Energies (Ms. Bird)

Question 1

True or false:

The radio is powered by sound energy.

Answer 1

True.

Question 2

What is kinetic energy?

Answer 2

Kinetic energy is energy which a body possesses by virtue of being in motion.

Question 3

Give an example of heat energy.

Answer 3

Fire.

Question 4

What type of energy is a lightbulb powered by?

Answer 4

A lightbulb is powered by light energy.

Question 5

If something has or is made of electricity, it is powered by a source of energy. Which one?

Answer 5

Electrical energy.

Question 6

What is FUEL?

Answer 6

Fuel is something that can release heat energy.

Question 7

True or false:

Burning fuel makes energy.

Answer 7

False.

Burning fuel does not make energy, it changes energy from one form to another.

Question 8

Can energy be destroyed?

Answer 8

No.

Question 9

Can you make energy?

Answer 9

No, you can only change it from one type to a different one.

Question 10

Give three main examples of fossil fuels.

Answer 10

COAL, OIL and GAS.

In other words, they were made from fossils

Question 11

What is the ultimate source of all our energy and support your answer by an example?

Answer 11

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.

Question 12

Are coal and oil renewable energy sources?

Answer 12

No, they are NON-RENEWABLE energy sources.

Question 13

Is natural gas also a NON-RENEWABLE energy source?

Answer 13

Yes, like coal and oil.

Question 14

True or false:

Non-renewable sources will eventually run out.

Answer 14

True, but we can make them last longer.

Question 15

What can radiation cause? Why is it so dangerous?

Answer 15

Because it can cause cancer.

Question 16

Sunlight is a constant renewable energy.

What does that mean?

Answer 16

It means it never slows down or runs out of power.

Question 17

1. What object do you need to extract energy from the sun?

Answer 17

You will need Solar Panels.

Question 18

2. Complete the sentence with one of these words:
   WATER - ICE - OIL.
   > The solar panels and solar cells absorb the sunlight to heat —–

Answer 18

> The solar panels and solar cells absorb the sunlight to heat WATER.

Question 19

3. 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 —.

Answer 19

> The hot water then turns to STEAM. This process is called EVAPORATION.

Question 20

4. What is the steam then used for? What does it activate?

Answer 20

Steam is used to turn a turbine.

Question 21

5. And then? What does the turbine do, once it’s activated?

Answer 21

It turns a GENERATOR