Momentum and Impulse

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity, represented by the equation p = mv.

Front

What is impulse?

Back

Impulse is the change in momentum of an object when a force is applied over a period of time, calculated as the product of force and time (Impulse = Force × Time).

Front

What does the impulse-momentum theorem state?

Back

The impulse-momentum theorem states that the impulse on an object is equal to the change in momentum it causes.

Front

What is the law of conservation of momentum?

Back

The law 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.

Front

How do you calculate momentum?

Back

Momentum (p) is calculated using the formula p = mv, where m is mass and v is velocity.

Front

What causes a change in momentum?

Back

A change in momentum is caused by an impulse, which is the result of a force acting over a period of time.

Front

If a car and a bike are moving, which has more momentum depends on what factors?

Back

The momentum of an object depends on its mass and velocity; therefore, a heavier object moving slowly can have more momentum than a lighter object moving quickly.

Front

What is the relationship between force and impulse?

Back

Impulse is equal to the force applied multiplied by the time duration over which the force is applied (Impulse = Force × Time).

Front

What happens to momentum in a perfectly elastic collision?

Back

In a perfectly elastic collision, both momentum and kinetic energy are conserved.

Front

What happens to momentum in an inelastic collision?

Back

In an inelastic collision, momentum is conserved, but kinetic energy is not conserved; some kinetic energy is transformed into other forms of energy.