Forces

A force is a ______ ?

• push

• pull

• both a push and a pull

• neither

Tags

NGSS.MS-PS2-1

If a moving cart hits a stationary one, which cart which cart experiences the greater force?

• the both experience the same force

• the heavy car

• the light car

If a heavy cart hits a lighter cart, which cart experiences the greater forces as a result of the collision?

• The lighter cart.

• The heavier cart.

• The cars experience no force.

• They both experience the same force, regardless of their masses.

Tags

NGSS.MS-PS2-1

If a heavy cart hits a light one, the light cart experiences a

• lesser change in velocity than the heavy one.

• greater change in velocity than the heavy one

If a heavy cart and a light cart collide, the heavy cart experiences

• a greater change in velocity than the lighter cart.

• a lesser change in velocity than the lighter cart.

When two carts collide they undergo a change in velocity. This change in velocity occurs

• before the collision.

• after the collision.

• during the collision.

What is a "negative" force?

• a very light tap.

• a loss of force

• a force in a direction that you've decided to call negative.

A vector is a quantity that

• has magnitude

• has direction

• has magnitude and direction

What does a negative velocity mean?

• moving backwards in time

• moving in a direction that you have called negative

• moving really slowly

• change

• addition

• subtraction

• multiplication