What would give an electromagnet more strength?

• A battery with a lot of stored energy

• A battery with not much store energy

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Light travels in a _______ path.

• curvy

• bumpy

• straight

• orbital

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Why is there no sound in space?

• Space has too many particles for sound

• Space is a vacuum with not many particles to travel on

• Space is too cold for sound to travel

• Light cannot travel in space either

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How does sound energy travel?

• straight line

• in waves

• in beams

• in pulses

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What is the transfer of energy with the pom pom launcher?

• sound energy to light energy

• thermal energy to kinetic energy

• kinetic energy to sound energy

• chemical energy to nuclear energy

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Which of these materials is the best conductor of heat?

• Oak wood

• brick

• water

• Aluminum

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The Sun's heat travel to the Earth to warm up the ground is an example of what?

• convection

• conduction

• electrical energy

• radiation

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The path in which an electrical current flows is what?

• circle

• circuit

• insulator

• conductor

Which example shows how a light would be used to warm up fish in a fishtank?

• The light helps the fish see

• The light makes food for the fish

• The light does not help warm up the fish

• The light transfers thermal energy to the water

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