NS GRADE 5

Question 1

false or true: energy is stored in fuels

Answer 1

true

Question 2

false or true: energy is stored in fuels from the sun

Answer 2

true

Question 3

true or false: fossils are non renewable resources

Answer 3

true

Question 4

true or false: examples or fossils fuels are gsbs, petrol, paraffin

Answer 4

true

Question 5

true or false: if any element in the combustion triangle is missing, burning cannot happen

Answer 5

true

Question 6

the ability to do something

Answer 6

energy

Question 7

energy needed to start a process

Answer 7

input energy

Question 8

material that burns or that can be set alight

Answer 8

fuel

Question 9

means burning

Answer 9

combustion

Question 10

the gas that supports combustion and keeps the fire going

Answer 10

oxygen

Question 11

need fuel, oxygen and heat to happen

Answer 11

the burning triangle

Question 12

the energy needed to set fuel alight or start a fire

Answer 12

heat

Question 13

energy obtained after being changed by a process

Answer 13

output energy

Question 14

a danger or risk that can be very harmful

Answer 14

hazard

Question 15

a measure taken to stop something from happening

Answer 15

prevention

Question 16

they prepare you to keep you safe in case of a fire

Answer 16

fire drills

Question 17

to put out a fire

Answer 17

extinguish

Question 18

name the input and output energy of a fuel

Answer 18

input: heat output -> heat/light/movement

Question 19

name the input and output energy of a torch

Answer 19

input: chemical energy, output: light

Question 20

Name the input and output energy of a solar panel

Answer 20

input light energy, output electricity

Question 21

name the input and output energy of running/falling water

Answer 21

input energy: movement output energy: electrical

Question 22

True or false: cells and battery store energy

Answer 22

true

Question 23

true or false: an electrical circuit needs a source of energy

Answer 23

true

Question 24

true or false: the bulb in a circuit shines when it is connected to a cell by 1 wire

Answer 24

False: must be 2 wires

Question 25

true or fase: in a torch circuit, electrical energy is transferred from the bulb to the cell

Answer 25

false: it is transferred from the cell to the bulb

Question 26

true or false: it is not safe to pull a plug out by the cord or cable

Answer 26

true

Question 27

what part of the catapult stores energy

Answer 27

the elastic band when streched/pulled

Question 28

how can you make the stone move in a catapult

Answer 28

when you release the elastic, the energy is transferred to movement.

Question 29

why does the stone in the catapult move move

Answer 29

the stored energy is changed to movement energy when you release the elastic

Question 30

where is the energy in a jack in the box stored

Answer 30

in the compressed spring

Question 31

where is the energy in a paper airplane stored (paper plane with an elastic band)

Answer 31

in the twisted or stretched elastic

Question 32

to squash something

Answer 32

compress

Question 33

to let something go

Answer 33

release

Question 34

to pull something or make it longer

Answer 34

stretch

Question 35

to wind something around an object

Answer 35

twist

Question 36

this is used to fire stones at something

Answer 36

catapult

Question 37

this is stored in a compressed spring

Answer 37

energy

Question 38

what can be eaten or burned to make heat, light, movement

Answer 38

stored energy