Energy

Question 1

Potential

Answer 1

Energy that has the potential to do work and so the energy is stored

Question 2

Kinetic

Answer 2

Energy due to the motion of an object

Question 3

Sound

Answer 3

Energy carried by the air in a room

Question 4

Light

Answer 4

Energy that may be released

Question 5

Heat

Answer 5

Energy that causes objects to gain temperature

Question 6

Electrical

Answer 6

Energy supplied to homes by power lines

Question 7

Nuclear

Answer 7

Energy stored in the nucleus of atoms that can release energy slowly

Question 8

Chemical

Answer 8

Energy stored in chemicals that, when reacted together such as in burning reactions, release heat, sound or light

Question 9

Elastic

Answer 9

Energy stored by an elastic object that is stretched

Question 10

Gravitational

Answer 10

Potential energy of an object elevated above the

ground

Question 11

Conduction

Answer 11

Transfer of heat through collisions between particles

Question 12

Insulators

Answer 12

A material that is a poor conductor of heat

Question 13

Convection

Answer 13

Transfer of heat through the flow of particles

Question 14

Radiation

Answer 14

A method of heat transfer that does not require particles to transfer heat from one place to another

Question 15

Mechanical

Answer 15

Made, performed, or operated

Question 16

Thermal

Answer 16

It is the internal energy of an object due to the kinetic energy

Question 17

Movement

Answer 17

The act or process of moving people or things from one place or position to another.

Question 18

Rotational

Answer 18

The action or process of rotating on or as if on an axis or center

Question 19

Law Of Convention

Answer 19

States that the total amount of energy remains constant in an isolated system

Question 20

Efficiency

Answer 20

The state or quality of being efficient

Question 21

Density

Answer 21

Density is a measure of mass per unit of volume

Question 22

Reflected

Answer 22

Bounced off

Question 23

Transmitted

Answer 23

Passed through something, such as light or sound passing through air

Question 24

Absorbed

Answer 24

Taken in

Question 25

Deciduous

Answer 25

Describes plants that lose their leaves during autumn and winter

Question 26

Luminous

Answer 26

Releasing its own light

Question 27

Incandescent

Answer 27

Describes objects that emit light when they are hot

Question 28

Bioluminescent

Answer 28

Describes living things that release light energy

Question 29

Non-luminous

Answer 29

Describes objects that do not emit their own light, but can be seen by reflected light

Question 30

Scattered

Answer 30

Describes light sent in many directions by small particles within a substance

Question 31

Visible spectrum

Answer 31

Different colours that combine to make up white light; they are separated in rainbows

Question 32

Dispersion

Answer 32

Separation of the colours that make up white light. Each colour is bent differently when it enters or leaves a glass prism.

Question 33

Electromagnetic radiation

Answer 33

The radiant energy such as radio waves, infrared, visible light, X-rays and gamma rays released by magnetic or electric fields

Question 34

Electromagnetic spectrum

Answer 34

Complete range of wavelengths of energy radiated as electric and magnetic fields

Question 35

Radio waves

Answer 35

Low energy electromagnetic waves with a much lower frequency and longer wavelength than visible light

Question 36

Infra-red radiation

Answer 36

Low energy electromagnetic waves with a much lower frequency and longer wavelength than visible light

Question 37

Ultraviolet radiation

Answer 37

Invisible radiation similar to light but with a slightly higher frequency and more energy

Question 38

X-rays

Answer 38

High energy electromagnetic waves that can be transmitted through solids and provide information about their structure

Question 39

Gamma rays

Answer 39

High energy electromagnetic radiation produced during nuclear reaction

Question 40

Vibrations

Answer 40

Repeated fast, back-and-forth movements

Question 41

Compression

Answer 41

The process of pushing a material into itself

Question 42

Rarefactions

Answer 42

In sound waves, the layers of air particles that are spread apart

Question 43

Sound waves

Answer 43

Vibrations of particles in the air

Question 44

Frequency

Answer 44

Number of vibrations in one second, or the number of wavelengths passing in one second

Question 45

Hertz

Answer 45

Unit of frequency Hz

Question 46

Pitch

Answer 46

The highness or lowness of a sound. The pitch that you hear depends on the frequency of the vibrating air.

Question 47

Wavelength

Answer 47

Distance between two neighboring crests or troughs of a wave

Question 48

Amplitude

Answer 48

Maximum distance that a particle moves away from its undisturbed position

Question 49

Reverberation

Answer 49

Longer-lasting sound caused by repeated reflection from hard surfaces