Physics

Grade-10

Easy

Question

# The mass of the colliding bodies after and before collision is same. Is the statement true or false?

- True
- False

Hint:

### Mass remains unchanged.

## The correct answer is 'True'.

### Collisions in no way affect mass of the bodies because mass only changes when matter is added or taken out from the body. As no such process occurs during collision, the mass remains constant.

### Related Questions to study

Physics

### As a bullet travels through the air, it slows down due to air resistance. How does the bullet’s momentum change as a result?

- Bullets momentum decreases
- Bullets momentum increases
- Bullet’s momentum stays the same
- Cannot say

### As a bullet travels through the air, it slows down due to air resistance. How does the bullet’s momentum change as a result?

PhysicsGrade-10

- Bullets momentum decreases
- Bullets momentum increases
- Bullet’s momentum stays the same
- Cannot say

Physics

### There are two cars, car A and car B. Mass of car A is 3000 kg, travelling at 30 m/s collide with car B of mass 2000 kg travelling at 10 m/s in same direction. After collision, the velocity of car A becomes 60 m/s. Calculate the velocity of car B after the collision?

- – 35 m/s
- – 20 m/s
- 35 m/s
- 20 m/s

### There are two cars, car A and car B. Mass of car A is 3000 kg, travelling at 30 m/s collide with car B of mass 2000 kg travelling at 10 m/s in same direction. After collision, the velocity of car A becomes 60 m/s. Calculate the velocity of car B after the collision?

PhysicsGrade-10

- – 35 m/s
- – 20 m/s
- 35 m/s
- 20 m/s

Physics

### There are two cars, car A and car B. Mass of car A is 3000 kg, travelling at 40 m/s collide with car B of mass 4000 kg travelling at 20 m/s in same direction. After collision, the velocity of car A becomes 50 m/s. Calculate the velocity of car B after the collision?

- 12 m/s
- 12.5 m/s
- 13 m/s
- 14 m/s

### There are two cars, car A and car B. Mass of car A is 3000 kg, travelling at 40 m/s collide with car B of mass 4000 kg travelling at 20 m/s in same direction. After collision, the velocity of car A becomes 50 m/s. Calculate the velocity of car B after the collision?

PhysicsGrade-10

- 12 m/s
- 12.5 m/s
- 13 m/s
- 14 m/s

Physics

### A 3,000 kg truck moving at +15 m/s hits a bus 1,000 kg moving at +10 m/s in the same direction. What is the approximate velocity of the truck if the final velocity of the bus becomes 8 m/s.

- 16 m/s
- 1/16 m/s
- 12 m/s
- 1/12 m/s

### A 3,000 kg truck moving at +15 m/s hits a bus 1,000 kg moving at +10 m/s in the same direction. What is the approximate velocity of the truck if the final velocity of the bus becomes 8 m/s.

PhysicsGrade-10

- 16 m/s
- 1/16 m/s
- 12 m/s
- 1/12 m/s

Physics

### Mass of the blue ball is 0.88 Kg and mass of the pink ball is 1.50 kg

The following example follows law of conservation of momentum.

Is the statement true or false?

Initial:

Final:

- True
- False

### Mass of the blue ball is 0.88 Kg and mass of the pink ball is 1.50 kg

The following example follows law of conservation of momentum.

Is the statement true or false?

Initial:

Final:

PhysicsGrade-10

- True
- False

Physics

### Mass of the blue ball is 0.88 Kg and mass of the pink ball is 1.50 kg

The following example follows law of conservation of momentum.

Is the statement true or false?

Initial:

Final:

- True
- False

### Mass of the blue ball is 0.88 Kg and mass of the pink ball is 1.50 kg

The following example follows law of conservation of momentum.

Is the statement true or false?

Initial:

Final:

PhysicsGrade-10

- True
- False

Physics

### Mass of the blue ball is 0.88 Kg and mass of the pink ball is 1.50 kg

The following example follows law of conservation of momentum.

Is the statement true or false?

Initial:

Final:

- True
- False

### Mass of the blue ball is 0.88 Kg and mass of the pink ball is 1.50 kg

The following example follows law of conservation of momentum.

Is the statement true or false?

Initial:

Final:

PhysicsGrade-10

- True
- False

Physics

### Mass of the blue ball is 0.88 Kg and mass of the pink ball is 1.50 kg

“The following example follows the law of conservation of momentum.”

Is the statement true or false?

Initial:

Final:

- True
- False

### Mass of the blue ball is 0.88 Kg and mass of the pink ball is 1.50 kg

“The following example follows the law of conservation of momentum.”

Is the statement true or false?

Initial:

Final:

PhysicsGrade-10

- True
- False

Physics

### In the explosion of a cracker or a bomb.

- Energy is produced
- Momentum is conserved
- Internal energy is absorbed
- Momentum remains un conserved

### In the explosion of a cracker or a bomb.

PhysicsGrade-10

- Energy is produced
- Momentum is conserved
- Internal energy is absorbed
- Momentum remains un conserved

Physics

### Law of conservation of momentum states that:

- The sum of momenta of the two objects before collision is equal to the sum of momenta after the collision provided there is no external unbalanced force acting on them.
- Magnitude of the final momenta = magnitude of the initial moment.
- All the above

### Law of conservation of momentum states that:

PhysicsGrade-10

- The sum of momenta of the two objects before collision is equal to the sum of momenta after the collision provided there is no external unbalanced force acting on them.
- Magnitude of the final momenta = magnitude of the initial moment.
- All the above

Physics

### What can you say about the numerical data from the figure, in connection with the conservation of linear momentum?

- It is conserved
- Before collision > after collision
- After collision > before collision
- Cannot say

### What can you say about the numerical data from the figure, in connection with the conservation of linear momentum?

PhysicsGrade-10

- It is conserved
- Before collision > after collision
- After collision > before collision
- Cannot say

Physics

### Observe the image and answer the question below:

What is the momentum of object A after collision?

What is the momentum of object A after collision?

- 2050 m/s
- 1800 m/s
- 3200 m/s
- 650 m/s

### Observe the image and answer the question below:

What is the momentum of object A after collision?

What is the momentum of object A after collision?

PhysicsGrade-10

- 2050 m/s
- 1800 m/s
- 3200 m/s
- 650 m/s

Physics

### Observe the image and answer the question below:

What is the momentum of object B before collision?

What is the momentum of object B before collision?

- 2050 m/s
- 1800 m/s
- 3200 m/s
- 650 m/s

### Observe the image and answer the question below:

What is the momentum of object B before collision?

What is the momentum of object B before collision?

PhysicsGrade-10

- 2050 m/s
- 1800 m/s
- 3200 m/s
- 650 m/s

Physics

### Observe the image and answer the question below:

What is the momentum of object A before collision?

What is the momentum of object A before collision?

- 2050 m/s
- 1800 m/s
- 3200 m/s
- 650 m/s

### Observe the image and answer the question below:

What is the momentum of object A before collision?

What is the momentum of object A before collision?

PhysicsGrade-10

- 2050 m/s
- 1800 m/s
- 3200 m/s
- 650 m/s

Physics

### Mass of the blue ball is 0.43 Kg and mass of the pink ball is 0.45 kg

The following example follows law of conservation of momentum. Is the statement true or false?

Initial:

Final:

- True
- False

### Mass of the blue ball is 0.43 Kg and mass of the pink ball is 0.45 kg

The following example follows law of conservation of momentum. Is the statement true or false?

Initial:

Final:

PhysicsGrade-10

- True
- False