energy

Question 1

potential energy

Answer 1

when something has stress or a charge in it and has the potential to make other types of energy

Question 2

kenetic energy

Answer 2

the energy that is made when an object is in motion

Question 3

conduction:

Answer 3

transfer of heat through collisions between particles

Question 4

insulators

Answer 4

a material that is a poor conductor of heat

Question 5

convection

Answer 5

transfer of heat through the flow of particles

Question 6

radiation

Answer 6

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

Question 7

radiant heat

Answer 7

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

Question 8

reflected

Answer 8

bounced off

Question 9

transmitted

Answer 9

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

Question 10

absorbed

Answer 10

taken in

Question 11

mechanical

Answer 11

mechanical energy is the sum of potential energy and kinetic energy. It is the energy associated with the motion and position of an object.

Question 12

nuclear

Answer 12

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

Question 13

thermal

Answer 13

Thermal energy is the internal energy of an object due to the kinetic energy of its atoms and/or molecules

Question 14

movement

Answer 14

In physics, the kinetic energy of an object is the energy that it possesses due to its motion

Question 15

sound

Answer 15

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

Question 16

rotational

Answer 16

The angular acceleration is equal to the final angular velocity divided by the time and the average angular velocity is equal to half the final angular velocity

Question 17

light

Answer 17

It is formed through chemical, radiation, and mechanical means

Question 18

gravitational energy

Answer 18

Gravitational energy is the potential energy held by an object because of its high position compared to a lower position

Question 19

elastic energy

Answer 19

Elastic energy is the potential mechanical energy stored in the configuration of a material or physical system as work is performed to distort its volume or shape

Question 20

efficiency

Answer 20

the state or quality of being efficient.

Question 21

deciduous

Answer 21

describes plants that lose their leaves during autumn and winter

Question 22

luminous

Answer 22

releasing its own light

Question 23

incandescent

Answer 23

describes objects that emit light when they are hot

Question 24

bioluminescent

Answer 24

describes living things that release light energy

Question 25

non-luminous

Answer 25

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

Question 26

scattered

Answer 26

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

Question 27

visible spectrum

Answer 27

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

Question 28

dispersion

Answer 28

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

Question 29

electromagnetic radiation

Answer 29

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

Question 30

electromagnetic spectrum

Answer 30

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

Question 31

radio waves

Answer 31

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

Question 32

infra-red radiation

Answer 32

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

Question 33

ultraviolet radiation

Answer 33

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

Question 34

X-rays

Answer 34

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

Question 35

gamma rays

Answer 35

high energy electromagnetic radiation produced during nuclear reaction

Question 36

vibrations

Answer 36

repeated fast, back-and-forth movements

Question 37

compression

Answer 37

the process of pushing a material into itself

Question 38

frequency

Answer 38

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

Question 39

hertz

Answer 39

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

Question 40

pitch

Answer 40

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

Question 41

wavelength

Answer 41

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

Question 42

amplitude

Answer 42

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

Question 43

reverberation

Answer 43

the longer-lasting sound caused by repeated reflection from hard surfaces