Momentum

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

• size and shape
• mass and speed
• mass and veloctiy
• mass and energy

The definition of momentum is

• Mass in Motion
• The size of an object
• The velocity of an object
• A comparison between two objects

The equation to calculate momentum is

• p=mv
• p=1/2mv²
• p=mgh
• p=mg

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

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

When the speed of an object is doubled, its momentum

• remains unchanged in accord with the conservation of momentum.
• doubles
• quadruples
• decreases

Why does a semi truck have more momentum than a car if they are both traveling at 60kph?

• Truck is more massive

• Truck is less massive

• Car is moving faster

• Car is more massive

Which would have more momentum between a train moving at 0 kph and a bug flying at 0.5 kph?

• Bug

• Train

• They are the same

Which has more momentum: a car stopped at a red light or a bike moving at 15 mph?

• car
• bike
• they are equal
• cannot determine using the info provided

The impulse acting on an object is always equal to its change in _____.

• Momentum
• Energy
• Position
• Velocity