Energies (Ms. Bird) Flashcards
True or false:
The radio is powered by sound energy.
True.
What is kinetic energy?
Kinetic energy is energy which a body possesses by virtue of being in motion.
Give an example of heat energy.
Fire.
What type of energy is a lightbulb powered by?
A lightbulb is powered by light energy.
If something has or is made of electricity, it is powered by a source of energy. Which one?
Electrical energy.
What is FUEL?
Fuel is something that can release heat energy.
True or false:
Burning fuel makes energy.
False.
Burning fuel does not make energy, it changes energy from one form to another.
Can energy be destroyed?
No.
Can you make energy?
No, you can only change it from one type to a different one.
Give three main examples of fossil fuels.
COAL, OIL and GAS.
In other words, they were made from fossils
What is the ultimate source of all our energy and support your answer by an example?
The sun is the ultimate source of all our energy.
Example: we often get energy from beef, beef comes from cows, cows eat grass, grass grows thanks to the SUN.
Are coal and oil renewable energy sources?
No, they are NON-RENEWABLE energy sources.
Is natural gas also a NON-RENEWABLE energy source?
Yes, like coal and oil.
True or false:
Non-renewable sources will eventually run out.
True, but we can make them last longer.
What can radiation cause? Why is it so dangerous?
Because it can cause cancer.
Sunlight is a constant renewable energy.
What does that mean?
It means it never slows down or runs out of power.
- What object do you need to extract energy from the sun?
You will need Solar Panels.
- Complete the sentence with one of these words:
WATER - ICE - OIL.
> The solar panels and solar cells absorb the sunlight to heat —–
> The solar panels and solar cells absorb the sunlight to heat WATER.
- Complete the two sentences with 2 of these 5 words:
CONDENSATION - EVAPORATION - PRECIPITATION - STEAM - FIRE
> The hot water then turns to — . This process is called —.
> The hot water then turns to STEAM. This process is called EVAPORATION.
- What is the steam then used for? What does it activate?
Steam is used to turn a turbine.
- And then? What does the turbine do, once it’s activated?
It turns a GENERATOR
