Energy

Question 1

Kinetic Energy

Answer 1

A type of energy that is in motion

Question 2

Potential Energy

Answer 2

A type of energy with the potential to become kinetic

Question 3

Light Energy

Answer 3

Light energy is a type of kinetic energy with the ability to make types of light visible to human eyes.

Question 4

Nuclear

Answer 4

the energy released during nuclear fission or fusion, especially when used to generate electricity.

Question 5

Thermal

Answer 5

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

Question 6

Sound

Answer 6

Sound energy is a form of energy associated with the vibration of matter

Question 7

Electrical

Answer 7

Electrical energy is defined as an electric charge that lets work be accomplished

Question 8

Conduction

Answer 8

transfer of heat through collisions between particles

Question 9

Insulator

Answer 9

Something that conducts heat poorly

Question 10

convection

Answer 10

transfer of heat through the flow of particles

Question 11

Radiation

Answer 11

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

Question 12

Radiant heat

Answer 12

heat transferred by radiation, as from the sun to the Earth

Question 13

Reflect

Answer 13

Bounce off

Question 14

Transmitted

Answer 14

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

Question 15

absorbed

Answer 15

taken in

Question 16

Mechanical

Answer 16

It is the energy associated with the motion and position of an object.

Question 17

Movement

Answer 17

The way something moves

Question 18

Chemical

Answer 18

Energy stored in the bonds of chemical compounds.

Question 19

Elastic Potential

Answer 19

Elastic energy is the potential mechanical energy stored in something

Question 20

Density

Answer 20

Energy density is the amount of energy stored in a given system or region

Question 21

Gravitational Energy

Answer 21

Gravitational energy is the potential energy held by an object because of its high position

Question 22

Law of conservation of energy

Answer 22

The law of conservation of energy, a fundamental concept of physics, states that the total amount of energy remains constant in an isolated system.

Question 23

deciduous

Answer 23

describes plants that lose their leaves during autumn and winter

Question 24

Luminous

Answer 24

releasing its own light

Question 25

incandescent

Answer 25

describes objects that emit light when they are hot

Question 26

bioluminescent

Answer 26

describes living things that release light energy

Question 27

non-luminous

Answer 27

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

Question 28

scattered

Answer 28

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

Question 29

visible spectrum

Answer 29

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

Question 30

dispersion

Answer 30

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

Question 31

electromagnetic radiation

Answer 31

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

Question 32

electromagnetic spectrum

Answer 32

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

Question 33

radio waves

Answer 33

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

Question 34

infra-red radiation

Answer 34

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

Question 35

ultraviolet radiation

Answer 35

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

Question 36

X-rays

Answer 36

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

Question 37

gamma rays

Answer 37

high energy electromagnetic radiation produced during nuclear reaction

Question 38

vibrations

Answer 38

repeated fast, back-and-forth movements

Question 39

compression

Answer 39

the process of pushing a material into itself

Question 40

rarefactions

Answer 40

in sound waves, the layers of air particles that are spread apart (between compressions)

Question 41

sound waves

Answer 41

vibrations of particles in the air

Question 42

frequency

Answer 42

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

Question 43

hertz

Answer 43

unit of frequency; its abbreviation is Hz. One hertz is equal to one vibration every second.

Question 44

pitch

Answer 44

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

Question 45

wavelength

Answer 45

distance between two neighboring crests or troughs of a wave. This is the distance between two particles vibrating in step.

Question 46

reverberation

Answer 46

longer-lasting sound caused by repeated reflection from hard surfaces