Calculating Force and Momentum

What net force will move a 1500 kg truck from rest to 30 m/s in just 6 seconds? You have to solve for acceleration before you can solve for force.

• 50 N

• 300 N

• 7,500 N

• 45,000 N

Tags

NGSS.MS-PS2-2

When the air in the balloon is released, the rocket will move forward.

Which of the following statements best describes the force that cause the motion in the situation explained above?

• The force of the balloon is pushing up on all sides as the air is released.

• The air outside the balloon pushes the balloon forward as it opposes the released air.

• The force of the released air is pushing backwards as the balloon gets smaller.

• The gravitational force is pulling down on the balloon as the air is released.

Tags

NGSS.MS-PS2-1

Which of the following objects would have the greatest gravitational attraction between them if they were set 1.0 km apart?

• A .10 kg object and a 100 kg object

• A 10 kg object and a 100 kg object

• A 10 kg object and a 100,000 kg object

• A 100,000 kg object and a 100,000,000 kg object

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

A soccer player kicks a stationary ball with 25 newtons of force northward. According to Newton's first law of motion, what happens to the ball?

• The ball travels northward with 50 newtons of force.

• The ball travels northward with 25 newtons of force.

• The ball travels southward with 50 newtons of force.

• The ball travels southward with 25 newtons of force.

Which statement best describes the amount of work performed for the three activities? Work = force x distance

• Activity 3 required more work than Activity 1, but Activity 3 did not require more work than Activity 2.

• Activity 1 required the same amount of work as Activity 3.

• Activity 2 required the most work.

• Activity 1 was the only activity that required work.

With the same force applied, which of these will have a greater acceleration?

• 100 gram mass

• 200 gram mass

• 300 gram mass

• All the objects would have the same acceleration.

Tags

NGSS.MS-PS2-2

A toy car starts at rest, and then a force is applied to it which causes it to move as seen in the diagram below. What force is being applied to the car shown above?

• A balanced force to the right

• A balanced force to the left

• An unbalanced force to the right

• An unbalanced force to the left

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Two crates are dropped from a plane, one with a mass of 100 kg and the other with a mass of 75 kg. How would the force of impact compare between the two crates?

• The crate with the smaller mass will have a larger force of impact.

• The crate with the larger mass will have a larger force of impact.

• The crates will have the same force of impact.

• There is not enough information to determine which would have the greater impact force.

Tags

NGSS.HS-PS2-1

A student decides to jump off a skateboard toward the east. Based on the action-reaction forces, which direction will the skateboard most likely move when she jumps off?

• North

• East

• South

• West

Tags

NGSS.MS-PS2-1

Two students on skateboards push on each other and find that they move in opposite directions.

If Student A has a mass twice that of Student B, which of the following best describes the resulting acceleration?

• Both students will not move.

• Student B will have a larger acceleration than Student A.

• Student A will have a larger acceleration than Student B.

• Both students will have an equal and opposite acceleration.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2