Momentum Review 2

Which of the following has the least amount of momentum?

• An ant walking along the ground
• An ant at rest
• An elephant walking
• An elephant running

Tags

NGSS.HS-PS2-2

Momentum depends on an object's mass and its ____________.

• Inertia
• Velocity
• Potential energy
• Height

Momentum is often referred to as "__________ in motion."

• Inertia
• Matter
• Volume
• Force

Both mass and velocity are _______________ proportional to momentum.

• Directly
• Inversely

Tags

NGSS.HS-PS2-2

To change the momentum of an object, a/an _________________ must be applied.

• Impulse

• Force

Bungee cords are made out of an elastic material in order to _____ the time over which a person coomes to a stop, which _____ the force acting on the person.

• Increase; decreases
• Increase; increases
• Decrease; decreases
• Decrease; increases

An object that bounces has a _____ change in momentum than an identical object that doesn't bounce.

• Smaller
• Larger

To maximize the change in momentum of an object, a _____ force should be applied over a _____ time.

• Large; long
• Large; small
• Small; long
• Small; short

The impulse-momentum relationship is used by engineers to save lives.  Air bags, seat belts, and safer walls (Nascar) depend on the ______ relationship between time to stop and force.

• Direct
• Inverse

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

Tags

NGSS.HS-PS2-2