Energy Transformations and Sun Energy

Front

What is energy transformation?

Back

Energy transformation is the process of changing energy from one form to another, such as from electrical energy to thermal energy.

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What is the greenhouse effect?

Back

The greenhouse effect is the warming of the Earth's surface due to the trapping of heat by greenhouse gases in the atmosphere.

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What are fossil fuels?

Back

Fossil fuels are natural substances formed from the remains of ancient plants and animals, used as a source of energy, such as coal, oil, and natural gas.

Front

What is the main source of energy for the Earth?

Back

The Sun is the main source of energy for the Earth, providing light and heat.

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What happens to some of the Sun's energy?

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About 30% of the Sun's energy is reflected back into space.

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What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter, often felt as heat.

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What is electrical energy?

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Electrical energy is the energy caused by the movement of electrons, commonly used to power devices.

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What type of energy transformation occurs in a toaster?

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In a toaster, electrical energy is transformed into thermal energy.

Front

What is light energy?

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Light energy is a form of energy that is visible to the human eye and is produced by the Sun and other light sources.

Front

What is an example of energy transformation in a flashlight?

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In a flashlight, chemical energy from batteries is transformed into electrical energy, which is then transformed into light energy.