Momentum

Front

What does momentum depend on?

Back

Momentum depends on an object's mass and velocity.

Front

What happens to momentum when the speed of an object is doubled?

Back

When the speed of an object is doubled, its momentum also doubles.

Front

Calculate the momentum of a 1000-kg car moving southward at 20 m/s.

Back

The momentum is 20000 kg·m/s south.

Front

Calculate the momentum of a 55-kg running back moving westward at 10 m/s.

Back

The momentum is 550 kg·m/s, west.

Front

What is the unit for momentum?

Back

The unit for momentum is kg·m/s.

Front

Define momentum.

Back

Momentum is the product of an object's mass and its velocity.

Front

What is the formula for calculating momentum?

Back

The formula for momentum (p) is p = mass (m) × velocity (v).

Front

If an object has a mass of 10 kg and is moving at a velocity of 5 m/s, what is its momentum?

Back

The momentum is 50 kg·m/s.

Front

How does momentum relate to Newton's second law of motion?

Back

Momentum is the quantity that is conserved in an isolated system, and it relates to Newton's second law as F = dp/dt, where F is force and dp/dt is the rate of change of momentum.

Front

What is the principle of conservation of momentum?

Back

The principle of conservation of momentum states that in a closed system, the total momentum before an event is equal to the total momentum after the event.