Science Review

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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What does this graph represent?

• Constant speed
• Acceleration
• Not moving

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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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During which interval is the object speeding up?

• A to B
• B to C
• D to E
• E to F

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The tendency of an object at rest to stay at rest unless it is acted upon by a force is ___________________

• inertia
• motion
• gravity
• lubricant

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What force causes rivers to run downhill?

• sliding friction
• gravity

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Which is an example of Newton's 2nd Law of Motion? (the acceleration of an object depends on the mass of the object and the force applied)

• throwing a baseball
• swimming
• jumping on a trampoline
• pushing a full shopping cart vs. pushing an empty shopping cart

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Force = Mass x Acceleration
How much force is needed to accelerate a 130 pound runner at 2 m/sec?

• 9800 N
• 2000 N
• 260 N
• 65 N

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A bowling ball and a soccer ball are rolling at the same speed  on the same surface. Why will the bowling ball be harder to stop?

• it has greater velocity
• it has greater momentum
• it has greater friction
• it has greater acceleration

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A change in position or location

• Magnetism
• Gravity
• Position
• Movement