Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

science > energy > Flashcards

energy Flashcards

1
Q

potential energy

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

kinetic energy

A

Energy due to the motion of an object

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

conduction

A

transfer of heat through collisions between particles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

convection

A

transfer of heat through the flow of particles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

radiation

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

radiant heat

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

reflected

A

bounced off

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

transmitted

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

sound

A

energy carried by air in the room

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

heat

A

energy that causes objects to gain temperature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

light

A

energy that may be released

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

electrical

A

energy supplied to homes by power lines

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

nuclear

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

chemical

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

elastic

A

energy stored by an elastic object that is stretched

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

gravitational

A

potential energy on an object elevated above the ground

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

mechanical

A

the energy associated with the movement and position of things

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Law of Conservation of Energy

A

a law that states that energy cannot be made or lost. However, energy can be transformed from one type to another or transferred from one object to another.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

efficiency

A

q

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

density

A

it is how much energy is stored in a given system

21
Q

deciduous

A

describes plants that lose their leaves during autumn and winter

22
Q

conductor

A

poor insulator, it is also an object that transmits heat or electricity

23
Q

insulator

A

poor conductor, are those that contain air that is restricted from moving. they also restrict heat loss from both conduction and convection.

24
Q

luminous

A

it is releasing its own light

25
Q

incandescent

A

it describes objects that emit light when they are hot

26
Q

bioluminescent

A

it describes living things that release light energy

27
Q

non-luminous

A

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

28
Q

scattered

A

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

29
Q

visible spectrum

A

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

30
Q

dispersion

A

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

31
Q

electromagnetic radiation

A

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

32
Q

electromagnetic spectrum

A

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

33
Q

radio waves

A

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

34
Q

infra-red radiation

A

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

35
Q

ultraviolet radiation

A

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

36
Q

X-rays

A

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

37
Q

gamma rays

A

high energy electromagnetic radiation produced during a nuclear reaction

38
Q

vibrations

A

it repeats faster, back-and-forth movements

39
Q

compression

A

the process of pushing a material into itself

40
Q

rarefactions

A

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

41
Q

sound waves

A

vibrations of particles in the air

42
Q

frequency

A

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

43
Q

hertz

A

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

44
Q

pitch

A

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

45
Q

wavelength

A

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

46
Q

amplitude

A

a maximum distance that a particle moves away from its undisturbed position

47
Q

reverberation

A

longer-lasting sound caused by repeated reflection from hard surfaces

48
Q

absorbed

A

taken in

science (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions