Momentum and Impulse

What is the formula for calculating momentum?

• m=mv
• p=m/v
• p=v/m
• p=vm

Tags

NGSS.HS-PS2-2

A biker with a mass of 75 kg moves along the path with a constant velocity of 5 m/s. What is the biker's momentum?

• 25 m/s
• 375 m/s
• 25 kg m/s
• 375 kg m/s

Tags

NGSS.HS-PS2-2

How do the following variables change if you drop an egg on a pillow rather than cement?

• constant impulse, increasing time, decreasing force
• increasing impulse, increasing time, increasing force
• constant impulse, increasing time, increasing force
• decreasing impulse, decreasing force, increasing time

Tags

NGSS.HS-PS2-1

If an action force is a golf club hitting a golf ball, then the reaction force is

• exerted on the golf ball
• exerted on the golf cart
• exerted on the golf club by the golf ball
• exerted by the squirrel that is hiding in the tree

Tags

NGSS.MS-PS2-1

How much momentum does a stationary battle ship have if it has a mass of 2,575,000 kg?

• 2,575,000 N
• 2,575,000 kg m/s
• 0 Momentum requires mass and velocity
• none of the above

Tags

NGSS.HS-PS2-2

A runner has a momentum of 670 kg m/s and is traveling at a velocity of 9 m/s. What is his mass?

• 6030 kg
• 0.0134 kg
• 74.4 kg
• 80 kg

Tags

NGSS.HS-PS2-2

When the same force is applied to both the male African elephant and the female Asian elephant, their acceleration is different. Why?

• Male and female elephants have different heights.
• The male elephant has more mass
• The female elephant has probably eaten more
• The male elephant has less mass

Tags

NGSS.HS-PS2-1

Why should you follow through when playing tennis?

• To increase the amount of force applied
• To increase the amount of time the force is applied
• To keep the impulse constant
• To minimize the change in velocity

A ball traveling down at 10 m/s bounces back up at velocity of 7 m/s. What is the change in the ball's velocity?

• +3 m/s
• +17 m/s
• -3 m/s
• -17 m/s

A cell phone is dropped onto the ground. One phone takes 1 second to stop. Another phone takes 2 seconds to stop. What happens to the force for the 2 second stop?

• Force is 1/2 as big
• Force doubles
• Force stays the same
• Force is 1/4 as big

Tags

NGSS.HS-PS2-1