Momentum Practice

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity, represented by the formula p = mv, where p is momentum, m is mass, and v is velocity.

Front

What is the formula for calculating momentum?

Back

The formula for momentum is p = mv, where p is momentum, m is mass, and v is velocity.

Front

What are the units of momentum?

Back

The units of momentum are kg-m/s (kilogram meter per second).

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 (like a collision) is equal to the total momentum after the event.

Front

What is the difference between elastic and inelastic collisions?

Back

In elastic collisions, both momentum and kinetic energy are conserved. In inelastic collisions, momentum is conserved, but kinetic energy is not.

Front

What happens to momentum in a perfectly inelastic collision?

Back

In a perfectly inelastic collision, the colliding objects stick together after the collision, and the total momentum is conserved.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion, calculated using the formula KE = 1/2 mv², where KE is kinetic energy, m is mass, and v is velocity.

Front

True or False: The kinetic energy of a moving object is always equal to its momentum.

Back

False. Kinetic energy and momentum are related but are not equal; they have different formulas.

Front

What does the area under a velocity vs. time graph represent?

Back

The area under a velocity vs. time graph represents the object's displacement.

Front

What is Newton's first law of motion?

Back

Newton's first law states that an object at rest will remain at rest, and an object in motion will remain in motion at a constant velocity unless acted upon by a net external force.