Hukum Newton

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| By Styosuwandi

Styosuwandi

Community Contributor

Quizzes Created: 1 | Total Attempts: 2,550

Questions: 10 | Attempts: 2,550 | Updated: Mar 21, 2023

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Questions and Answers

1.

Ketika kita naik kendaraan, dianjurkan untuk memakai sabuk pengaman. Menurut fisika, hal ini sesuai dengan hukum ....
- A.
  
  Hukum I Newton
- B.
  
  Hukum II Newton
- C.
  
  Hukum III Newton
- D.
  
  Hukum Grafitasi Newton
Correct Answer
A. Hukum I Newton

Explanation
The correct answer is hukum I Newton. According to Newton's first law of motion, an object at rest tends to stay at rest, and an object in motion tends to stay in motion with the same speed and in the same direction, unless acted upon by an external force. When we are in a moving vehicle, the seatbelt helps to keep us in motion with the vehicle and prevents us from being thrown forward in the event of sudden braking or collision. Therefore, wearing a seatbelt is in accordance with Newton's first law of motion.

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2.

Penumpang mobil yang direm mendadak akan terdorong ke depan. Hal ini karena andanya hukum ....
- A.
  
  Hukum aksi reaksi
- B.
  
  Hukum kelembaman
- C.
  
  Hukum grafitasi
- D.
  
  Hukum sebab akibat
Correct Answer
B. Hukum kelembaman

Explanation
When a car suddenly brakes, the passengers inside the car will be pushed forward. This is because of the law of inertia, also known as the law of kelembaman. According to this law, an object at rest will stay at rest, and an object in motion will stay in motion with the same speed and direction, unless acted upon by an external force. In this case, the passengers in the car were in motion, and when the car suddenly stopped, their bodies wanted to keep moving forward due to their inertia.

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1
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3.

Percepatan yang dialami benda sebanding dengan besar gaya yang diterima dan berbanding terbalik dengan massa benda. Pernyataan ini sesuai dengan ....
- A.
  
  Hukum I Newton
- B.
  
  Hukum II Newton
- C.
  
  Hukum III Newton
- D.
  
  Hukum kelembaman
Correct Answer
B. Hukum II Newton

Explanation
The given statement states that acceleration is directly proportional to the magnitude of the force applied and inversely proportional to the mass of the object. This is in line with Newton's second law of motion, which states that the acceleration of an object is directly proportional to the net force applied to it and inversely proportional to its mass. Therefore, the correct answer is Newton's second law of motion.

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4.

Sebuah benda yang memiliki massa 5 kg didorong dengan gaya 10 N di tempat yang licin. Besar percepatan yang dialami benda adalah ....
- A.
  
  2 m/s2
- B.
  
  5 m/s2
- C.
  
  10 m/s2
- D.
  
  15 m/s2
Correct Answer
A. 2 m/s2

Explanation
The acceleration experienced by an object is equal to the force applied to it divided by its mass, based on Newton's second law of motion (F = ma). In this case, the object has a mass of 5 kg and is pushed with a force of 10 N. Therefore, the acceleration can be calculated as 10 N / 5 kg = 2 m/s^2.

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5.

Karena mendapat gaya 20 N benda yang terletak di lantai licin, bergerak dengan percepatan 4m/s2. Maka massa benda tersebut adalah ....
- A.
  
  20 kg
- B.
  
  16 kg
- C.
  
  8 kg
- D.
  
  5 kg
Correct Answer
D. 5 kg

Explanation
The given question states that an object is experiencing a force of 20 N and is moving with an acceleration of 4 m/s^2 on a smooth surface. We can use Newton's second law of motion, which states that force is equal to mass multiplied by acceleration (F = ma). Rearranging the equation, we can find the mass of the object by dividing the force by the acceleration (m = F/a). In this case, the force is 20 N and the acceleration is 4 m/s^2, so the mass of the object is 5 kg.

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6.

Jika sebuah benda memberikan gaya kepada benda lain, maka benda kedua kan memberikan gaya pada benda pertama sama besar dan berlawanan arah. Hal ini merupakan isi hukum ....
- A.
  
  Hukum I Newton
- B.
  
  Hukum II Newton
- C.
  
  Hukum III Newton
- D.
  
  Hukum Grafitasi Newton
Correct Answer
C. Hukum III Newton

Explanation
The given statement describes Newton's Third Law of Motion, which states that for every action, there is an equal and opposite reaction. This means that if one object exerts a force on another object, the second object will exert a force of the same magnitude but in the opposite direction on the first object. This law explains the reciprocal nature of forces between two interacting objects.

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7.

Sebuah bola yang menggelinding di atas lantai lama kelamaan akan berhenti. Hal ini terjadi karena adanya ...
- A.
  
  Kelembaman bola
- B.
  
  Gaya gesek dengan lantai
- C.
  
  Gaya grafitasi bumi
- D.
  
  Gaya dorong
Correct Answer
B. Gaya gesek dengan lantai

Explanation
As the ball rolls on the floor, it experiences frictional force from the floor. This frictional force opposes the motion of the ball and eventually brings it to a stop. Therefore, the presence of frictional force between the ball and the floor is the reason why the ball eventually stops rolling.

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8.

Percepatan yang dihasilkan oleh sebuah gaya termasuk besaran ....
- A.
  
  Skalar
- B.
  
  Vektor
- C.
  
  Pokok
- D.
  
  Baku
Correct Answer
B. Vektor

Explanation
Percepatan yang dihasilkan oleh sebuah gaya termasuk besaran vektor karena memiliki magnitude (besaran) dan arah. Dalam fisika, vektor didefinisikan sebagai besaran yang memiliki magnitude dan arah, sedangkan skalar hanya memiliki magnitude tanpa arah. Dalam hal ini, percepatan memiliki magnitude (besaran) yang dapat diukur dalam satuan meter per detik kuadrat (m/s^2) dan juga memiliki arah yang menunjukkan ke mana benda sedang dipercepat.

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9.

Ketika kita mendayung perahu, arah dorongan dayung berlawanan dengan arah laju perahu. Peristiwa ini sesuai dengan hukum ....
- A.
  
  Hukum kelembaman
- B.
  
  Hukum percepatan
- C.
  
  Hukum aksi reaksi
- D.
  
  Hukum grafitasi
Correct Answer
C. Hukum aksi reaksi

Explanation
When we row a boat, the direction of the paddle's force is opposite to the direction of the boat's motion. This is in accordance with Newton's third law of motion, which states that for every action, there is an equal and opposite reaction. The force applied by the paddle on the water propels the boat forward, while the reaction force from the water pushes the boat backward.

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10.

Sebuah benda yang memiliki massa 5 kg mendapat dua gaya dorong yang searah dan segaris kerja, sehingga benda bergerak dengan percepatan 2,5 m/s2 di tempat yang licin. Resultan kedua gaya yang mendorong benda adalah ...;
- A.
  
  5 N
- B.
  
  7,5 N
- C.
  
  10 N
- D.
  
  12,5 N
Correct Answer
D. 12,5 N

Explanation
The acceleration of the object is given as 2.5 m/s^2. Using Newton's second law (F = m*a), we can find the total force acting on the object. Rearranging the equation, we have F = m*a = 5 kg * 2.5 m/s^2 = 12.5 N. Therefore, the resultan of the two forces pushing the object is 12.5 N.

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Current Version
Mar 21, 2023

Quiz Edited by
ProProfs Editorial Team
Sep 22, 2012

Quiz Created by
Styosuwandi

Hukum Newton

Ketika kita naik kendaraan, dianjurkan untuk memakai sabuk pengaman. Menurut fisika, hal ini sesuai dengan hukum ....

Penumpang mobil yang direm mendadak akan terdorong ke depan. Hal ini karena andanya hukum ....

Percepatan yang dialami benda sebanding dengan besar gaya yang diterima dan berbanding terbalik dengan massa benda. Pernyataan ini sesuai dengan ....

Sebuah benda yang memiliki massa 5 kg didorong dengan gaya 10 N di tempat yang licin. Besar percepatan yang dialami benda adalah ....

Karena mendapat gaya 20 N benda yang terletak di lantai licin, bergerak dengan percepatan 4m/s2. Maka massa benda tersebut adalah ....

Jika sebuah benda memberikan gaya kepada benda lain, maka benda kedua kan memberikan gaya pada benda pertama sama besar dan berlawanan arah. Hal ini merupakan isi hukum ....

Sebuah bola yang menggelinding di atas lantai lama kelamaan akan berhenti. Hal ini terjadi karena adanya ...

Percepatan yang dihasilkan oleh sebuah gaya termasuk besaran ....

Ketika kita mendayung perahu, arah dorongan dayung berlawanan dengan arah laju perahu. Peristiwa ini sesuai dengan hukum ....

Sebuah benda yang memiliki massa 5 kg mendapat dua gaya dorong yang searah dan segaris kerja, sehingga benda bergerak dengan percepatan 2,5 m/s2 di tempat yang licin. Resultan kedua gaya yang mendorong benda adalah ...;