Energy Test

Front

How does energy transform from the sun to make fossil fuels?

Back

Energy from the sun is absorbed by plants, which convert it into chemical energy through photosynthesis. When these plants and other organisms die, they decay and become fossil fuels over millions of years.

Front

What type of energy can produce electricity without giving off greenhouse gases?

Back

Hydropower is a renewable energy source that generates electricity without emitting greenhouse gases.

Front

What is nuclear fission?

Back

Nuclear fission is the process of splitting the nucleus of an atom into smaller parts, releasing a significant amount of energy.

Front

What kind of heat transfer occurs when you hold a snowball in your hand and it melts?

Back

Conduction is the transfer of heat through direct contact, which occurs when the heat from your hand melts the snowball.

Front

What kind of heat transfer occurs when you get a sunburn?

Back

Radiation is the transfer of heat through electromagnetic waves, which is how the sun's energy reaches and warms your skin.

Front

What is the primary source of energy for the Earth?

Back

The primary source of energy for the Earth is the sun, which drives weather, climate, and photosynthesis.

Front

Define renewable energy.

Back

Renewable energy is energy that is collected from resources that are naturally replenished, such as sunlight, wind, rain, tides, waves, and geothermal heat.

Front

What is the difference between kinetic and potential energy?

Back

Kinetic energy is the energy of motion, while potential energy is stored energy based on an object's position or state.

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 geothermal energy?

Back

Geothermal energy is heat energy generated and stored in the Earth, which can be used for heating and electricity generation.