Momentum Quiz

A martial arts fighter trains to move their head backward when they know that they are about to get hit. What does this do for them?

• 1. Decreases contact time, which decreases force

• 1. Increases contact time, which decreases force

• 1. Creates a distraction so that the other fighter hits lighter

• 1. Increases momentum and decreases force

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

When a car crashes on the side of the road and hits a guardrail, which part of the design is meant to reduce the initial impact on the driver?

• 1. The guardrail will deflect the car back into the road.

• 1. The guardrail posts are mounted deep in the ground to keep the system still.

• 1. The guardrail bends and crumples.

• 1. The guardrail prevents the driver from hitting utility poles.

Tags

NGSS.MS-PS3-5

A car is driving down the highway and collides with a moth. Which of the following correctly describes force, momentum, and impulse?

• 1. The moth experiences a greater force, but both experience the same momentum change and impulse.

• 1. Both the car and the moth experience the same force, momentum change, and impulse.

• 1. The moth experiences a greater force, momentum change, and impulse.

• 1. Both experience the same force, but the moth experiences more momentum change and impulse.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

A 1,500 kg car is sitting in a parking lot at rest when a 50 kg cyclist passes nearby at a speed of 12 km/hr. Which statement is true about momentum of the two objects?

• 1. A moving bicycle has more momentum than a parked car.

• 1. The car has more momentum than the bicycle because it has more mass.

• 1. If both were moving at the same speed, both would have the same momentum.

• 1. If both were stationary, the bicycle would have more momentum.

Tags

NGSS.HS-PS2-2

A crate is loaded with paper, three printers, and miscellaneous office supplies. It has a total mass of 125 kg. If the loaded crate is pushed at a speed of 2.5 m/s, what is its momentum?

momentum = mass X velocity

Mathematical Equivalence

ON

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

6. Two students are debating whether these two vehicles can have the same momentum. Student A states that the truck cannot have the same momentum as the car. Which of the following statements could student B use to refute this claim?

7. Select the 2 correct answers

• 1. Both vehicles will have the same momentum if their velocities are equal.

• 1. Both vehicles will have the same momentum if they are not moving.

• 1. Both vehicles will have the same momentum if the car is moving faster than the truck.

• Both vehicles will have the same momentum if the product of their mass and velocity is equal.

• 1. Both vehicles will have the same momentum if the truck decelerates while the car accelerates.

Tags

NGSS.HS-PS2-2

9. Which of the following statements are true regarding an object, like an egg, being dropped from a height of 10 m?

• 1. The value of the egg’s momentum increases during the egg’s fall.

• 1. The impact force will be less if the egg is dropped from 15 m.

• 1. The force of gravity increases as the egg gets closer to the ground.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5

NGSS.MS-PS2-4

Which of the following images has more momentum?

momentum = mass X velocity

The diagram shows three vehicles travelling along a straight road at 14 m/s.

Which vehicle has the greatest momentum?

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