Force and Motion

If the man and the ball travels 90 m in 9 seconds, what is their average speed?

• 10 m/s

• 180 m/s

• 99 m/s

• 10 meters

If a lizard can run 8 m across the water in 4 seconds, how fast is he traveling?

• 32 m/s

• 2 m/s

• 2 seconds

• 34 meters

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This game of tug of war is an example of _________ forces.

• unbalanced

• balanced

• potential

• net zero

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NGSS.MS-PS2-1

What will the net force on the soccer ball be?

• 50 N to the left

• 50 N to the right

• 200 N to the left

• 200 N to the right

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What is the net force on the car?

• 400 N forward (left)

• 0 N (balanced forces)

• 200 N forward (left)

• 200 N backward (right)

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A force that opposes motion is

• friction

• inertia

• acceleration

• momentum

What effect does friction have on a moving object?

• it causes the moving object to slow and eventually stop

• it causes the moving object to speed up

• it keeps the moving object moving in the same direction forever

• it causes the moving object to turn around and move in the opposite direction

If you draw a distance/time graph and place units of seconds on the horizontal axis, you would place units of ________ on the vertical axis.

• grams

• meters

• Newtons

• kilograms

Person on the left = 45 N

Person on the right = 32 N

What is the net force?

• zero N

• 10 N

• 77 N

• 13 N

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2. ______________________ is any push or pull on an object.

• force

• mass

• gravity

• air resistance

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