There Are Different Types of Energy

Question 1

What is energy?

Answer 1

Energy is the ability to do work, all objects have energy.

Question 2

What another name for heat energy?

Answer 2

Thermal Energy

Question 3

How is heat energy generated?

Answer 3

Through friction, e.g. rubbing our hands together.

Question 4

Why does life exist on earth?

Answer 4

Our planet allows the right amount of electromagnetic radiation to enter our atmosphere.

Question 5

What is the main source of light and energy?

Answer 5

The sun.

Question 6

How light energy move around?

Answer 6

Small pockets called photons.

Question 7

What cells transform light energy sourced from the sun into electricity?

Answer 7

Solar cells.

Question 8

What are photons?

Answer 8

Discrete amounts of electromagnetic radiation.

Question 9

What is electromagnetic radiation?

Answer 9

Radiation made up of electric and magnetic fields and travels in waves.

Question 10

Heat energy is commonly made by __________ or _________.

Answer 10

Burning chemicals/electrical devices.

Question 11

How does heat energy transfer?

Answer 11

From hot to cool.

Question 12

What is electrical energy?

Answer 12

Energy that comes from the flow of electrical charge.

Question 13

What is sound energy produced from?

Answer 13

Vibrations.

Question 14

What are vibrations?

Answer 14

Tiny movements back and fourth. They occur in gases, liquids and solids.

Question 15

What is kinetic energy?

Answer 15

The energy of movement.

Question 16

What energy does a car possess when its moving?

Answer 16

Kinetic.

Question 17

Car A is moving at 20km/hr and Car B is moving at 30km/hr. Which one possesses more kinetic energy? Account for your answer.

Answer 17

Car B as objects that move faster or the more mass it has, the greater the kinetic energy.

Question 18

Do things that can’t be seen by the naked eye still have kinetic energy? E.g.an atom.

Answer 18

Yes.