Momentum 21-22

Which of the following has the greatest momentum?

• a scurrying cockroach

• a parked semi-truck

• more information is needed

Which of the following has more momentum? 

• a moving SUV
• a moving semi-truck
• more information is needed

Most modern vehicles have padded dashboards. This reduces collision injuries by...

• reducing the driver's change in momentum
• increasing the driver's change in momentum
• increasing the force of impact
• increasing the time of impact

The definition of momentum is

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

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

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

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

The equation to calculate momentum is

• p=mv
• p=1/2mv²
• p=mgh
• p=mg

What is the net force?

• 40 N left
• 0 N Balalnced
• 400 N right
• 40 N right

The impulse is ______ the change in momentum

• greater than
• equal to
• less than
• always double

What is the unit for momentum?

• m/sec

• kg/sec

• kg/m

• kg x m/sec