Force and Motion Study Guide

A girl is playing with a basketball. The girl throws the basketball on the ground one time, it bounces back in the air, and then falls down again.

Why does the basketball come down again after it bounces into the air?

• It is pulled down by gravity

• It is pushed down by air

• It is attracted by the material of the road.

• It is pushed away by the material of her shoes.

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NGSS.MS-PS2-2

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Two objects are dropped from the same heights.

Which statement is true about the two objects?

• Once dropped, both objects will not be impacted by gravity.

• Once dropped, gravity will push both objects away from each other.

• Once dropped, gravity will pull both objects towards the center of the Earth.

• Once dropped, both objects will bounce when they hit the ground.

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NGSS.MS-PS2-4

A student designed a test ramp using 4 books and a flat piece of wood. During the first test of the ramp, the toy car rolled down the ramp smoothly. The student then removes one book from the ramp. What will likely happen to the motion of the toy car compared to the first test?

• The toy car will move at a greater speed.

• The toy car will move at a slower speed.

• The toy car will move at the same speed.

• The toy car will be motionless.

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NGSS.MS-PS2-2

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A student releases a 300 g toy car on a ramp, as shown in the diagram. The student increases the height of the ramp and then releases the toy car from the same place on the ramp. What change will the student observe?

• The speed of the toy car will increase.

• The speed of the toy car will decrease.

• The toy car will not move in a straight line.

• The distance traveled by the toy car on the ground will decrease.

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NGSS.MS-PS2-2

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A force is applied on Book 1 in the direction shown by the arrow. What will happen to Book 2 as it gets hit by Book 1?

• It will slide to the left.

• It will slide to the right.

• It will slide above Book 1.

• It will slide below Book 1.

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NGSS.MS-PS2-1

In which case would the wooden log shown move faster, if the force used by each person is the same?

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NGSS.MS-PS2-2

Emma moved alphabet blocks of different sizes in a toy cart. She pulls each load of blocks with the same force.

In which case would Emma move the slowest?

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Tags

NGSS.MS-PS2-2

Hanna places 10 books in a large box and pushes the box across the floor in her room. She finds that the box moves slowly.

What should Hanna do to increase the speed?

• Add more books to the box.

• Push the box with a greater force.

• Transfer the books to a larger box.

• Pull the box from the other end instead of pushing it.

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NGSS.MS-PS2-2

Forces in opposite directions are applied to a model car. In which direction will the car move?

• The car will not move.

• The car will move to the right.

• The car will move to the left.

• The car will spin around.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Two bikes are moving to the right as shown in the image. Equal forces are applied to each bike. How is the motion of the bikes affected?

• Both bikes will speed up.

• Both bikes will slow down.

• Bike A will speed up, and Bike B will slow down.

• Bike A will slow down, and Bike B will speed up.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2