Unit 3 Energy Review

Which is an example of energy moving an object from place to place?

• water in a bowl

• wind blowing a grain of sand

• a batter ready to hit a baseball

• a drummer ready to hit a drum

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Which of the following can move energy from place to place?

• sound

• a moving baseball

• electric currents

• all of the above

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Which of these uses electric currents to move energy from place to place?

• a toaster

• a campfire

• a baseball bat

• the sun

How does energy change when a player kicks a soccer ball to score a goal?

• The foot gains most of the energy of motion

• The ball gains most of the energy of motion

• The ball loses energy

• Neither the ball nor the foot gains energy

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Energy can ______ from one object to another object.

• change

• transfer

• collide

• convert

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You are setting up an investigation to show the relationship between the speed of a moving object and its energy. Which ramp would result in the greatest amount of change?

• The highest ramp

• The lowest ramp

• A medium height ramp

• They will all show the same amount of speed

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A boy is testing the properties of magnets. He slides a magnet towards a paperclip and measures the distance at which the paperclip starts to move towards the magnet. Which magnet is the strongest?

• Bar Magnet

• Ring Magnet

• Disc Magnet

• Strip Magnet

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Engineers use magnets to design useful devices. Which of these devices uses magnets?

• a lamp

• a wheelbarrow

• a doorbell

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Three bar magnets are held together as you see above. What are the magnets going to look like when they are released?

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Which position of two magnets results in the greatest attraction between the magnets below?

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