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What is heat energy?

Back

Heat energy is a form of energy that is transferred between objects due to a temperature difference. It can be produced by friction, chemical reactions, or other processes.

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What causes heat energy to be produced when rubbing hands together?

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Heat energy is produced by friction when two surfaces rub against each other, causing the molecules in the materials to move faster and generate heat.

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NGSS.MS-PS1-4

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What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter. It is the total kinetic energy of the particles in an object.

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What is the difference between light energy and thermal energy?

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Light energy is the energy that is visible to the human eye and is produced by sources like the sun or light bulbs, while thermal energy is the energy that comes from the heat of an object.

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What is reflection of light?

Back

Reflection of light is the bouncing back of light rays when they hit a surface. This is why we can see images in mirrors or calm water.

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What is refraction of light?

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Refraction of light is the bending of light rays as they pass from one medium to another, such as from air to water.

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What is a conductor of electricity?

Back

A conductor of electricity is a material that allows electric current to flow through it easily, such as metals like copper and aluminum.

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What is an insulator?

Back

An insulator is a material that does not allow electric current to flow through it easily, such as rubber or glass.

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What is sound energy?

Back

Sound energy is the energy produced by vibrating objects, which creates sound waves that travel through air or other mediums.

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What happens when a rubber band is plucked?

Back

When a rubber band is plucked, it vibrates, causing the air around it to vibrate as well, which produces sound.

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