# Soal IPA Gerak Lurus

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By: Krisantus Ardy Barata, S.Pd

• 1.

### Sebuah sepeda dapat menempuh jarak 9 km dalam waktu 30 menit. Kecepatan tetap sepeda tersebut adalah ….

• A.

5 m/s

• B.

8 m/s

• C.

10 m/s

• D.

12 m/s

A. 5 m/s
Explanation
The correct answer is 5 m/s because to calculate speed, we divide the distance traveled by the time taken. In this case, the bike traveled 9 km in 30 minutes, which is equal to 0.5 hours. Therefore, the speed of the bike is 9 km divided by 0.5 hours, which equals 18 km/h. To convert this to m/s, we multiply by 1000/3600, which gives us 5 m/s.

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• 2.

### Sebuah sepeda motor bergerak sejauh 20 km dalam waktu 15 menit. Kecepatan rata-rata mobil tersebut adalah ....

• A.

50 km/jam

• B.

70 km/jam

• C.

80 km/jam

• D.

100 km/jam

C. 80 km/jam
Explanation
The distance traveled by the motorcycle is given as 20 km, and the time taken is given as 15 minutes. In order to find the average speed, we need to convert the time to hours. Since there are 60 minutes in an hour, 15 minutes is equal to 15/60 = 0.25 hours. To find the average speed, we divide the distance by the time: 20 km / 0.25 hours = 80 km/h. Therefore, the correct answer is 80 km/h.

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• 3.

### Which one do you like?

• A.

GLB

• B.

GLBB dipercepat

• C.

GLBB diperlambat

• D.

Gerak bebas

C. GLBB diperlambat
Explanation
The correct answer is "GLBB diperlambat." This suggests that the speaker prefers the option of "GLBB diperlambat" out of the given choices. It implies that the speaker likes the idea of decelerating or slowing down the motion described by the concept of GLBB (Gerak Lurus Beraturan Berubah Beraturan), which refers to an object moving in a straight line with a constant acceleration.

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• 4.

### Nilai percepatan mobil yang sedang direm adalah ….

• A.

Nol

• B.

Tidak tentu

• C.

Positif

• D.

Negatif

D. Negatif
Explanation
The correct answer is "negatif" because when a car is being braked, the acceleration is in the opposite direction of its motion. This means that the acceleration is negative, indicating a decrease in speed.

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• 5.

### Which one do you like?

• A.

Beraturan

• B.

Tidak beraturan

• C.

Beraturan diperlambat

• D.

Beraturan dipercepat

C. Beraturan diperlambat
Explanation
The correct answer is "beraturan diperlambat". This suggests that the person prefers something that is orderly or organized but at a slower pace. They may enjoy activities or situations that have a sense of structure and predictability, but they prefer them to be slowed down or not rushed.

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• 6.

### Jenis gerak benda yang dilemparkan ke atas secara vertikal dan akhirnya jatuh ke tanah adalah ….

• A.

GLBB diperlambat kemudian menjadi GLBB dipercepat

• B.

• C.

GLBB dipercepat kemudian menjadi GLBB diperlambat

• D.

A. GLBB diperlambat kemudian menjadi GLBB dipercepat
Explanation
The given correct answer is "GLBB diperlambat kemudian menjadi GLBB dipercepat". This means that the object initially undergoes a deceleration (diperlambat) and then changes to an acceleration (dipercepat). This is consistent with the motion of an object thrown vertically upwards and eventually falling back down due to the force of gravity. Initially, the object slows down as it moves against gravity, reaches its highest point, and then starts to accelerate downwards due to the force of gravity.

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• 7.

### Perhatikan pernyataan berikut! (1) Bola yang dilempar vertikal ke atas mengalami GLBB dipercepat (2) Matahari terbit dari timur dan tenggelam di barat adalah gerak semu (3) Buah kelapa yang jatuh dari pohonnya mengalami GLBB dipercepat Pernyataan yang benar adalah ….

• A.

(1) dan (2)

• B.

(1), (2), dan (3)

• C.

(1) dan (3)

• D.

(2) dan (3)

D. (2) dan (3)
Explanation
The correct answer is (2) and (3).

Statement (2) is correct because the rising and setting of the sun is an apparent or apparent motion caused by the rotation of the Earth. It is not the actual motion of the sun.

Statement (3) is correct because when a coconut falls from a tree, it experiences accelerated motion due to the force of gravity acting on it. This can be described by the equations of motion for an object undergoing uniformly accelerated motion (GLBB).

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• 8.

### Herman berlari dengan kecepatan 2 m/s. Jarak yang ditempuh Herman selama 3,5 menit adalah….?

• A.

420 m

• B.

120 m

• C.

320 m

• D.

220 m

A. 420 m
Explanation
Herman berlari dengan kecepatan 2 m/s. Untuk mencari jarak yang ditempuh, kita dapat menggunakan rumus jarak = kecepatan x waktu. Dalam kasus ini, kecepatan Herman adalah 2 m/s dan waktu yang ditempuh adalah 3,5 menit. Karena waktu dalam rumus harus dalam satuan detik, kita perlu mengubah 3,5 menit menjadi 210 detik (1 menit = 60 detik). Kemudian, kita dapat mengalikan kecepatan 2 m/s dengan waktu 210 detik, yang menghasilkan 420 meter. Jadi, jarak yang ditempuh Herman selama 3,5 menit adalah 420 m.

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• 9.

### Mobil bergerak dengan kecepatan tetap 108 km/jam. Hitung perpindahan mobil selama 15 detik!

• A.

150 m

• B.

250 m

• C.

300 m

• D.

450 m

D. 450 m
Explanation
The question asks for the displacement of a car moving at a constant speed of 108 km/h for 15 seconds. To find the displacement, we can use the formula: displacement = velocity x time. Converting the velocity to meters per second (108 km/h = 30 m/s), and plugging in the values, we get: displacement = 30 m/s x 15 s = 450 m. Therefore, the correct answer is 450 m.

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• 10.

### Jika Andi mengendarai sepeda motor yang mempunyai kecepatan tetap 36 km/jam selama 10 sekon. Maka jarak yang ditempuh oleh Andi adalah….?

• A.

100 m

• B.

160 m

• C.

180 m

• D.

360 m

A. 100 m
Explanation
Andi mengendarai sepeda motor dengan kecepatan tetap 36 km/jam selama 10 detik. Untuk mencari jarak yang ditempuh, kita dapat menggunakan rumus jarak = kecepatan x waktu. Mengubah kecepatan menjadi meter/detik, kita dapat mengalikan 36 km/jam dengan faktor konversi 1000 m/1 km dan 1 jam/3600 detik. Sehingga kecepatan menjadi 10 m/detik. Kemudian, kita kalikan kecepatan dengan waktu, yaitu 10 detik. Dengan melakukan perhitungan tersebut, kita dapatkan jarak yang ditempuh oleh Andi adalah 100 meter.

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• Mar 22, 2023
Quiz Edited by
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• Aug 04, 2020
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