Momentum

Front

What is the formula for calculating momentum?

Back

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

Front

What is the unit of momentum?

Back

The unit of momentum is kilogram meter per second (kg * m/s).

Front

If a 1000-kg car is moving at 20 m/s, what is its momentum?

Back

The momentum of the car is 20000 kg * m/s north.

Front

What is impulse in physics?

Back

Impulse is the change in momentum of an object when a force is applied over a period of time.

Front

How is impulse calculated?

Back

Impulse (J) is calculated using the formula: J = F * t, where F is the force applied and t is the time duration.

Front

What is the impulse experienced by a football kicked with a force of 20 N for 0.3 seconds?

Back

The impulse on the ball is 6 N*s.

Front

What does the law of conservation of momentum state?

Back

The law of conservation of momentum states that in a closed system, the total momentum before a collision is equal to the total momentum after the collision.

Front

In a collision, what remains constant?

Back

The total momentum remains constant in any collision.

Front

What is the relationship between momentum before and after a collision?

Back

The momentum before the collision (P_before) is equal to the momentum after the collision (P_after).

Front

What type of quantity is momentum?

Back

Momentum is a vector quantity, meaning it has both magnitude and direction.