Physical Science

What is the definition of a force?

• an object in motion

• a stopped object

• energy in use

• a push or pull

Tags

NGSS.MS-PS2-1

Which of the following does every force have?

• a push

• a pull

• strength and direction

• direction and speed

What force is Willis using to change the direction of motion of the ball?

• pull

• push

• friction

• gravity

Ted pulls Alice in a wagon while Ginger pushes. Evan walks beside them. Which of them is not placing a force on the wagon?

• Ted

• Alice

• Ginger

• Evan

Alicia and Samantha are playing tug-of-war, but neither is moving. What are they demonstrating?

• push and pull

• unbalanced pulls

• gravity and friction

• balanced forces

When Ted, Alice, and Ginger pull Alicia, Samantha, and Juan over in a game of tug-of-war, what are they demonstrating?

• gravity and friction

• unbalanced forces

• pushes and friction

• balanced forces

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

When a batter swings and hits a pitched ball, how is he or she using a force on the ball?

• to maintain the speed of the ball

• to pull the bat to the ball

• to change the direction of the ball

• to increase the pull of gravity on the ball

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which force can you observe if you ride in a horse-drawn carriage?

• The horse pushes the carriage from behind.

• The horse uses a pull.

• Gravity keeps the carriage rolling.

• Balanced forces move the horse.

How does a boy on a playground swing demonstrate regula motion?

• The swing moves back and forth in a predictable pattern.

• The boy swings higher when he is pushed.

• Balanced and unbalanced forces cause his movement.

• The boy is using a force to move the swing.

Tags

NGSS.MS-PS2-4

What can you tell by watching a merry-go-round in motion?

• Unbalanced forces will cause the ride to instantly stop spinning.

• The direction it is spinning will suddenly change.

• Gravity will make it stop unexpectedly.

• Its next spin will be in the same direction as its last several spins.

Tags

NGSS.MS-PS3-1

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