Cahpter 10 Transferring And Transforming Energy

Question 1

Energy

Answer 1

Describes anything that can do work

Question 2

Law of conservation of energy

Answer 2

Energy cannot be created or destroyed or destroyed only transferred

Question 3

Gravitational energy

Answer 3

Potential energy of an object elevated above the ground

Question 4

Elastic energy

Answer 4

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

Question 5

Chemical energy

Answer 5

Energy stored in chemical that when reacted together such as burning reactions realize heat sound or light

Question 6

Nuclear energy

Answer 6

Energy stored in the nucleus of atoms that releases energy slowly such as in a nuclear for quickly such as in a nuclear explosion

Question 7

Electrical energy

Answer 7

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

Question 8

Kinetic energy

Answer 8

Energy processed by objects that are moving

Question 9

Heat energy

Answer 9

Energy that causes objects to gain temperature

Question 10

Light energy

Answer 10

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

Question 11

Sound energy

Answer 11

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

Question 12

Potential energy

Answer 12

Stored energy that when realeaed is converted to other form such as kinetic sound heat or light energy

Question 13

Efficiency

Answer 13

A fraction of a energy supplied to a device as a useful energy.it is usually expressed as a percentage

Question 14

Conduction

Answer 14

Transfer of heat through collisions between particles

Question 15

Insulator

Answer 15

A material that is a poor conductor of heat

Question 16

Convection

Answer 16

Transfer of heat through the flow of particles

Question 17

Radiation

Answer 17

A method of heat that transfers that does not require particles to transfer

Question 18

Radiant heat

Answer 18

Heat transferred by radiation as from the sun to earth

Question 19

Reflected

Answer 19

Bounced off

Question 20

Transmitted

Answer 20

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

Question 21

Absorbed

Answer 21

Taken in

Question 22

Deciduous

Answer 22

Describing plants that lose there leaves during autumn or winter

Question 23

Luminous

Answer 23

Realising its own light

Question 24

Incandescent

Answer 24

Describes an object that light when it is hot

Question 25

Bioluminescent

Answer 25

Describes living things that realises light energy

Question 26

Non luminous

Answer 26

A object that does not produce light it self

Question 27

Scattered

Answer 27

Describe light sent in many directions by small particales in a substance

Question 28

Visible spectrum

Answer 28

Different colours that combine to create a white light this separates rainbows

Question 29

Dispersion

Answer 29

Separation of colours that make up white light,

Question 30

Electromagnetic radiation

Answer 30

A radiant energy such as radiation waves which is then realised by a magnetic force of electric field

Question 31

Electromagnetic spectrum

Answer 31

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

Question 32

Radio waves

Answer 32

Low energy electromagnetic waves with a much lower frequency no longer wavelength than visible light

Question 33

Infra-red radiation

Answer 33

Invisible radiation emitted by all warm objects

Question 34

Ultraviolet radiation

Answer 34

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

Question 35

X rays

Answer 35

Electromagnetic waves that can be transmitted through solids and provide information

Question 36

Rays

Answer 36

Narrow bean of light

Question 37

Concaves

Answer 37

Refer to a lenses that is curved donwards

Question 38

Conveys

Answer 38

Refers to a lens that is curved outwards

Question 39

Focal point

Answer 39

The point when the light rays close in towards a point

Question 40

Lateral inversion

Answer 40

Sideways reversal of images in a mirror

Question 41

Refraction

Answer 41

Change in the speed of light as it passes

Question 42

Normal

Answer 42

Line drawn perpendicular to a surface

Question 43

Image

Answer 43

Image of an object

Question 44

Vibration

Answer 44

Back and forth movement

Question 45

Compression

Answer 45

Process of pushing a material into itself

Question 46

Rarefactions

Answer 46

Particularly spread apart

Question 47

Sound waves

Answer 47

Vibrations of partials in the air

Question 48

Hertz

Answer 48

Unit of frequency

Question 49

Frequency

Answer 49

Number of vibrations in one secound

Question 50

Pitch

Answer 50

The highness and the lowness of a sound

Question 51

Wavelength

Answer 51

Distance between two neighbouring crest

Question 52

Amplitude

Answer 52

Maximum distance that a particle moves away

Question 53

Reverberation

Answer 53

Longer lasting sound