Law of conservation of Momentum

The Law of Conservation of Momentum states:

• The total momentum before a collision is equal to the total momentum after a collision.

• The total momentum before a collision is greater than the total momentum after a collision.

• The total momentum before a collision is less than the total momentum after a collision.

• The total momentum before a collision is not related to the total momentum after a collision.

According to Newton's Laws, for every action there is an ....

• equal and opposite reaction.

• equal and parallel reaction.

• unequal and opposite reaction.

• unequal and unrelated reaction.

If two objects collide or explode, they experience

• the same force for the same amount of time.

• different forces for the same amount of time.

• different forces for different amounts of time.

• the same force for different amounts of time.

If two objects collide or explode, they experience

• the same impulse causing the same change in momentum.

• different impulses causing the same change in momentum.

• different impulses causing different changes in momentum.

• the same impulse causing different changes in momentum.

Which cart in the image experiences a greater impulse?

• E

• F

• Same

• Not enough info

Which cart in the image experiences a greater force?

• E

• F

• Same

• Not enough info

Which cart in the image experiences a greater change in momentum?

• E

• F

• Same

• Not enough info

The total momentum before a collision is _________ the total momentum after a collision.

• equal to 
• less than 
• more than
• It depends on the type of collision

The momentum of an object depends upon the object's ___________&_____________.  

• size and shape
• mass and speed
• mass and veloctiy
• mass and energy

Select the best equation that would help solve the problem:

Ball A and Ball B have the same mass. Ball A rolls and collides with Ball B at rest. Ball A rolls with some velocity after the collision, what is the velocity of Ball B?

• Δp = mv

• p = mv

• (before) m_Av_A + m_Bv_B = m_Av_A + m_Bv_B (after)

• (before) m_Av_A + m_Bv_B = (m_A + m_B)v (after)