Topic 10: Energy

Question 1

What is the Law of Conservation of Energy

Answer 1

The law that states Energy can’t be created or destroyed

Question 2

What is Energy?

Answer 2

Anything “that can do work”

Question 3

What is Gravitational?

Answer 3

The potential Energy of an object off the ground

Question 4

What is Chemical?

Answer 4

Energy stored in chemical that when react make burning reactions, sound or produce heat

Question 5

What is Elastic?

Answer 5

Energy stored by an elastic object like an elastic or trampoline

Question 6

What is Nuclear?

Answer 6

Energy stored in the nucleus of atoms

Question 7

What is Electrical?

Answer 7

Energy supplied to homes to power appliances and machines

Question 8

What is Kinetic?

Answer 8

Energy possessed by moving objects

Question 9

What is Heat?

Answer 9

Energy that causes gain in temperature

Question 10

What is light?

Answer 10

Energy that may be released

Question 11

What is Sound?

Answer 11

Energy detected by the ear

Question 12

What is Efficiency?

Answer 12

The amount of energy supplied to a device

Question 13

What is Conduction?

Answer 13

The transfer through collisions between particles

Question 14

What is Deciduous?

Answer 14

Tree that loses its leaves in autumn and winter but regain them in spring and summer

Question 15

What is Luminous?

Answer 15

Something that releases its own light

Question 16

What is Incandescent?

Answer 16

Light that is let off with heat

Question 17

What is Bioluminescent?

Answer 17

Living things that let off light

Question 18

What is Scattered?

Answer 18

A way of describing the direction of light

Question 19

What is a Visible Spectrum?

Answer 19

Different colours combined to make white light

Question 20

What is Dispersion?

Answer 20

The separation of colours that make white light

Question 21

What is Electromagnetic Radiation?

Answer 21

Energy such as infrared, invisible light, X-ray, radio waves and gamma rays released by magnetic or electric fields

Question 22

What is a Electromagnetic Spectrum?

Answer 22

A range of wavelengths of energy radiated as electric or magnetic fields.

Question 23

What are Radio Waves?

Answer 23

Low energy electromagnetic waves with low frequency and long wavelength

Question 24

What is Infrared Radiation?

Answer 24

Invisible radiation emitted by warm objects

Question 25

What are Rays?

Answer 25

Narrow beams of light

Question 26

What is Concave?

Answer 26

A inward curved lens

Question 27

What is Convex?

Answer 27

An outward curved lens

Question 28

What is a Focal Point?

Answer 28

The point where light rays close in

Question 29

What are Vibrations?

Answer 29

Repeated fast, back and forth movement

Question 30

What is Compression?

Answer 30

The process of pushing a material into itself

Question 31

What are Rarefactions?

Answer 31

The layers of air particles that are spread apart

Question 32

What are sound waves

Answer 32

Vibrations in the air

Question 33

What is Frequency?

Answer 33

Number of vibrations or wavelengths in one second

Question 34

What are Hertz?

Answer 34

The unit used for frequency

Question 35

What is Pitch?

Answer 35

The high or low part of sound

Question 36

What is Wavelength?

Answer 36

The distance between two neighbouring crests or troughs of a wave.

Question 37

What is Amplitude?

Answer 37

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