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Flashcards in Energy Deck (49):
1

Potential

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

2

Kinetic

Energy due to the motion of an object

3

Sound

Energy carried by the air in a room

4

Light

Energy that may be released

5

Heat

Energy that causes objects to gain temperature

6

Electrical

Energy supplied to homes by power lines

7

Nuclear

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

8

Chemical

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

9

Elastic

Energy stored by an elastic object that is stretched

10

Gravitational

Potential energy of an object elevated above the
ground

11

Conduction

Transfer of heat through collisions between particles

12

Insulators

A material that is a poor conductor of heat

13

Convection

Transfer of heat through the flow of particles

14

Radiation

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

15

Mechanical

Made, performed, or operated

16

Thermal

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

17

Movement

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

18

Rotational

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

19

Law Of Convention

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

20

Efficiency

The state or quality of being efficient

21

Density

Density is a measure of mass per unit of volume

22

Reflected

Bounced off

23

Transmitted

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

24

Absorbed

Taken in

25

Deciduous

Describes plants that lose their leaves during autumn and winter

26

Luminous

Releasing its own light

27

Incandescent

Describes objects that emit light when they are hot

28

Bioluminescent

Describes living things that release light energy

29

Non-luminous

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

30

Scattered

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

31

Visible spectrum

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

32

Dispersion

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

33

Electromagnetic radiation

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

34

Electromagnetic spectrum

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

35

Radio waves

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

36

Infra-red radiation

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

37

Ultraviolet radiation

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

38

X-rays

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

39

Gamma rays

High energy electromagnetic radiation produced during nuclear reaction

40

Vibrations

Repeated fast, back-and-forth movements

41

Compression

The process of pushing a material into itself

42

Rarefactions

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

43

Sound waves

Vibrations of particles in the air

44

Frequency

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

45

Hertz

Unit of frequency Hz

46

Pitch

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

47

Wavelength

Distance between two neighboring crests or troughs of a wave

48

Amplitude

Maximum distance that a particle moves away from its undisturbed position

49

Reverberation

Longer-lasting sound caused by repeated reflection from hard surfaces