Energy Change and Conservation

Front

What is energy change?

Back

Energy change refers to the transformation of energy from one form to another, such as from potential energy to kinetic energy.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion. It depends on the mass and speed of the object.

Front

What is potential energy?

Back

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

Front

What happens to potential energy as an object falls?

Back

As an object falls, its potential energy decreases while its kinetic energy increases.

Front

What is energy transfer?

Back

Energy transfer is the movement of energy from one place to another without changing its form.

Front

What is energy transformation?

Back

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

Front

Give an example of energy transformation in cooking.

Back

When boiling water, thermal energy from the stove transforms into kinetic energy in the water molecules, causing them to move faster and eventually boil.

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 type of energy is involved when wood burns?

Back

When wood burns, chemical energy is transformed into thermal energy (heat) and light energy (flames).

Front

How does energy change occur in a swing?

Back

In a swing, potential energy is highest at the top of the swing and transforms into kinetic energy as it swings down.