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What is a PUSH or PULL of an object?

• Motion
• Force
• Friction
• Gravity

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Why is it harder for the boy in Image B to get down the hill?

• Motion
• Friction
• Work
• Displacement

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Which force produces a change in motion?

• unbalanced force
• balanced force
• gravitational force
• frictional force

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NGSS.MS-PS2-1

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If these boys are pulling with the same amount of force.  What will happen?

• The boy in blue will win.
• They will not move at all.
• The boy in red will win.
• Both will fall down.

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

When you tell the direction and speed of an object, you give its

• motion
• velocity
• acceleration
• mass

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NGSS.MS-PS3-1

What is the net force on the block? (click on the words to view the picture)

• 5 Newtons up
• 5 Newtons down
• 15 Newtons up
• 15 Newtons down

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NGSS.MS-PS2-2

If a 10 kilogram object accelerates suddenly at 15 m/s², how much force was applied to the object?

• 150 Newtons
• 15 Newtons
• 150 kilograms
• 100 kilograms

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NGSS.MS-PS2-2

Which of the following objects has the least acceleration?

• a. an empty shopping cart pushed with a hard force
• b. a full shopping cart pushed with a hard force
• c. an empty shopping cart pushed with a light force
• d. a full shopping cart pushed with a light force

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NGSS.MS-PS2-2

A baseball is thrown a distance of 50 meters. What is the speed if it takes 2 seconds to cover that distance?

• 100 m/s²
• 25 m/s²
• 52 m/s²
• 100 seconds

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Speed is different from velocity because

• Velocity has a direction
• Speed uses Distance /Time
• Velocity doesn't include time
• Velocity doesn't include distance