Y7-Energy

Question 1

Magnetic

Answer 1

Attraction or repulsión of magnets

Question 2

Electrostatic

Answer 2

Attraction or repulsion between opposite charges

Question 3

Thermal

Answer 3

Stored in hot things(the hotter=more energy)

Question 4

Kinetic

Answer 4

Stored in moving objects

Question 5

Chemical

Answer 5

Food, fuels or batteries

Question 6

Elastic

Answer 6

Stretched, squashed or twisted

Question 7

Find the energy transfer

Flame—>Water
Chemical —> thermal

Answer 7

Heating

Question 8

Find the energy transfer

Man —>climbs to the top of a hill
Chemical—>gravitational

Answer 8

Mechanical

Question 9

Gravitational(GPA)

Answer 9

Objects higher up=more energy

Question 10

Law of conservation of energy

Answer 10

Energy can’t be created or destroyed. It can only be transferred from one store to another.

Question 11

How do we measure energy

Answer 11

Joules

Question 12

Convert Jouls—>KiloJouls

Answer 12

/1000

Question 13

What do living things need energy for

Answer 13

For all life processes(mrs gren)

Question 14

1kj =

1000J=

Answer 14

1KJ = 1000J
Joules
Kilojoules

Question 15

Find the energy transfer

Ball on the top of a bench—>floor(pushed)—>bounces up
Gravitational—>kinetic(falls)—>elastic

Answer 15

Mechanical, heating and sounds(slows down(friction))

Question 16

How do you measure energy in food?

Answer 16

Joules
Kilojoules
Kcal

Question 17

How do all food chains begin?

Answer 17

Producer

Question 18

Oil and gas formation

Answer 18

Dead fish and plants fall to bottom of the ocean
Layers of sand and rock accumulate over the rests
Millions of years later those rests transformed into oil and gas due to the heat and pressure.

Question 19

How to you draw the arrow in a food chain?

And the order of the food chain?

Answer 19

Producer —> Primary consumer—>
(Herbivore or carnivore)

You draw the arrow in the way the energy flows

Question 20

Where do plant get their energy from, and which store is it?

Answer 20

Photosynthesis
From the sun
Chemical.

Question 21

Coal formation?

Answer 21

Dead trees fall in to a swamp.

Over millions of years ,heat+pressure turn them in to coal.

Question 22

How is it called when you have too much fat on your body

Answer 22

Obese

Question 23

How is called when you have too little fat

Answer 23

Malnurished

Question 24

Get trolled?

Answer 24

Yes!!!

Question 25

What is the transfer?

Chemical—> Thermal—> Kinetic—> Whatever you use the electricity for…

Answer 25

1) heating
2) kinetic
3) electricity