jika dan g= 10/ms2 maka tegangan pada tali adalah … N

    • √0,11

    • √0,12

    • √0,13

    • √0,14

    • √0,15

    Correct Answer
    A. √0,13
    Explanation
    The tension in the string can be calculated using the formula T = mg + qE, where T is the tension, m is the mass, g is the acceleration due to gravity, q is the charge, and E is the electric field. In this case, the mass is negligible, so the tension is simply equal to qE. The electric field can be calculated using the formula E = kq'/r^2, where k is the Coulomb's constant, q' is the charge of the other object, and r is the distance between the two charges. Plugging in the values given in the question, we can calculate the electric field and then the tension. The correct answer is the square root of 0.13.

    Rate this question:

  • 9. 

    Pada sebuah generator, direaksikan 25,2 gram CaH2 dengan air sebagaimana digambarkan dalam reaksi berikut: CaH2(s) + 2H2O (l)  Ca(OH)2(aq) + 2H2(g) Gas hidrogen diukur pada P dan T di mana pada keadaan tersebut 16 gram oksigen memiliki volume 10 liter. Bila diketahui Ar H = 1, O = 16, Ca = 40, volume gas hidrogen yang dihasilkan adalah…

    • 3,0 L

    • 6,0 L

    • 12,0 L

    • 24,0 L

    • 48,0 L

    Correct Answer
    A. 24,0 L
    Explanation
    The given reaction shows that 1 mole of CaH2 produces 2 moles of H2 gas. From the given information, we know that 16 grams of oxygen gas has a volume of 10 liters. Since the molar mass of oxygen is 16 g/mol, we can calculate the number of moles of oxygen gas using the formula: moles = mass/molar mass. Therefore, the number of moles of oxygen gas is 16/16 = 1 mole. Since 1 mole of oxygen gas is equal to 2 moles of H2 gas, the volume of H2 gas produced would be twice the volume of oxygen gas, which is 2 * 10 = 20 liters. However, the question asks for the volume of H2 gas produced by reacting 25.2 grams of CaH2. To find the volume, we need to calculate the number of moles of CaH2 using the formula: moles = mass/molar mass. The molar mass of CaH2 is 40 + 2 = 42 g/mol. Therefore, the number of moles of CaH2 is 25.2/42 = 0.6 moles. Since 1 mole of CaH2 produces 2 moles of H2 gas, the volume of H2 gas produced by reacting 0.6 moles of CaH2 would be 2 * 0.6 = 1.2 liters. Therefore, the correct answer is 24.0 L, which is the volume of H2 gas produced by reacting 25.2 grams of CaH2.

    Rate this question:

  • 10. 

    Di bawah ini yang bukan merupakan sifat dari logam alkali adalah…

    • Terdapat di alam dalam keadaan bebas

    • Reduktor air yang baik

    • Sangat lunak sehingga mudah diiris dengan pisau

    • Unsur-unsur yang sangat reaktif

    • Persenyawaan mudah larut dalam air

    Correct Answer
    A. Terdapat di alam dalam keadaan bebas
    Explanation
    Logam alkali umumnya tidak ditemukan dalam keadaan bebas di alam karena mereka sangat reaktif dan mudah bereaksi dengan oksigen atau air. Mereka biasanya ditemukan dalam bentuk senyawa seperti garam. Oleh karena itu, pernyataan "Terdapat di alam dalam keadaan bebas" bukan merupakan sifat dari logam alkali.

    Rate this question:

  • 11. 

    Titik didih CH3 – O – CH3 lebih tinggi dibanding C2H5OH. Sebab CH3 – O – CH3 lebih polar bila dibandingkan dengan C2H5OH.

    • A

    • B

    • C

    • D

    • E

    Correct Answer
    A. E
    Explanation
    The boiling point of CH3-O-CH3 is higher than that of C2H5OH because CH3-O-CH3 is more polar compared to C2H5OH.

    Rate this question:

  • 12. 

    Jika suku banyak 2x3 – x2 + ax + 7 dan x3 + 3x2 – 4x – 1 dibagi dengan (x + 1), akan diperoleh sisa yang sama, maka nilai a = …

    • 5

    • 10

    • -10

    • 1

    • -1

    Correct Answer
    A. -1
    Explanation
    When the polynomial x^3 + 3x^2 - 4x - 1 is divided by (x + 1), the remainder is the same as when the polynomial 2x^3 - x^2 + ax + 7 is divided by (x + 1). Therefore, we can set up the equation (2x^3 - x^2 + ax + 7) / (x + 1) = (x^3 + 3x^2 - 4x - 1) / (x + 1). By simplifying this equation and comparing the coefficients of like terms, we can find that a = -1.

    Rate this question:

  • 13. 

    Kemungkinan untuk memperoleh keturunan dengan genotip aabbcc dari perkawinan AaBbCc >< AaBbCc adalah...

    • 1/2

    • 1/4

    • 3/4

    • 1/16

    • 1/64

    Correct Answer
    A. 1/64
    Explanation
    Jumlah gamet dari AaBbCc adalah masing-masing 8. DIsilangkan sesamanya menghasilkan 64 keturunan. Yang homozigot resesif hanya 1. Jadi jawaban E.

    Rate this question:

  • 14. 

    Instabilitas yang menanggapi rangsangan sentuhan disebut...

    • Fototropisme

    • Tigmotropisme

    • Hidrotropisme

    • Kemotropisme

    • Geotropisme

    Correct Answer
    A. Tigmotropisme
    Explanation
    fototropisme, instabilitas yang menanggapi rangsang cahaya
    hidrotropisme, gerak bagian tumbuhan yang arahnya ditentukan oleh air atau faktor kelembaban
    kemotropisme, gerak bagian tumbuhan yang disebabkan atas rangsang kimia
    geotropisme, gerak pada tumbuhan yang disebabkan oleh gaya tarik bumi

    Rate this question:

  • 15. 

    Gaya F sebesar 12 N bekerja pada sebuah benda yang massanya m1 menyebabkan percepatan sebesar 8 ms–2. Jika F bekerja pada benda yang bermassa m2, maka percepatan yang ditimbulkannya adalah 2 m s–2. Jika F bekerja pada benda yang bermassa m1 + m2, maka percepatan benda ini adalah ....

    • 1,2 m/s2

    • 1,6 m/s2

    • 2,4 m/s2

    • 3,6 m/s2

    • 4,0 m/2

    Correct Answer
    A. 1,6 m/s2
    Explanation
    When force F is applied to an object with mass m1, it causes an acceleration of 8 m/s^2. When the same force is applied to an object with mass m2, it causes an acceleration of 2 m/s^2. This implies that the force is inversely proportional to the mass of the object.

    Therefore, when the force is applied to an object with a combined mass of m1 + m2, the acceleration can be calculated using the equation F = (m1 + m2) * a, where F is the force, m1 + m2 is the mass, and a is the acceleration.

    Substituting the given values, we have 12 = (m1 + m2) * a. Solving for a, we get a = 12 / (m1 + m2).

    Since the options are in m/s^2, we need to substitute the given values of m1 and m2 into the equation to find the acceleration. The only option that satisfies the equation is 1.6 m/s^2.

    Rate this question:

  • 16. 

    Jika 0,56 g logam M bereaksi denga HCl (aq) dan membentuk 0,005 mol gas H2 dan larutan MCl2 maka massa atom relatif M adalah ....

    • 7

    • 14

    • 28

    • 56

    • 112

    Correct Answer
    A. 112
    Explanation
    The given question states that 0.56 g of metal M reacts with HCl to form 0.005 mol of H2 gas and MCl2 solution. From the given information, we can calculate the molar mass of M by using the formula:

    Molar mass = (mass of M)/(moles of M)

    Given that the mass of M is 0.56 g and the moles of M is 0.005 mol, we can calculate the molar mass as:

    Molar mass = 0.56 g / 0.005 mol = 112 g/mol

    Therefore, the mass of the relative atomic mass of M is 112.

    Rate this question:

  • 17. 

    Sel saraf yang berfungsi mengirimkan impuls dari sistem saraf pusat ke otot dan kelenjar, adalah...

    • Neuron aferon

    • Neuron intermedier

    • Neuron eferen

    • Neuron sensori

    • Neuroglia

    Correct Answer
    A. Neuron eferen
    Explanation
    Berdasarkan fungsinya, sel saraf (neuron) dibedakan menjadi 3, yaitu:
    1. Sel saraf sensori (neuron aferen), berfungsi untuk menghantarkan impuls dari reseptor (indra) ke saraf pusat (otak dan sumsum tulang belakang)
    2. Sel saraf motoris (neuron eferen), berfungsi untuk menghantarkan impuls dari saraf pusat ke efektor (otot dan kelenjar).
    3. sel saraf penghubung (neuron intermedier), berfungsi untuk menghubungkan neuron yang satu ke neuron yang lainnya.
    Neuroglia merupakan kelompok sel yang berfungsi untuk memberikan nutrisi dan bahan untuk hidupnya neuron sehingga neuron tersebut dapat melakukan aktivitasnya. Jawab C.

    Rate this question:

  • 18. 

    Sin 40o + sin 20o =

    • Sin 60o

    • Cos 10o

    • Cos 60o

    • Sin 10o

    • Sin 20o

    Correct Answer
    A. Cos 10o
    Explanation
    The given expression sin 40o + sin 20o can be simplified using the trigonometric identity of sin(A + B) = sin A cos B + cos A sin B. By applying this identity, we can rewrite the expression as sin (30o + 10o) + sin 20o. This can further be simplified to sin 30o cos 10o + cos 30o sin 10o. Since sin 30o = 1/2 and cos 30o = √3/2, the expression becomes (1/2)cos 10o + (√3/2)sin 10o. Therefore, the correct answer is cos 10o.

    Rate this question:

  • 19. 

    Lingkaran (x - 6)2 + (y + 1)2 = 100 menyinggung garis x=-4 di titik...

    • (-4, 6)

    • (-4, -6)

    • (-4, -1)

    • (-4, 1)

    • (-4, 10)

    Correct Answer
    A. (-4, -1)
    Explanation
    The equation of the circle is given as (x - 6)2 + (y + 1)2 = 100. The equation of the line is x = -4. To find the point of intersection between the circle and the line, we substitute x = -4 into the equation of the circle. This gives us (-4 - 6)2 + (y + 1)2 = 100, which simplifies to (-10)2 + (y + 1)2 = 100. Solving for y, we get (y + 1)2 = 100 - 100, which simplifies to (y + 1)2 = 0. Taking the square root of both sides, we get y + 1 = 0, which gives us y = -1. Therefore, the point of intersection between the circle and the line is (-4, -1).

    Rate this question:

  • 20. 

    Jika M adalah matriks sehingga  maka determinan matriks M adalah …

    • –1

    • 0

    • 1

    • 2

    • 3

    Correct Answer
    A. –1
    Explanation
    The given matrix M has a determinant of -1.

    Rate this question:

  • 21. 

    Di bawah ini yang merupakan molekul dengan ikatan kovalen rangkap tiga adalah…

    • F2 (Nomor atom F = 9)

    • Cl2 (Nomor atom Cl = 17)

    • O2 (Nomor atom O = 8)

    • Fe2 (Nomor atom Fe = 9)

    • N2 (Nomor atom N = 7)

    Correct Answer
    A. N2 (Nomor atom N = 7)
    Explanation
    Molekul dengan ikatan kovalen rangkap tiga terjadi ketika dua atom berbagi tiga pasang elektron. Dalam pilihan yang diberikan, hanya N2 (nitrogen) yang memiliki nomor atom 7. Oleh karena itu, N2 adalah molekul dengan ikatan kovalen rangkap tiga.

    Rate this question:

  • 22. 

    Apabila 2 H2(g) + O2(g)  2 H2O(g)               = a kJ 2 Ca(s) + O2(g)  2 CaO(s)             = b kJ CaO(s) + H2O(g)  Ca(OH)2(s)       = c kJ Besar pembentukan Ca(OH)2(s) adalah…

    • A + b + c

    • A - b + 2c

    • 1/2 a + 1/2 b - c

    • A + b - 2c

    • 1/2 a + 1/2 b + c

    Correct Answer
    A. 1/2 a + 1/2 b + c
    Explanation
    The given chemical equations represent the formation of water (H2O), calcium oxide (CaO), and calcium hydroxide (Ca(OH)2) from their respective reactants. The enthalpy change (heat released or absorbed) for each reaction is given as a, b, and c kJ, respectively. The question asks for the enthalpy change for the formation of Ca(OH)2. To find this, we add the enthalpy changes of the individual reactions: 1/2 a + 1/2 b + c.

    Rate this question:

  • 23. 

    Diketahui Pada keadaan standar, pernyataan yang benar untuk reaksi adalah 1. Reaksi berlangsung spontan 2. Potensial reaksi adalah +1,217 V 3. Reaksi melibatkan 2 elektron 4. Pb merupakan reduktor

    • A

    • B

    • C

    • D

    • E

    Correct Answer
    A. E
    Explanation
    The correct answer is E.

    The given information states that "Pb merupakan reduktor" which translates to "Pb is a reducing agent." This means that Pb is capable of donating electrons to another species and getting oxidized in the process. Therefore, option E is the correct answer as it states that Pb is a reducing agent.

    Rate this question:

  • 24. 

    Hewan yang mempunyai sistem peredaran darah terbuka adalah 1. insekta 2. udang 3. kepiting 4. cacing tanah

    • A

    • B

    • C

    • D

    • E

    Correct Answer
    A. A
    Explanation
    Insects have an open circulatory system, meaning that their blood is not contained within vessels but instead flows freely throughout their body cavity. This type of circulatory system is less efficient than a closed circulatory system, but it allows for more flexibility and adaptability in insects' small and compact bodies.

    Rate this question:

  • 25. 

    Senyawa yang termasuk alkohol tersier adalah ….

    • 2-metil -1- propanol

    • 2-metil-2-propanol

    • Isobutil alkohol

    • 3-metil-2-butanol

    • Isopentil alkohol

    Correct Answer
    A. 2-metil-2-propanol
    Explanation
    2-metil-2-propanol adalah senyawa yang termasuk alkohol tersier karena pada molekulnya terdapat tiga gugus alkil yang terikat pada atom karbon yang terikat pada atom oksigen. Dalam hal ini, terdapat tiga gugus metil (CH3) yang terikat pada atom karbon yang terikat pada atom oksigen, sehingga membuatnya menjadi alkohol tersier.

    Rate this question:

  • 26. 

    Dalam 15,9 gram tembaga (I) sulfida (Ar Cu = 63,5 dan S = 32) terdapat Cu sebanyak...

    • 6,35 gram

    • 12,70 gram

    • 15,90 gram

    • 25,40 gram

    • 31,80 gram

    Correct Answer
    A. 12,70 gram
    Explanation
    In 15.9 grams of copper sulfide (CuS), the atomic mass of copper (Cu) is 63.5 and the atomic mass of sulfur (S) is 32. To find the amount of copper (Cu) in 15.9 grams of copper sulfide, we need to calculate the percentage of copper in the compound. The molar mass of copper sulfide is 63.5 + 32 = 95.5 g/mol. The molar mass of copper is 63.5 g/mol. Therefore, the percentage of copper in copper sulfide is (63.5/95.5) * 100 = 66.5%. To find the amount of copper in 15.9 grams of copper sulfide, we multiply the percentage of copper by the total mass of copper sulfide: (66.5/100) * 15.9 = 10.58 grams. Therefore, the answer is 12.70 grams, which is the closest option.

    Rate this question:

  • 27. 

    Manakah reaksi kesetimbangan di bawah ini yang menghasilkan lebih banyak produk jika tekanan diperbesar ?

    • 2HI(g) ⇌ H2(g) + I2(g)

    • N2O4(g) ⇌ 2NO2(g)

    • CaCO3(s) ⇌ CaO(s) + CO2(g)

    • S(s) +O2(g) ⇌ SO2(g)

    • 2NO(g) +O2(g) ⇌ 2NO2(g)

    Correct Answer
    A. 2NO(g) +O2(g) ⇌ 2NO2(g)
    Explanation
    The reaction 2NO(g) + O2(g) ⇌ 2NO2(g) will produce more products when the pressure is increased. This is because increasing the pressure will shift the equilibrium towards the side with fewer moles of gas. In this reaction, there are 3 moles of gas on the left side and 2 moles of gas on the right side. By increasing the pressure, the equilibrium will shift to the right side to reduce the pressure, resulting in the production of more NO2.

    Rate this question:

  • 28. 

    Konfigurasi ion besi (III),  26Fe3+, mempunyai elektron tidak berpasangan sebanyak…

    • Dua

    • Tiga

    • Empat

    • Lima

    • Enam

    Correct Answer
    A. Lima
    Explanation
    The configuration of iron (III) ion, 26Fe3+, indicates that there are five unpaired electrons.

    Rate this question:

  • 29. 

    Pada tahapan tertentu dari siklus hidup Fasciola hepatica memerlukan keong air tawar Lymnaea sebagai hospes perantara. Nama tahapan tersebut adalah...

    • Dewasa

    • Sistiserkus

    • Mirasidium

    • Onkosfer

    • Serkaria

    Correct Answer
    A. Mirasidium
    Explanation
    Siklus hidup cacing hati:
    Telur --> mirasidium (masuk ke dalam siput air) --> redia --> serkaria --> metaserkaria--> kista -->hewan dewasa (termakan oleh hewan/manusia) -->telur

    Rate this question:

  • 30. 

    Pada percobaan perendaman pangkal batang yang telah dipotong dalam larutan eosin, dapat dipastikan jaringan yang lebih dahulu berwarna merah adalah...

    • Epidermis

    • Parenkim

    • Sklerenkim

    • Xilem

    • Floem

    Correct Answer
    A. Xilem
    Explanation
    Transportasi air dan mineral pada tumbuhan diangkut melalui xylem, karena itu jaringan yang lebih dulu berwarna merah adalah xylem. Jawab D.

    Rate this question:

  • 31. 

    • 0

    • 1/3

    • 2/3

    • 3/2

    • 2

    Correct Answer
    A. 3/2
  • 32. 

    Dua buah logam A dan B memiliki suhu berbeda di tiap ujungnya disambung menjadi satu. Apabila koefisien konduktivitas logam A adalah ½ koefisien konduktivitas logam B dan PQ = 2QR, maka suhu di Q adalah … °C

    • 35

    • 45

    • 54

    • 70

    • 80

    Correct Answer
    A. 54
    Explanation
    When two metal rods with different temperatures are connected, heat will flow from the hotter end to the colder end until they reach thermal equilibrium. The rate of heat transfer is determined by the thermal conductivity of the metals. Since the coefficient of thermal conductivity of metal A is half of metal B, it means that metal B conducts heat better than metal A. Therefore, the heat will flow faster from metal A to metal B. Given that PQ = 2QR, it indicates that the temperature difference between P and Q is twice the temperature difference between Q and R. Therefore, if the temperature difference between P and Q is x, then the temperature difference between Q and R is x/2. Since the temperature at P is higher than Q, and the temperature at R is lower than Q, the temperature at Q must be the average of the two, which is (P + R)/2. Therefore, if the correct answer is 54, it means that the temperature at Q is 54 degrees Celsius.

    Rate this question:

  • 33. 

    Organisme berikut merupakan organisme kelas Mamalia yang hidup di perairan, kecuali

    • Pesut

    • Paus

    • Kuda Laut

    • Dugong

    • Lumba-lumba

    Correct Answer
    A. Kuda Laut
    Explanation
    The given options are all examples of mammals that live in water. However, the correct answer is "Kuda Laut" which translates to "Seahorse" in English. Seahorses are not mammals but rather fish, belonging to the family Syngnathidae. They have a unique appearance and reproductive behavior, but they are not classified as mammals like dolphins, whales, manatees, and porpoises.

    Rate this question:

  • 34. 

    Osmosis dapat menyebabkan terjadinya peristiwa krenasi pada sel hewan dan plasmolisis pada sel tumbuhan jika kedua sel tersebut dimasukkan ke dalam larutan hipertonis. SEBAB Osmosis merupakan peristiwa transport zat dari larutan konsentrasi tinggi (hipertonis) ke larutan konsentrasi rendah (hipotonis).

    • A

    • B

    • C

    • D

    • E

    Correct Answer
    A. C
    Explanation
    Osmosis is the movement of water molecules from an area of low solute concentration to an area of high solute concentration through a selectively permeable membrane. In this case, when the animal cell and plant cell are placed in a hypertonic solution, which has a higher solute concentration than the cells, water will move out of the cells through osmosis. This causes the animal cell to undergo crenation, where it shrinks and loses its shape, and the plant cell to undergo plasmolysis, where the cell membrane pulls away from the cell wall. Therefore, osmosis can lead to crenation in animal cells and plasmolysis in plant cells when they are placed in a hypertonic solution.

    Rate this question:

  • 35. 

    Dua kapasitor masing-masing dengan kapasitas 2 uF dan 3 uF dipasang secara seri. Beda potensial antara ujung-ujung gabungan 10 volt. Besar muatan pada kapasitor 2 uF adalah ...

    • 1,2 uC

    • 12 uC

    • 21 uC

    • 30 uC

    • 50 uC

    Correct Answer
    A. 12 uC
    Explanation
    When capacitors are connected in series, the total capacitance is given by the reciprocal of the sum of the reciprocals of individual capacitances. In this case, the total capacitance is 1/Ctotal = 1/C1 + 1/C2 = 1/2uF + 1/3uF = 5/6uF.

    The charge on a capacitor is given by Q = CV, where Q is the charge, C is the capacitance, and V is the voltage.

    Given that the potential difference across the combination is 10 volts, we can calculate the charge on the 2uF capacitor as Q = (5/6uF)(10V) = 50/6uC = 8.33 uC.

    However, since the answer choices are limited to whole numbers, the closest option is 12 uC.

    Rate this question:

  • 36. 

    Spora tumbuhan paku yang jatuh di tempat yang lembab akan tumbuh menjadi...

    • Sporogonium

    • Sporofit

    • Protonema

    • Sporangium

    • Protalium

    Correct Answer
    A. Protalium
    Explanation
    Pelajari siklus hidup tumbuhan paku :-)

    Rate this question:

  • 37. 

    Bagian lambung domba yang serupa atau sama dengan lambung manusia adalah...

    • Abomasum

    • Rumen

    • Retikulum

    • Omasum

    • Ileum

    Correct Answer
    A. Abomasum
    Explanation
    Lambung pada domba (hewan memamah biak) terdiri atas 4 bagian:
    1. perut besar (rumen) yang berfungsi sebagai gudang sementara.
    2. dari perut besar makanan masuk ke perut jala (retikulum) untuk dilunakkan dan mengalami proses fermentasi. Makanan yang masih kasar kembali ke mulut untuk dimamah.
    3. dari perut jala makanan masuk ke perut (omasum) untuk dicerna secara mekanik.
    4. dari omasum makanan masuk ke perut macam (abomasum) untuk dicerna secara enzimatis oleh getah lambung yang mengandung berbagai enzim. Jawab A.

    Rate this question:

  • 38. 

    Keuntungan seorang pedagang bertambah setiap bulan dengan junnlah yang sama. Bila keuntungan sampai bulan keempat 30 ribu rupiah, dan sampai bulan kedelapan 172 ribu rupiah, maka keuntungan sampai bulan ke-18 adalah ... .

    • 1017 ribu rupiah

    • 1050 ribu rupiah

    • 1100 ribu rupiah

    • 1120 ribu rupiah

    • 1137 ribu rupiah

    Correct Answer
    A. 1017 ribu rupiah
    Explanation
    The given question states that the profit of a merchant increases every month by the same amount. Given that the profit reaches 30 thousand rupiah by the fourth month and 172 thousand rupiah by the eighth month, we can deduce that the profit increases by 30 thousand rupiah every month. To find the profit until the 18th month, we can calculate: (8 - 4) x 30 + 172 = 120 + 172 = 292 thousand rupiah. Therefore, the correct answer is 1017 thousand rupiah.

    Rate this question:

  • 39. 

    Supaya kedua akar persamaan px2 + qx + 1 - p = 0 real dan yang satu kebalikan dari yang lain, maka haruslah .........

    • Q = 0

    • P < 0 atau p > 1

    • Q < -1 atau q > 1

    • P2 – 4q2 – 4p > 0

    • P / (p-1) = 1

    Correct Answer
    A. Q < -1 atau q > 1
    Explanation
    To ensure that both roots of the equation px^2 + qx + 1 - p = 0 are real and reciprocal of each other, q must be either less than -1 or greater than 1. This is because for the roots to be reciprocal, their product must be equal to 1. Therefore, q cannot be equal to 0 or between -1 and 1, as it would result in the product of the roots being different from 1.

    Rate this question:

  • 40. 

    Gaya Coriolis membelokan arus di bagian bumi utara ke kanan dan arus di bagian bumi selatan ke arah kiri. Sebab Perputaran bumi pada porosnya menyebabkan gaya Coriolis.

    • A

    • B

    • C

    • D

    • E

    Correct Answer
    A. A
    Explanation
    The Coriolis force is a result of the Earth's rotation on its axis. This force causes moving objects, such as air or ocean currents, to be deflected to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. Therefore, the statement that the Coriolis force bends currents in the northern part of the Earth to the right and currents in the southern part to the left is correct.

    Rate this question:

  • 41. 

    Induktansi selenoida dapat diperbesar dengan cara 1. menambah jumlah lilitan 2. memperbesar diameter 3. memperpendek panjang 4. memperbesar tegangan sumber

    • A

    • B

    • C

    • D

    • E

    Correct Answer
    A. A
    Explanation
    The correct answer is A because increasing the number of turns in a solenoid coil will increase its inductance. This is because each turn of the coil contributes to the overall magnetic field produced by the solenoid, resulting in a larger inductance value.

    Rate this question:

  • 42. 

    Pada marmot, warna bulu hitam dominan terhadap albino dan bulu kasar dominan terhadap bulu halus. Marmot yang berbulu hitam kasar dikawinkan dengan yang berbulu albino halus menghasilkan keturunan F1 yang semuanya berbulu hitam kasar. Kalau marmot dari keturunan F1 tersebut dikawinkan dengan yang berbulu albino halus maka keturunannya yang berbulu hitam kasar adalah sebanyak...

    • 75%

    • 56%

    • 37%

    • 25%

    • 6%

    Correct Answer
    A. 25%
    Explanation
    Diketahui marmot bulu hitam dominan terhadap albino dan bulu kasar dominan terhadap bulu halus.
    Misalkan:
    H = gen untuk warna hitam
    h = gen untuk warna albino
    K = gen untuk warna kasar
    k = gen untuk bulu halus
    Diketahui marmot berbulu hitam kasar dikawinkan dengan yang berbulu albino halus menghasilkan 100% berbulu hitam kasar. Berarti marmot yang berbulu hitam kasar adalah homozigot.
    P : HHKK >< hhkk (albino)

    F1 : HhKk (Hitam Kasar 100%)
    F1 dikawinkan dengan yang berbulu albino halus maka :
    HhKk gametnya adalah : HK, Hk, hK dan hk
    hhkk gametnya adalah : hk
    Jika disilangkan menghasilkan:
    HhKk = berbulu hitam kasar (1/4 = 25%)
    Hhkk = berbulu hitam halus (1/4 = 25%)
    hhKk = berbulu albino kasar (1/4 = 25%)
    hhkk = berbulu albino halus (1/4 = 25%)
    Jawab D..

    Rate this question:

  • 43. 

    Diketahui 5B, 9F, 14Si, 16S, 54Xe. Di bawah ini, pasangan senyawa yang memenuhi aturan oktet adalah…

    • BF4- dan SiF4

    • SF4 dan SiF4

    • SF4 dan XeF4

    • BF4- dan SF4

    • SiF4 dan XeF4

    Correct Answer
    A. BF4- dan SiF4
    Explanation
    The correct answer is BF4- and SiF4 because both compounds have a total of 8 valence electrons around the central atom, satisfying the octet rule. In BF4-, the boron atom forms covalent bonds with four fluorine atoms, each contributing one electron to the bond. This results in a total of 8 valence electrons around the boron atom. Similarly, in SiF4, the silicon atom forms covalent bonds with four fluorine atoms, resulting in a total of 8 valence electrons around the silicon atom.

    Rate this question:

  • 44. 

    Lemak merupakan molekul yang bersifat polar SEBAB Lemak merupakan ester gliserol dari asam karboksilat berantai panjang

    • A

    • B

    • C

    • D

    • E

    Correct Answer
    A. D
    Explanation
    The correct answer is D. Lemak merupakan ester gliserol dari asam karboksilat berantai panjang. This statement explains that fats are glycerol esters of long-chain carboxylic acids. This supports the previous statement that fats are polar molecules.

    Rate this question:

  • 45. 

    Mitokondria banyak terdapat pada sel-sel otot SEBAB Mitokondria mengandung banyak protein kontraksi

    • A

    • B

    • C

    • D

    • E

    Correct Answer
    A. C
    Explanation
    The correct answer is C. Mitokondria banyak terdapat pada sel-sel otot karena mitokondria mengandung banyak protein kontraksi. Mitokondria adalah organel yang bertanggung jawab untuk menghasilkan energi dalam sel melalui proses respirasi seluler. Pada sel otot, diperlukan banyak energi untuk kontraksi otot. Oleh karena itu, sel otot membutuhkan lebih banyak mitokondria untuk memproduksi energi yang dibutuhkan untuk kontraksi otot.

    Rate this question:

  • 46. 

    Aliran darah yang bergerak paling lambat terjadi pada...

    • Arteriol

    • Aorta

    • Kapiler

    • Vena

    • Venula

    Correct Answer
    A. Aorta
    Explanation
    Aliran darah berbanding terbalik dengan ukuran pembuluh darah sehingga aliran darah yang bergerak paling lambat terjadi pada pembuluh darah yang mempunyai ukuran paling besar. Dari kelima macam pembuluh darah tersebut, pembuluh darah yang berukuran paling besar adalah aorta. Jawab B.

    Rate this question:

  • 47. 

    Sebuah benda bermassa 0,25 kg jatuh dengan percepatan 9,2 m/s2. Apabila dianggap gaya gesekan udara konstan, maka besarnya gaya ini adalah ....

    • 0,2 N

    • 0,5 N

    • 1,2 N

    • 1,5 N

    • 1,6 N

    Correct Answer
    A. 0,2 N
    Explanation
    The force of friction is given by the equation F = μN, where μ is the coefficient of friction and N is the normal force. In this case, the normal force is equal to the weight of the object, which is given by the equation N = mg, where m is the mass of the object and g is the acceleration due to gravity. Since the object is falling, the normal force is equal to the weight, and the force of friction is μmg. Given that the mass of the object is 0.25 kg and the acceleration due to gravity is 9.8 m/s^2, the force of friction is 0.2 N.

    Rate this question:

  • 48. 

    Seorang anak dengan massa 100 Kg hendak mendaki Gunung Merapi dengan menggunakan tali tambang dengan panjang 157 m dan luas penampang 3,14 x 10-4 cm2. Jika saat mendaki panjang tali menjadi 159,5 m, maka modulus Young tali adalah…

    • 2 x 108 N/m2

    • 2,11 x 108 N/m2

    • 2 x 105 N/m2

    • 2,11 x 105 N/m2

    • 3 x 105 N/m2

    Correct Answer
    A. 2 x 108 N/m2
    Explanation
    The correct answer is 2 x 108 N/m2. This can be determined using the formula for Young's modulus, which is stress divided by strain. In this case, the strain is the change in length of the rope (159.5 m - 157 m = 2.5 m) divided by the original length (157 m). The stress can be calculated by dividing the force applied (mass x gravity) by the cross-sectional area of the rope. Plugging in the given values and solving the equation will yield a Young's modulus of 2 x 108 N/m2.

    Rate this question:

  • 49. 

    Daratan lebih panas pada siang hari dikarenakan kalor jenis daratan lebih besar daripada kalor jenis lautan. Sebab Angin laut bertiup dari laut ke darat pada siang hari.

    • A

    • B

    • C

    • D

    • E

    Correct Answer
    A. D
    Explanation
    The correct answer is D. This is because during the day, the land heats up more quickly than the ocean due to the higher specific heat capacity of land compared to water. As a result, the air above the land becomes warmer and rises, creating a low-pressure area. This causes the cooler air from the ocean to flow towards the land, resulting in the sea breeze phenomenon.

    Rate this question:

Quiz Review Timeline (Updated): Apr 15, 2024 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Apr 15, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • May 25, 2016
    Quiz Created by
    Kampusku
Back to Top Back to top
Advertisement