Momentum

Which of the following has the MOST momentum?

• rolling ping-pong ball

• rolling bowling ball

• rolling soccer ball

• rolling basketball

Which object has more momentum?

• Baseball in the pitchers hand

• baseball, lost, in a messy room

• baseball in flight

• baseball in a catchers mitt

Which object has more momentum?

• motorcycle at 15 mph?

• bike at 15 mph

• car at a stoplight

• runner at 10 mph

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

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

The equation to calculate momentum is

• p=mv
• p=1/2mv²
• p=mgh
• p=mg

Momentum is a ____________________ quantity because velocity has direction and magnitude.

• science

• scalar

• vector

• energy

Find the momentum of a 3.0 kg mass when it is stopped.

• 0 kg*m/s

• need to know the velocity

• 3.0 kg*m/s

• 9.8 kg * m/s

Which of the following correctly explains why less force is required to stop a person using an airbag?

• hitting the airbag decreases the person's momentum
• the airbag changes the person's momentum over a longer time interval
• the airbag is very soft, like a pillow
• decreasing the time of the impact decreases the force of the impact

When two objects collide in a frictionless environment, the Momentum_before is ____________ the Momentum_after.

• more than

• less than

• equal to

• unrelated to

At what speed do the two blocks move after the collision?

• 2 m/s

• 5 m/s

• 10 m/s

• 4 m/s