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In a rocket launch, the principle of conservation of momentum is demonstrated by:

The acceleration of the rocket due to thrust.

The total mass of the rocket decreasing.

The increase in speed as fuel burns.

The expulsion of gases from the rocket engine.

Which of the following is an example of an inelastic collision?

Two cars colliding and sticking together.

A rocket accelerating in space.

A ball bouncing off a wall.

A hockey puck sliding on ice.

Which of the following is an example of an explosion that demonstrates the principle of conservation of momentum?

A car crashing into a wall.

A rocket launching.

A ball bouncing off a floor.

A firecracker exploding.

If a 5 kg object is moving with a velocity of 10 m/s, what is its linear momentum?

10 kg·m/s.

50 kg·m/s.

500 kg·m/s.

5 kg·m/s.

The principle of conservation of linear momentum states that:

Momentum of each object in a system is conserved.

Momentum is conserved only when objects collide.

Total momentum is always conserved in a closed system.

Total momentum increases in an isolated system.