Energy

Question 1

What are the two major forms of energy?

Answer 1

The two major forms of energy are Kinetic energy and potential energy.

Question 2

What is potential energy?

Answer 2

Elastic potential energy is when an object has stored energy that can be released to create movement

Question 3

What is involved in nuclear energy?

Answer 3

Nuclear energy involves the splitting and joining of atoms.

Question 4

What is light energy?

Answer 4

Light energy is energy. It comes from sources such as light globes, the sun, and fires.

Question 5

What is a power source?

Answer 5

A battery or a power point in the wall (wall socket). It is the source of electrical potential energy.

Question 6

What is heat energy

Answer 6

Heat energy ( also known as thermal energy) is made from friction such as rubbing your hands together. It is can also be generated from chemical reactions

Question 7

What is non-renewable energy?

Answer 7

Non-renewable energy uses up resources that we cannot recreate. Some examples of this are gas to run our car and coal burned in power plants. Once they are used, they are gone forever.

Question 8

What is renewable energy?

Answer 8

A renewable energy source is one that can be replenished. Examples of this include hydropower from turbines in a dam, wind power from windmills, and solar power from the sun.

Question 9

Fill in the gap

Headphones convert electrical energy into ______ energy.

Answer 9

Sound

Question 10

Fill in the gap

Solar panels convert _____ energy into electrical energy

Answer 10

Light

Question 11

Fill in the gap

A phone charger converts electrical energy into a different _________ energy

Answer 11

Electrical

Question 13

What is a switch and what does it do?

Answer 13

A switch opens and closes the circuit. It breaks the conductive path when switched OFF and makes an electric circuit when switched ON.

Question 14

Which of the following statements is the most accurate?

• Like charges will attract each other.
• Unlike charges repel.
• Charged objects will attract uncharged objects.
• Opposite charges will repel.

Answer 14

Charged objects will attract uncharged objects.

Question 15

What type of energy does a trampoline use?

Answer 15

Potential kinetic energy.

Question 16

What is energy efficiency?

Answer 16

Energy efficiency is a measure of how much energy is transformed into the desired energy type.

Question 17

Fill in the gaps:
Energy comes in many different forms, such as thermal, light, sound, ______, electrical and potential energy. It can not be created or _________, but it can be transferred or ________ into a different type

Answer 17

1. heat
2. destroyed
3. transformed

Question 18

What is kinetic energy?

Answer 18

Kinetic energy is the scientific term for the energy of movement.

Question 19

What is electrical energy?

Answer 19

Electrical energy is energy that’s stored in charged particles within an electric field.

Question 20

How do we get Energy?

Answer 20

Fossil fuels,nuclear and renewable sources

Question 21

What energy does running use?

Answer 21

Running needs kinetic energy.

Question 22

What energy does a car use?

Answer 22

A car needs Chemical energy

Question 23

What energy does a plane use?

Answer 23

A plane requires Chemical energy

Question 24

Does kinetic energy remain the same if an object slows down or speeds up?

Answer 24

Yes, the level of kinetic energy remains the same…

Question 25

If an object is still does it have kinetic or potential energy?

Answer 25

Potential. The object has to be moving for it to have kinetic energy.