Energy - Chapter 9

Question 1

Electrical energy

Answer 1

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

Question 2

Gravitational potential energy

Answer 2

energy stored due to the height of an object

Question 3

chemical energy

Answer 3

energy that comes from chemical reactions

Question 4

elastic potential energy

Answer 4

material that can return to its original state after being stretched

Question 5

nuclear energy

Answer 5

energy stored at the centre of atoms

Question 6

efficiency

Answer 6

the usefulness of an energy

Question 7

Conduction

Answer 7

Heat transferred through collisions between particles

Question 8

Insulator

Answer 8

a conductor of heat

Question 9

Convection

Answer 9

heat transferred through the flow of particles

Question 10

Radiation

Answer 10

heat transfer that does not require paticles

Question 11

radiant heat

Answer 11

heat that is transferred by radiation

Question 12

reflected

Answer 12

bounced off

Question 13

transmitted

Answer 13

it is passed through something

Question 14

absorbed

Answer 14

taken in

Question 15

decidous

Answer 15

plants that lose leaves during winter and autumn

Question 16

luminous

Answer 16

releasing its own light

Question 17

incandescant

Answer 17

describes objects that emit light when they are hot

Question 18

bioluminescant

Answer 18

describes living things that release light energy

Question 19

non-luminous

Answer 19

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

Question 20

scattered

Answer 20

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

Question 21

Law of Conservation of energy

Answer 21

a law that claims that energy can’t be made or lost