Momentum

At Any Given Time the Momentum of an object depends on ... Select All That Apply

• How Rapidly the Object is Accelerating

• How much mass the object has.

• The net force which the object is experiencing

• How fast or slow the object is moving

• The time over which the object has been moving

An object that is slowingn down would have...

• A negative momentum

• A positive momentum

• no momentum

• an increasing momentum

• a decreasing momentum

Which one of the following represents the units of momentum?

• meter/second

• pound/second

• Newton * m/s

• kilogram * m/s

• kilogram * m/s²

Momentum is a scalar quantity it has a direction associated with it.

• True

• False

A rightward moving object is slowing down. The direction of its momentum is _____________________.

• rightward

• leftward

• impossible to tell with this information

• Nonsense, momentum does not have direction

An object that has momentum can best be described as ....

• changing its velocity

• moving fast

• having its mass in motion

• resisting a change in its state of motion

• encountering a net force.

An object that has a lot of momentum can be sure to .....

• have a lot of mass

• be moving very fast

• be changing its velocity very rapidly

• be encountering a large net force

• Nonsense, you can't be sure of any of these for sure!!

Object A has a mass of 4 kg and a velocity of 4 m/s. Object be has a mass of 2kg and a velocity of 4 m/s. Object A has _____________ the momentum as B

• Twice

• Four times

• the same

• half

The reason padded dashboards are used in cars is that they 

• decrease the impulse in a collision.
• increase the time of impact in a collision.
• increase the force of impact in a collision.
• decrease the momentum of a collision

Tags

NGSS.HS-PS2-3

A table tennis ball launcher is fired. Compared to the impulse on the ball, the impulse on the launcher is 

• smaller
• larger
• the same

Tags

NGSS.HS-PS2-1