Newton's Laws Of Motion Review

Using the equation F=ma, which object below will have the greatest force?

• 5kg object moving at 10 m/s/s

• 5kg object moving at 20 m/s/s

• 10 kg object moving at 5 m/s/s/

• 20 kg object moving 1 m/s/s/

Tags

NGSS.MS-PS2-2

A basketball player pushes off of the floor to shoot a lay up. As the student exerts force on the floor, which of these also occurs?

• The floor exerts an equal and opposite force on the basketball player.

• The floor exerts a downward force toward the center of Earth.

• The floor begins to accelerate toward the student.

• The floor does not exert any force.

Tags

NGSS.MS-PS2-1

Calculate the total force from the diagram above. Which direction will they move and by how much force?

• 25 N west

• 25 N east

• 375 N West

• No motion

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

Calculate the total force acting on this box. Where will it move based on these forces?

• upward and to the left

• upward and the to right

• downward and to the left

• downward and to the right

Tags

NGSS.MS-PS2-2

If a car is in an accident, air bags and seat belts may help reduce injury to a passenger by

decreasing the force that stops the passenger’s motion. The force is reduced because the seat belts or air bags decrease the -

Group of answer choices

• acceleration of the passenger

• mass of the passenger

• reaction time of the driver

• speed of the vehicle

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-3

The picture above shows a student about to throw a ball while standing on a skateboard. Which direction will the skateboard move when she throws the ball?

• backward

• foward

• no motion

• upward

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

A boulder falls freely from point A to point B as shown in the diagram below. Which statement best explains the relationship between the height of the boulder and its potential and kinetic energy as it falls?

• Its potential energy decreases and its kinetic energy increases.

• Its potential energy increases and its kinetic energy decreases.

• Its potential energy and kinetic energy both decrease.

• Its potential energy and kinetic energy both increase.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

The diagram below shows the steps necessary to produce the energy needed to run a hair dryer. Which energy transformations occur from steps A to B to C?

• mechanical to thermal to electrical

• Chemical to thermal to mechanical

• thermal to chemical to mechanical

• chemical to mechanical to electrical

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-3

The graph below shows the movement of an object at several points in time. What is the average speed of the object?

• 2 minutes per meters

• 4 minutes per meters

• 25 meters per minute

• 2 meters per minute

Tags

NGSS.MS-PS3-1

Two people are trying to push a large box across a floor. Each person pushes with an equal amount of force. The total amount of force they exert on the box is 500 Newtons. Even though they push, the box will not move. What is the amount of force exerted by the box on each person?

• 500 N

• 250 N

• Zero

• 1000 N

Tags

NGSS.MS-PS2-1