Practice: Energy Types, Kinetic & Potential

Front

What is chemical energy?

Back

Chemical energy is the energy stored in the bonds of chemical compounds, like atoms and molecules. It is released or absorbed during a chemical reaction.

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential energy and kinetic energy in an object. It is the energy associated with the motion and position of an object.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion. It depends on the mass of the object and the speed at which it is moving.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state. For example, an object at a height 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 the law of conservation of energy?

Back

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is an example of energy transformation?

Back

An example of energy transformation is when a battery (chemical energy) powers a flashlight (electrical energy to light energy).

Front

What happens during combustion?

Back

During combustion, chemical energy in fuels is transformed into thermal energy and light energy.

Front

What is the role of energy in physical changes?

Back

Energy is required to change the state of matter, such as melting ice (solid to liquid) or boiling water (liquid to gas).

Front

How does energy transfer occur?

Back

Energy transfer occurs when energy moves from one object or system to another, such as heat flowing from a hot object to a cooler one.