fucking energy

Question 1

name the 8 energy stores

Answer 1

-magnetic
-thermal
-chemical
-kinetic
-electrostatic
-elastic
-gravitational
-nuclear

Question 2

what are the 4 types of energy transfer?

Answer 2

-mechanical work
-electrical work
-heating
-radiation

Question 3

name 2 ways that energy is dissipated

Answer 3

-when work is done against friction - thermal energy - 2 surfaces rub together
-sound energy (e.g electrical generators)

Question 4

name 3 ways you could improve efficiency?

Answer 4

-making machines from materials which reduce unwanted energy transfer
-improving the technology used
-using insulation

Question 5

in a sankey diagram, what does the width of the arrow represent?

Answer 5

the amount of energy

Question 6

name 3 ways to reduce unwanted energy transfer in homes and other buildings

Answer 6

-cavity wall
-loft insulation
-carpets

Question 7

define specific heat capacity

Answer 7

the energy required to raise one kilogram of a specific material by one degree celsius

Question 8

define specific latent heat

Answer 8

the energy required to change the state of one kilogram of a substance without changing its temperature

Question 9

define a moment

Answer 9

the turning effect of a force around a fixed point, called the pivot