Force and Momentum

Momentum is a ____________________ quantity

• science

• scalar

• vector

• energy

Tags

NGSS.HS-PS2-2

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

A 0.250 kg cart moving at 0.400 m/s has how much momentum?

• 0.1 kg-m/s

• 1 kg-m/s

• 10 kg-m/s

• 100 kg-m/s

Determine the momentum of 1000-kg car moving northward at 20 m/s......... 

• 20000 N

• 20000 Joules

• 20000 Kg * m/s

• 20000 kg * m/s north

Tags

NGSS.HS-PS2-2

The definition of momentum is

• Mass in Motion

• The size of an object

• The velocity of an object

• A comparison between two objects

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is Newton's Third Law?

• Object in motion stays in motion and an object at rest stays at rest unless acted on by a outside force

• Force = mass x acceleration

• For every action there is an equal and opposite reaction

Tags

NGSS.MS-PS2-1

Why is momentum considered to be a vector quantity?

• Momentum has to indicate both magnitude and direction.

• Momentum has to have a positive value.

• Momentum has to be calculated using speed.

• Momentum has a quantity but not a unit.

Tags

NGSS.HS-PS2-2

You are calculating the momentum of a 2 kg toy car moving along the sidewalk at a speed of 0.5 m/s. What would happen to the momentum if you doubled the mass of the car?

• You would double the momentum.

• You would triple the momentum.

• You would half the momentum.

• The momentum would not change.

This is Newton's 3rd law

• True

• False

Tags

NGSS.MS-PS2-1

When there is a change in motion?

• When forces are balanced

• When the forces are unbalanced

• Whe forces are equal

• Never

Tags

NGSS.HS-PS2-1