Energy for Practical Use

What type of energy source does a solar panel use?

• sound
• mechanical
• thermal
• light

A lamp uses electrical energy to produce what two other kinds of energy?

• mechanical and sound
• heat and mechanical
• light and sound
• heat and light

Headphones get electrical energy from the device to which they are attached. The headphones change this energy into what other kind of energy?

• sound
• light
• thermal
• mechanical

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A form of energy you can feel from the sun.

• light 
• wind 
• heat 
• darkness 

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The energy of motion is _____________.

• kinetic energy 
• potential energy 

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The ability to do work or cause change

• Solar
• Energy
• Light Energy
• Laser

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The Law of Conservation of Energy states:

• Energy can created or destroyed but not transformed 
• Energy cannot be created or destroyed, it can only transformed
• Energy can't be created, destroyed or transformed

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According to the Law of Conservation of energy, the amount of energy before and after a reaction must be the same. Which statement below is true?

• The total amount of energy is conserved
• The total amount of energy is less after a reaction
• The total amount of energy is more after a reaction

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Which energy transformation below matches?
A book falling?

• chemical to sound and heat
• kinetic to sound and heat
• electrical to sound and heat

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What forms of energy are important to have present when watching television?

• sound, thermal, and light
• electrical and sound
• electrical, light, and sound
• thermal and light