Chapter 10 - Energy

Question 1

Gravitational

Answer 1

Potential energy of an object elevated above the ground

Question 2

Elastic

Answer 2

Energy stored by an elastic object that is stretched such as spring or rubber band

Question 3

Chemical

Answer 3

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

Question 4

Nuclear

Answer 4

Energy stored in the nucleus of atoms that can release energy slowly, such as in a nuclear reactor, or quickly, such as in a nuclear explosion

Question 5

Electrical

Answer 5

Energy supplied to homes by powerlines and available to your appliances via power outlets in the home

Question 6

Kinetic

Answer 6

Energy possessed by something that is moving

Question 7

Heat

Answer 7

Energy that causes objects to gain temperature

Question 8

Light

Answer 8

Energy that may be released, for example, when an object is hot or by a nuclear reaction in a star

Question 9

Sound

Answer 9

Energy that carried by the air in the room and detected by the ear

Question 10

Decideous

Answer 10

Describes plants that lose their leaves during autumn or winter

Question 11

Luminous

Answer 11

releasing its own light

Question 12

Incandescent

Answer 12

describes objects that emit light when they are hot

Question 13

Bioluminescent

Answer 13

describes objects that emit light when they are hot

Question 14

Non-luminous

Answer 14

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

Question 15

Scattered

Answer 15

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

Question 16

Electromagnetic radiation

Answer 16

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

Question 17

Electromagnetic spectrum

Answer 17

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

Question 18

Visible Spectrum

Answer 18

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

Question 19

Dispersion

Answer 19

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

Question 20

Radio Waves

Answer 20

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

Question 21

Infra-red radiation

Answer 21

invisible radiation emitted by all warm objects. You feel infra-red radiation as heat.

Question 22

Ultraviolet radiation

Answer 22

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