Latihan Unbk Online IPA 2

When in danger, some lizards, including the gecko, have the ability to detach their tails as a defense mechanism. By detaching their tails, they can distract their enemies and give themselves a chance to escape. The detached tail will continue to wiggle and move, attracting the attention of the predator while the lizard makes its getaway. This behavior is a survival strategy that allows the lizard to protect itself and increase its chances of survival.

The correct answer is "menipisnya sumber air bersih" because the unchecked population growth puts a strain on natural resources, including water. As the population increases, the demand for clean water also increases, leading to the depletion of freshwater sources. This can result in water scarcity and a lack of access to clean and safe drinking water for communities.

The correct answer suggests that in the given images, the motion of the falling coconut (gambar I) is described as uniformly accelerated motion (GLBB) and the motion of the vertically thrown ball by a student (gambar II) is described as uniformly decelerated motion (GLBB diperlambat). This means that the coconut is experiencing an increase in velocity over time while the ball is experiencing a decrease in velocity over time.

The correct answer is "menutupnya daun putri malu akibat iritabilitas" because the picture shows the leaves of the sensitive plant (putri malu) closing, which is a response to a stimulus. This response is known as thigmonasty, where the leaves close when they are touched or disturbed. This is a form of irritability or sensitivity in plants.

The correct answer is 1 and 2. The image shows different parts of the kidney. The part responsible for filtering the blood is called the renal corpuscle, which consists of the glomerulus (number 1) and the Bowman's capsule (number 2). These structures work together to filter waste products and excess water from the blood, forming urine. Therefore, options 1 and 2 are the correct choices as they represent the parts involved in the filtration of blood in the kidney.

The correct answer is "sendi engsel." This is because the image shows a hinge joint, which is a type of joint that allows movement in only one plane, like a door hinge. The other options, such as ball joint, saddle joint, and pivot joint, do not match the characteristics of the joint shown in the image.

Enzim yang berfungsi mengubah protein menjadi pepton dihasilkan oleh organ yang ditunjukkan nomor 4.

Based on the given image, it can be observed that F1 and F2 are two forces acting in opposite directions. The magnitude of force F1 is 400 joule, while the magnitude of force F2 is 200 joule. Since the question asks for the total effort or the combined magnitude of the forces, we need to add the magnitudes of F1 and F2. Therefore, the correct answer is 600 joule.

The correct answer is katrol. This is because both the tool in the picture and a pulley (katrol) are examples of simple machines that use a rope or cable to lift or move objects.

The correct answer is "digosok dengan kain wol, peristiwa yang terjadi mendapat tambahan elektron, jenis muatan listrik yang ditimbulkan negatif". This is because when the plastic comb is rubbed with wool, it gains electrons from the wool, resulting in an excess of negative charges on the comb. This leads to the comb having a negative charge and being able to attract the paper bits.

The correct answer is "frekuensi bunyi yang dihasilkan kurang dari 20 Hz". This means that the frequency of the sound produced by the vibrating ruler is less than 20 Hz. Sound waves with frequencies below 20 Hz are known as infrasound and are typically not audible to humans. Therefore, the student is unable to hear the sound vibrations produced by the ruler.

The correct answer is (3) dan (4). This is because when a magnet is rubbed against an iron bar, it induces a magnetic field in the iron. The induced magnetic field will have the opposite polarity to the magnet being rubbed. In this case, when magnet L is rubbed against the iron bars, it will induce a north pole at the end of the iron bar that is closest to the north pole of magnet L, and a south pole at the end of the iron bar that is closest to the south pole of magnet L. Therefore, in scenarios (3) and (4), the poles of the iron bars align correctly with the poles of magnet L.

The given answer of 102,000 joules is correct because to melt ice into water at its melting point, we need to calculate the heat required for the phase change from solid to liquid. This can be done by multiplying the mass of the ice (300 grams) by the heat of fusion of ice (340,000 J/kg), which gives us 102,000 joules.

The correct answer is "energi gerak - energi listrik - energi cahaya + energi kalor". When the student rides the bike, the energy from their motion (energi gerak) is converted into electrical energy (energi listrik) by the dynamo. This electrical energy is then used to power the light bulb, converting it into light energy (energi cahaya). However, not all the electrical energy is converted into light energy. Some of it is lost as heat energy (energi kalor). Therefore, the correct sequence of energy conversion is from motion energy to electrical energy to light energy, with some energy being lost as heat.

The image formed by a mirror is located at a distance equal to the object's distance from the mirror. Therefore, the correct answer is 60 cm.

The correct answer is 2 and 4. According to the table, the type of stimulus for part 2 is gravity and the direction of movement is towards the center of the earth. Similarly, for part 4, the type of stimulus is touch and the direction of movement is that the leaf will close.

The given answer, "tumbuh dan berkembang," is the correct explanation for the image. The image depicts various stages of growth and development, such as the growth of plants and the development of animals. This is supported by the other options provided, which mention reproduction, needing food, and being responsive to stimuli. However, "tumbuh dan berkembang" specifically refers to the process of growing and developing, which encompasses all the other options mentioned. Therefore, it is the most comprehensive and accurate explanation for the image.

The diagram shows an object placed in front of a convex lens with a focal length and object position as shown in the picture. The distance of the formed image from the lens is 60 cm.

The correct answer is 5 à 6 à 2 à 3 à 1. This is the correct order of the reflex movement. First, the sensory nerves (5) receive stimuli from the environment through the sense organs. Then, the sensory nerves transmit the information to the central nervous system (6), which processes the information. The central nervous system then sends signals to the motor nerves (2), which control the muscles (3) to produce a reflex action. Finally, the reflex action is executed by the muscles (1).

The correct answer is inseminasi buatan. Inseminasi buatan refers to the process of artificially introducing semen from a superior male animal into the reproductive tract of a female animal to achieve successful fertilization and reproduction. In this case, the veterinarian is using the spermatozoids from a superior male cow and inserting them into the uterus of a female cow to obtain superior offspring. This technique is commonly used in animal breeding to improve the genetic quality of the offspring.

The correct answer is 25 cm³ because based on the image provided, the volume of the object is indicated by the level of liquid in the measuring container. The liquid is filled up to the 25 cm³ mark, indicating that the volume of the object is 25 cm³.

The pressure at the mouth of the fish can be calculated using the equation for hydrostatic pressure, which is given by P = ρgh, where P is the pressure, ρ is the density of the fluid, g is the acceleration due to gravity, and h is the height of the fluid column. In this case, the fluid is water and the height is the depth at which the fish is located. Since the acceleration due to gravity is 10 N/kg and the density of water is approximately 1000 kg/m3, the pressure can be calculated as P = 1000 kg/m3 * 10 N/kg * h. Therefore, the pressure at the mouth of the fish is 10,000 N/m2.

Building a botanical garden is a viable effort to conserve the species of plants depicted in the image. Botanical gardens serve as a safe space for various plant species to grow and thrive, providing them protection from threats such as deforestation, habitat destruction, and illegal harvesting. By creating a botanical garden, the plants can be preserved and their biodiversity can be maintained for future generations to appreciate and study.

The correct answer is (2), (4) dan (1), (3). This answer is correct because the tides in the ocean are caused by the gravitational pull of the moon and the sun. When the moon is at its maximum or minimum distance from a certain point on Earth, it creates a high tide. The same applies to the sun. Therefore, the tides occur when the moon is at points (2) and (4) in its orbit around the Earth, and the maximum and minimum tides occur when the moon is at points (1) and (3) respectively.

Berdasarkan tabel data kepustakaan, kita dapat melihat bahwa besi memiliki koefisien muai panjang yang lebih kecil daripada tembaga. Ketika suhu bimetal dinaikkan, logam A (besi) akan mengalami perubahan dimensi yang lebih sedikit daripada logam B (tembaga). Hal ini menyebabkan bimetal membengkok ke arah logam A.

When the mango plant with large, acidic fruits (BBmm) is crossed with a mango plant with small, sweet fruits (bbMM), the resulting F1 generation (BbMm) has large, sweet fruits. When the F1 generation is crossed with itself, the possible genotypes of the offspring are BBMM, BBMm, BbMM, BbMm, BBmm, Bbmm, bbMM, and bbMm. Out of these eight possible genotypes, six have the genotype for large, sweet fruits (BBMM, BBMm, BbMM, BbMm, bbMM, and bbMm). Therefore, the ratio of mango fruits that are large and sweet to all possible genotypes is 6/8, which simplifies to 3/4 or 9/16.

The cost of electricity usage per month can be calculated by multiplying the power consumption (in kilowatts) by the number of hours used per day by the number of days in a month, and then multiplying it by the electricity tariff per kilowatt-hour.

In this case, the power consumption can be calculated by multiplying the voltage (220 volts) by the current (0.5 amperes), which gives us 110 watts or 0.11 kilowatts.

So, the cost of electricity usage per month would be 0.11 kilowatts x 4 hours x 30 days x Rp 400,00 per kilowatt-hour = Rp 5.280,00.

The correct answer is Posisi I : 60 N/m² and posisi II : 100 N/m². The pressure exerted by an object on a surface is given by the formula pressure = force/area. In position I, the force exerted by the object is 30 Newton and the area is unknown. In position II, the force exerted by the object is unknown and the area is 100 N/m². Since the pressure increases from position I to position II, it means that the force exerted by the object must have increased while the area remained the same or decreased. Therefore, the correct answer is posisi I : 60 N/m² and posisi II : 100 N/m².

The correct answer is 2, 3, dan 4. This is because the characteristics mentioned (pupil mata menyempit, tekanan darah menurun, denyut urat nadi melambat) are all symptoms commonly associated with heroin use. These symptoms are caused by the depressant effects of the drug on the central nervous system, leading to a decrease in heart rate, blood pressure, and constriction of the pupils. The feeling of extreme happiness or euphoria mentioned in option 5 is not specific to heroin use and can be associated with the use of other drugs as well.

Based on the data shown in the pictures, it can be concluded that the person has myopia, which is a condition where the person has difficulty seeing distant objects clearly. The pictures show that the rays of light converge before reaching the retina, causing the image of distant objects to be formed in front of the retina. This is why the person needs to wear glasses with concave lenses to correct the condition. The concave lenses diverge the rays of light before they enter the eye, allowing the image to be formed on the retina, resulting in clearer vision for distant objects.

Komet memiliki ekor yang terbentuk saat komet mendekati matahari dan panasnya menguapkan es di permukaan komet. Ketika komet bergerak menjauhi matahari, tekanan radiasi matahari mendorong partikel-partikel yang menguap dari komet membentuk ekor yang panjang. Oleh karena itu, ekor komet selalu bertambah panjang saat komet bergerak menjauhi matahari.

After the switch S is closed, the current will divide between the two resistors in the circuit according to their respective resistance values. The total resistance in the circuit is 9Ω (6Ω + 3Ω). According to Ohm's Law (V = I*R), the current flowing through each resistor can be calculated by dividing the voltage across the resistor by its resistance. Since the current is divided in inverse proportion to the resistance, the current through the 6Ω resistor (I1) will be half of the current through the 3Ω resistor (I2). Therefore, the correct answer is "Kuat arus I1: 1 ampere and Kuat arus I2: 2 ampere."

The power (P) consumed by an electrical device can be calculated using the formula P = I * V, where I is the current flowing through the device and V is the voltage applied to it. In this case, the current flowing through the electric kettle is given as 400 mA (or 0.4 A). However, the voltage is not provided in the question. Without the voltage value, it is not possible to calculate the power consumed accurately. Therefore, an explanation cannot be provided as the question is incomplete.

The correct answer is 8 volt. This can be determined by observing the circuit diagram. Since the resistance in the battery is neglected, the voltmeter will measure the potential difference across the two points P and Q directly. The potential difference is the voltage, which is equal to the sum of the voltages across the two resistors connected in series. In this case, the two resistors have equal values, so the potential difference across each resistor is the same. Therefore, the potential difference between P and Q is equal to the voltage across one resistor, which is 8 volts.

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The correct answer is B1 dan S4. This means that the correct pairing of a physical quantity and its unit in the International System (SI) is B1 and S4. Unfortunately, without further information about the specific physical quantities and units represented by B1 and S4, it is not possible to provide a more detailed explanation.

Kekurangan vitamin K akan mengakibatkan fibrinogen tidak dapat membentuk fibrin. Vitamin K diperlukan dalam proses pembekuan darah untuk mengaktifkan faktor pembekuan tertentu, termasuk faktor II (protrombin) dan faktor I (fibrinogen). Fibrinogen adalah protein yang terlibat dalam proses pembentukan bekuan darah. Tanpa vitamin K yang cukup, fibrinogen tidak dapat diubah menjadi fibrin, yang merupakan jaringan padat yang membentuk bekuan darah. Oleh karena itu, kekurangan vitamin K akan menyebabkan kesulitan dalam proses pembekuan darah.

Based on the given information, the graph shows the displacement of a point in a medium as a function of time when a wave passes through the medium. The wavelength of the wave is given as 6 m. The wave speed can be calculated by dividing the wavelength by the period of the wave. However, the period is not given in the question. Therefore, an explanation cannot be generated.

Ali melakukan usaha sebesar 300 joule. Usaha dapat dihitung dengan rumus Usaha = gaya x jarak x cosinus sudut antara gaya dan jarak. Pada kasus ini, gaya yang bekerja adalah berat Ali yang dapat dihitung dengan rumus berat = massa x percepatan gravitasi. Jarak yang ditempuh Ali adalah tinggi tangga dari lantai A ke lantai B. Diketahui massa Ali adalah 60 kg dan percepatan gravitasi bumi adalah 10 m/s2. Dengan menggantikan nilai-nilai tersebut ke dalam rumus, kita dapat menghitung usaha yang dilakukan oleh Ali sebesar 300 joule.