Energy, Transformations 23

Front

What is chemical energy?

Back

Chemical energy is the energy stored in the bonds of chemical compounds, like food, batteries, and fuels. It is released during a chemical reaction.

Front

How does potential energy change when an object falls?

Back

As an object falls, its potential energy decreases while its kinetic energy increases, converting potential energy into 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, an apple hanging from a tree has gravitational potential energy.

Front

What energy transformation occurs when a skateboarder goes downhill?

Back

The skateboarder transforms potential energy into kinetic energy as they descend.

Front

What happens to energy in an electrical oven?

Back

In an electrical oven, electrical energy is transformed into thermal energy when the oven is powered on.

Front

What is the role of a hairdryer in energy transformation?

Back

A hairdryer converts electrical energy into thermal energy to dry hair.

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

Give an example of energy transformation in a battery-powered device.

Back

In a battery-powered device, chemical energy stored in the battery is transformed into electrical energy to power the device.

Front

What is thermal energy?

Back

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