Physics Revision

What is energy measured in?

• joules
• amps
• volts
• watts

What are thermal power stations?

• Thermal power stations are used for water purification.
• Thermal power stations generate electricity using solar panels.
• Thermal power stations are facilities that generate electricity by converting heat energy from burning fuels into electrical energy.
• Thermal power stations are facilities that store energy from wind.

How are fossil fuels formed?

• Fossil fuels are created from volcanic eruptions.
• Fossil fuels are formed from the remains of ancient plants and animals subjected to heat and pressure over millions of years.
• Fossil fuels are generated by the photosynthesis of modern plants.
• Fossil fuels are formed from the decomposition of rocks.

Which of the following is a renewable energy source?

• Coal

• Natural gas

• Wind

• Oil

What are renewable resources?

• Materials that are always in limited supply, such as metals.
• Energy sources that are only available during specific seasons.
• Resources that cannot be replaced, like fossil fuels.
• Renewable resources are resources that can be replenished naturally, such as solar, wind, and hydro energy.

Is coal a renewble energy source?

• True
• False

Which of the following is considered a non-renewable resource?

• Natural gas

• Hydroelectric power

• Wind energy

• Solar energy

What is the main disadvantage of using fossil fuels?

• They are abundant and cheap.

• They produce greenhouse gases that contribute to climate change.

• They are renewable and sustainable.

• They have no impact on the environment.

What is conservation of energy?

• The conservation of energy is the principle that energy cannot be created or destroyed, only transformed.
• Energy can be created and destroyed.
• Energy can be transferred but not transformed.
• Energy is only found in physical forms.

What are energy stores?

• Energy stores are only found in living organisms.
• Energy stores are used to generate energy instantly.
• Energy stores are systems or substances that hold energy for later use.
• Energy stores are irrelevant to energy conservation.