physics

Question 1

chemical energy

Answer 1

energy stored in food, fuel and batterys

Question 2

kinetic energy

Answer 2

anything moving e.g. a car

Question 3

thermal energy

Answer 3

hot objects e.g. hot water

Question 4

elastic potential energy

Answer 4

streached, twisted squashed or twisted matirails e.g. a rubber band

Question 5

gravitational potential energy

Answer 5

when an object is lifted up e.g. dropping a book

Question 6

nuclear energy

Answer 6

energy stored inside an atom

Question 7

law of conservation of energy

Answer 7

the law is that energy can not be destroyed or created only transferred

Question 8

equation for kinetic energy

Answer 8

ke=1/2 x m x v2 (squared)

Question 9

equation for graviational potential energy

Answer 9

gpe= m x g x h

Question 10

equation for efficiency

Answer 10

efficiency= usefull energy out/ total energy in

Question 11

what is a sankey diagram

Answer 11

used to show which energy transferres are useful and which are not usefull- allows us to see how efficient the energy transfere is