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AP Physics Momentum/Impulse

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Perfectly elastic collision

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Mar 1, 2020

Cards (20)

Section 1

(20 cards)

Perfectly elastic collision

Front

Two objects collide and conserve their Kinetic Energy & momentum. Objects bounce off of each other.

Back

Direction of momentum

Front

Same as direction of velocity

Back

Pool balls hitting each other, bat & baseball are examples of...

Front

Elastic collisions

Back

Equation for impulse

Front

J=Ft

Back

How hard an object hits

Front

force of impact

Back

Term applied to a physical quantity that remains unchanged during interactions

Front

Conserved

Back

Impulse -momentum theorem

Front

Impulse is equal to the change in momentum

Back

Amount of time the impact lasts

Front

time of impact

Back

Units for momentum

Front

kg m/s

Back

Perfectly inelastic collision

Front

Two colliding objects stick together to become one; momentum is conserved, but Kinetic energy is not.

Back

The point at which the total mass of a system of masses can be considered to be concentrated.

Front

Center of mass

Back

Units for impulse

Front

N s

Back

When objects collide in-elastically the Kinetic Energy is not conserved, where does it go?

Front

Becomes heat and sound.

Back

The forces that act on the objects of a system from outside the system. The agent of the force is not a part of the system.

Front

External forces

Back

Clay balls hit & remain stuck, cars crash & become tangled are examples of...

Front

Inelastic collisions

Back

Impulse

Front

The amount of force acting on an object times the time in which this force is acting.

Back

Conservation of momentum

Front

The total momentum of an isolated system is conserved (unchanged) after a collision or explosion as long as no external forces act on the system.

Back

Linear Momentum

Front

The quantity of motion of a moving body. Vector quantity. For various objects is the sum of the individual quantities.

Back

Equation for momentum

Front

p=m v

Back

The forces which act between the objects of a system.

Front

Internal forces

Back