Energy

Question 1

What is energy

Answer 1

The ability to do something

Question 2

Law of conservation

Answer 2

Energy cannot be created or lost but It can be transformed or transferred

Question 3

Potential energy

Answer 3

Stored energy that gets converted

Question 4

Gravitational energy

Answer 4

Potential energy of an object elavated above the ground

Question 5

Elastic energy

Answer 5

Energy store by an elastic object that springs

Question 6

Chemical energy

Answer 6

Stored in chemicals that when reacted together result in an action

Question 7

Nuclear energy

Answer 7

Energy stored in the nucleus of atoms that slowly release energy

Question 8

Electrical

Answer 8

Energy made available by the flow of electric charge through a conductor

Question 9

Kinetic

Answer 9

Energy passed by loving object

Question 10

Heat

Answer 10

Energy that causes an object to gain temperature

Question 11

Light

Answer 11

Energy that may be released, for example when an object is hot

Question 12

Sound

Answer 12

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

Question 13

Efficiency

Answer 13

The fraction of energy supplied to a device as useful energy. Expressed as percentage

Question 14

Conduction

Answer 14

Transfer of heat through collision between particles

Happens when objects are touching

Question 15

Convection

Answer 15

Transfer of heat through flow of particles

Doesn’t require object to be touching

Question 16

Radiation

Answer 16

Method of heat transfer that doesn’t require particles to transfer heat from one place to another

Question 17

Transmitter

Answer 17

Clear objects that allow heat to pass through them. Their temperature doesn’t quickly rise

Question 18

Absorb

Answer 18

Dark colour objects absorb light and radiant heat. Temperature quickly increases

Question 19

Reflected

Answer 19

Shiny/light coloured object reflect light & heat away

Question 20

Calling instuoatioj

Answer 20

Made from fibreglass batts or loose rockwool. Contains pockets of air and reduced heat loss

Question 21

Cavity wall instillation

Answer 21

A foam sprayer in between the walls

Question 22

Heavy curtains

Answer 22

Trap a still layer of air

Question 23

Double glazing windows

Answer 23

Two sheets of glass with an air pocket

Question 24

Cavity bricks

Answer 24

Have small holes to reduce heat

Question 25

Luminous

Answer 25

Give off it’s own light

Question 26

Incandescent

Answer 26

Emits light because they are hot

Question 27

Bioluminescent

Answer 27

Emit light without getting hot

Question 28

Non-luminous

Answer 28

Don’t emit there own light

Question 29

How can you see light

Answer 29

We can see light because if the particle in its way. The light then scatters allowing us to see it

Question 30

Scattered

Answer 30

Describes light sent in many different directions by small particle within a substance

Question 31

Visible spectrum

Answer 31

Different cologne that combine to make white light

Question 32

Dispersion

Answer 32

Separation of the colours

Question 33

Electromagnetic radiation

Answer 33

The radiant energy such as radio waves, x-rays, infrared, visible light and ga,ma rays realised by magnetic or electric field

Question 34

Electromagnetic spectrum

Answer 34

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

Question 35

Radio waves

Answer 35

Low energy waves that are used to communicate over long distances through radio, tv, mobile and so-fo

Question 36

Infrared

Answer 36

Invisible to human eye emitted to all objects and is sensed as heat

Question 37

Ultraviolet radiation

Answer 37

Invisible to eye ,gives vitamin d, cause sunburn, more energy than visible light

Question 38

X-rays

Answer 38

Hugh energy electromagnetic waves that can be transmitted thirty solids and provides information about their structure

Question 39

Gamma rays

Answer 39

Emitted by radioactive substances and larger stars. Produced when energy is lost from the nucleus of an atom