Iowa Practice Science

"For every action, there is an equal and opposite reaction."

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• Newton's 4th Law

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A Newton is a unit of...

• force
• inertia
• acceleration
• velocity

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The picture is an example of Newton's...

• 1st Law

• 2nd Law

• 3rd Law

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work is...

• energy from the sun
• a type of machine
• a force that moves an object
• a force that pulls you toward the earh

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Mechanical Advantage:  To reduce the friction of moving something.

• Lever
• Inclined Plane
• Screw
• Wheel and Axle

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What type of simple machine is this?

• Pulley

• Screw

• Inclined Plane

• Lever

GRAVITATIONAL POTENTIAL ENERGY DEPENDS ON

• MASS AND VELOCITY
• MASS AND WEIGHT
• WEIGHT AND HEIGHT
• HEIGHT AND DISTANCE

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WHICH OF THE FOLLOWING IS NOT AN EXAMPLE OF POTENTIAL ENERGY?

• A BALL TRAVELING AT 10 M/S
• A COMPRESSED SPRING
• WATER BEING STORED AT A WATER DAM
• A STRETCHED RUBBER BAND

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WHAT ANOTHER NAME FOR THERMAL ENERGY?

• HEAT ENERGY
• ITS SIZE
• ITS POTENTIAL ENERGY
• ITS MECHANICAL ENERGY

Every living organism is made up of one or more cells

• True
• False

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