Energy Forms
Describe Light Energy
Light Energy:
Produced by the sun and very important for the atmosphere. Comes from natural and artificial sources.
When wood burns... chemical energy is transformed into ____ and ____ energy
Light and Thermal
What is the meaning of renewable energy?
What is the meaning of "non - renewable" resources
Resources that cannot be replaced once they have been used up.
What is the most used energy in the classroom?
Electrical
Describe thermal/heat energy.
Thermal/heat energy
The result of movement of tiny particles within an object. The faster they move, the more heat is generated.
A toaster transforms ___ energy into ____ energy.
1. Electrical 2. Thermal
Name 4 types of renewable energy
Wind, hydro, solar, geothermal, biomass
Name 3 examples of non-renewable resources
Coal, oil and gas
Name 2 examples of saving energy in school.
1. Turn off the lights when you leave the room.
2. Turn off the computer at the end of the day.
3. Close the windows to preserve heat.
4. Open the windows on a hot day instead of using air conditioning.
5. Turn off the tap.
6. Only flush the toilet when necessary.
The sum of potential and kinetic energy is _____
Mechanical energy
Describe the energy transformation when someone eats food before cycling on a bike
Chemical energy from food transforms into mechanical energy
What is the meaning of biomass?
A way to use tree, plants and rubbish to make energy.
What does the burning of fossil fuels cause?
Global warming/acid rain/air pollution
What is the most eco friendly way of going to school?
Walking
What is the difference between kinetic and potential energy?
Potential energy is stored energy. Kinetic energy is produced by movement.
Describe the energy transformation when you plug in and turn on a TV
Electrical energy -> Sound and Light energy
How does wind energy turn into electric energy?
Wind turbines produce mechanical energy which then turns into electric energy.
What is the biggest risk of nuclear power?
Radioactive waste
What is the least eco-friendly way of going to school? Why?
Cars because of the fossil fuels/ greenhouse gases they burn which pollute the air.
Describe chemical energy.
Chemical energy:
Stored energy that is released when a chemical reaction takes place. Found in food.
When you step off of a diving board to dive into the pool, _____ energy turns into _____ energy.
Can affect aquatic habitats.
What is uranium? What is it used for?
A non-renewable energy source that was formed millions of years ago. Nuclear power stations use it to turn chemical into electrical energy.
What should you do on a cold winter day in the classroom?