Forces Test Prep

A toy car is pushed and begins to move. As the toy car moves, it slows and comes to a stop. What force causes the toy car to stop?

• The force of gravity which is acting in the same direction as the car was moving

• The force of friction which is acting in the same direction as the car was moving

• The force of gravity which is acting in the opposite direction as the car was moving

• The force of friction which is acting in the opposite direction as the car was moving

Answer explanation

Friction! (between the toy car's wheels and the surface)

Tags

NGSS.MS-PS2-2

Gravity is a ___________.

• Velocity

• Speed

• Force

• Weight

Tags

NGSS.MS-PS2-4

If an equal force acts on each of the following objects, which will have the GREATEST acceleration?

• A golf ball

• A soccer ball

• A football

• A baseball

Answer explanation

The object with less mass will have the greatest acceleration.

Tags

NGSS.MS-PS2-2

In which situation are the forces operating on an object unbalanced?

• A stack of books rests on a table

• A car has a constant motion of 60 miles per hour

• Two sides of a balance both support 20 kg

• A baseball falls at a faster and faster speed

Tags

NGSS.MS-PS2-2

If two arm wrestlers exert a force on each other's hands, and the hands don't move, the forces must be ______________.

• Balanced

• Unbalanced

• Weak

• Strong

Tags

NGSS.3-PS2-1

Linda wants to do an experiment to test the effect that weight has on motion. She will set up an experiment as shown in the following diagram, putting different weights on the string to see how far the car moves.

How will different weights affect the motion of the car?

• Weight will not have any affect.

• The heavier the weights, the quicker the car will move forward and fall off the table.

• The heavier the weights, the slower the car will roll.

• The lighter the weights, the quicker the car will move forward and fall off the table.

Tags

NGSS.MS-PS2-2

The picture shows wagons filled with boxes. All of the boxes are the same size and have the same mass. Which wagon would take the least force to move?

• Wagon A

• Wagon B

• Wagon C

• Wagon A

Tags

NGSS.MS-PS2-2

The picture shows a carousel. The carousel spins while the horses move up and down. A student determines that each horse completes one up-down cycle in 20 seconds. The student rides a horse on the carousel for 3 minutes, which equals 180 seconds.

• 4 times

• 7 times

• 9 times

• 20 times

Answer explanation

180 divided by 20 equals 9

Which of the following planets would have the strongest gravitational attraction?

• Planets A and B

• Planets A and C

• Planets B and C

• Planets A and D

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

A student is swinging on a swing. The table shows data on the positions of the student during six seconds.

Which prediction shows where the student will be if the pattern continues?

• 7 seconds = Point Z

• 8 seconds = Point X

• 9 seconds = Point X

• 10 seconds = Point Y

Tags

NGSS.MS-PS2-1