Energy on Earth

Front

What is energy transformation?

Back

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

Front

What is a key characteristic of energy transformations?

Back

Energy is continuously transferred and transformed.

Front

What are secondary sources of energy?

Back

Secondary sources of energy are forms of energy that are derived from primary sources, used to store, move, and deliver energy.

Front

What is the effect of Earth's surface being heated unequally?

Back

It powers atmospheric and oceanic motion.

Front

What is convection in the atmosphere?

Back

Convection is the process by which warmer, less dense air rises and cooler, denser air sinks, powering the circulation of the atmosphere.

Front

What happens to the density of air or water when it is heated?

Back

The density of air or water decreases when it is heated.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion.

Front

What is the greenhouse effect?

Back

The greenhouse effect is the warming of Earth's surface due to the trapping of heat by greenhouse gases in the atmosphere.

Front

What is renewable energy?

Back

Renewable energy is energy that is collected from resources that are naturally replenished, such as sunlight, wind, and water.