24-25 Energy Study Guide

Front

What is wind energy?

Back

Wind energy is the energy obtained from the wind, which can be converted into mechanical energy using windmills or turbines.

Front

What are the three main energy transformations in a windmill?

Back

Wind energy is transformed into mechanical energy, which is then transformed into electrical energy.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion, which depends on its mass and velocity.

Front

What is potential energy?

Back

Potential energy is the stored energy of an object due to its position or state, such as gravitational potential energy.

Front

How does a pendulum demonstrate energy transformation?

Back

A pendulum converts potential energy at its highest point to kinetic energy at its lowest point and back again.

Front

Why is surface ocean water warmer than deep ocean water?

Back

Surface ocean water absorbs more energy from the sun, making it warmer than the deeper layers.

Front

What is chemical energy?

Back

Chemical energy is the energy stored in the bonds of chemical compounds, like batteries.

Front

What is electrical energy?

Back

Electrical energy is the energy caused by the movement of electrons through a conductor.

Front

What happens to energy in a circuit?

Back

Energy is transformed from chemical energy in the battery to electrical energy in the circuit, and then to light and heat energy in the bulb.

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the energy an object possesses due to its height above the ground.