Motion Speed Velocity and Momentum

When the speed of an object is doubled, its momentum

• remains unchanged in accord with the conservation of momentum.

• doubles

• quadruples

• decreases

Tags

NGSS.HS-PS2-2

Which object listed below has the greatest momentum?

• 0.05 kg object rolling at 0.2 m/s.

• 0.15 kg object rolling at 2 m/s.

• 0.15 kg object rolling at 1 m/s

• 0.4 kg object rolling at 2 m/s.

Tags

NGSS.MS-PS3-1

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-PS2-2

NGSS.MS-PS3-1

A runner has a momentum of 720 kg m/s and is traveling at a velocity of 5 m/s. What is his mass?

• 14.4 kg

• 1400 kg

• 144 kg

• 360 kg

Tags

NGSS.HS-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.

Calculate the momentum of a 55-kg running back moving westward at 10 m/s.

• 550 kg·m/s, west

• 550 kg·m/s

• 550 m/s, west

• 550 kg, west

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.

Tags

NGSS.HS-PS2-2

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

• size and shape

• mass and speed

• mass and veloctiy

• mass and energy

Tags

NGSS.HS-PS2-2