Energy Review

Front

What is energy?

Back

Energy is the ability to do work or cause change. It exists in various forms, including kinetic, potential, thermal, chemical, and more.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion. It depends on the mass and speed of the object.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state. For example, a marble at the top of a hill has gravitational potential energy.

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance. It is often associated with heat.

Front

What is chemical energy?

Back

Chemical energy is the energy stored in the bonds of chemical compounds, like food or fuel. It is released during a chemical reaction.

Front

What is a food chain?

Back

A food chain is a sequence that shows how energy and nutrients flow from one organism to another in an ecosystem.

Front

What is the role of the sun in a food chain?

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The sun is the primary source of energy for most food chains. It provides energy for plants, which are the primary producers.

Front

What happens to energy when water is heated?

Back

When water is heated, chemical energy from the fuel transforms into thermal energy, which increases the water's temperature.

Front

What is the relationship between potential and kinetic energy?

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Potential energy can be converted into kinetic energy. For example, when a marble rolls down a hill, its potential energy decreases while its kinetic energy increases.

Front

What is an ecosystem?

Back

An ecosystem is a community of living organisms interacting with their environment, including both biotic (living) and abiotic (non-living) components.