Exploring Human Energy Concepts in Chapter 2

What is the purpose of energy transfer diagrams?

• To show the flow of energy and its changes in a system

• To measure the amount of energy in a system

• To store energy for later use

• To create energy from nothing

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Where does a flashlight get its energy from?

• A battery

• Wind

• The sun

• Electricity

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What type of energy does a flashlight give off?

• Heat energy

• Light energy

• Sound energy

• Mechanical energy

What type of energy is stored in a battery?

• Kinetic energy

• Potential energy

• Thermal energy

• Chemical energy

What does it mean when energy is transferred?

• Energy moves from one object to another

• Energy changes from one type to another

• Energy is created from nothing

• Energy is destroyed

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What does it mean when energy is converted?

• Energy moves from one object to another

• Energy is destroyed

• Energy changes from one type to another

• Energy is created from nothing

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In the example of the flashlight, what type of energy conversion occurs?

• Thermal energy to light energy

• Chemical energy to sound energy

• Potential energy to light energy

• Kinetic energy to potential energy

According to key concept number four, can energy be created?

• No, energy can only be destroyed

• Yes, but only in certain conditions

• No, energy cannot be created

• Yes, energy can be created from nothing

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According to key concept number five, what can happen to energy?

• It can be transferred from one object to another

• It can be converted from one type to another

• Both A and B

• None of the above

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What is the main takeaway from the video about energy transfer and conversion?

• Energy can be created and destroyed

• Energy can only be transferred, not converted

• Energy can be transferred and converted but not created

• Energy is always in the form of light

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