Types of energy

Question 1

What is meant by the term energy?

Answer 1

Energy is the ability to ‘do work or cause a change’

Energy cannot always be seen, but it is everywhere in both living and non-living things
You can hear energy as sound.
You can see energy as light.
You can feel it as wind.
You eat it in an apple.

Question 2

What is the unit for energy?

Answer 2

Energy is measured in Joule (J).
1000J = 1kJ

Question 3

The two main types of energy

Answer 3

Kinetic energy
potential energy

Question 4

Kinetic energy: description

Answer 4

Energy an object has due to its motion

eg. Feather falling, runner, train moving, ball rolling, theme park ride…

Question 5

Kinetic energy types

Answer 5

Sound
Light
Electrical
Heat

ALL CONSIST OF MOVEMENT

Question 6

potential energy

Answer 6

This is potential energy stored within the chemical bonds of an object.

Energy sitting in a battery

Question 7

Potential energy types:

Answer 7

Chemical Potential
Nuclear Energy
Elastic Potential Energy
Gravitational Potential Energy

All contain stored energy (no movement)

Question 8

Types of Energy

Answer 8

electrical, nuclear, gravitational potential, Elastic potential, chemical potential sound, heat

Question 9

elastic potential
description and Eg

Answer 9

Potential energy (stored energy) due to compression or expansion of an elastic object. i.e. a stretched or squashed object.

pulled rubber band

Question 10

Gravitational potential
description and Eg

Answer 10

Potential (stored) energy due to an object’s position (up high).
This is calculated by
GPE = mass x height x g
g = 10 and is the strength of the gravitational field on Earth.

Eg. Plane flying over head

Question 11

Chemical potential
description and Eg

Answer 11

This is potential energy stored within the chemical bonds of an object.

Question 12

electrical
description and Eg.

Answer 12

The energy caused by the movement of charges
Easily transported through power lines and converted into other useful forms of energy.

Question 13

Nuclear
Description and Eg.

Answer 13

Energy stored in the nucleus of atoms

Released only from nuclear reactions.
E.g. The sun and all of the stars. (Fusion)
E.g. Nuclear power plants and the Atomic bomb. (Fission)

Question 14

Sound
Description and Eg

Answer 14

A type of Kinetic energy (movement)

Sound waves are the movement of particles

Question 15

Light
descript and Eg

Answer 15

Anything luminous gives off light energy, like the sun, light bulbs , candles and glow worms

Question 16

heat
description and Eg

Answer 16

The heat energy of an object determines how active its atoms are.
A hot object is one whose atoms and molecules are excited and show rapid movement.