p1 energy stores

Question 1

There are 7 stores of energy
What are they

Answer 1

Kinetic energy
Thermal energy
Elastic potential energy
Gravitational potential energy
Chemical energy
Magnetic energy
Electrostatic energy

Question 2

What is the law of conservation of energy

Answer 2

Energy cannot be created or destroyed, only transferred from one store to another

Question 3

There are 4 transfers of energy
What are they

Answer 3

Mechanical working
Electrical working
Heating by particles
Heating by radiation

Question 4

What is the equation for work done

Answer 4

W=Fxs

Question 5

What does “W” stand for in work done

Answer 5

Work

Question 6

What does “F” stand for in work done

Answer 6

Force

Question 7

What does “s” stand for in work done

Answer 7

Distance

Question 8

What are the measurement’s of the equation for work done

Answer 8

Joules Newtons meters

Question 9

How would you set up a work done triangle

Answer 9

W
Fxs

Question 10

What is mass

Answer 10

Mass is a measure of the physical amount of material in an object

Question 11

What is weight

Answer 11

Weight is a measure of the force from gravity acting on a mass

Question 12

What is the equation for calculating weight and mass

Answer 12

W
mxg

Question 13

What does “W” stand for in weight and mass

Answer 13

Weight

Question 14

What does “m” stand for in weight and mass

Answer 14

mass

Question 15

What does “g” stand for in weight and mass

Answer 15

gravity

Question 16

What is the gravity on earth

Answer 16

9.8

Question 17

What are the measurements of weight, mass and gravity

Answer 17

Newtons, kg, N/per kg

Question 18

What is the equation for gravitational potential energy

Answer 18

Eg=mxgxh

Question 19

An object which is _______ has more gravitational potential energy

Answer 19

higher

Question 20

An object with a higher _____ will be storing more GPE

Answer 20

mass

Question 21

What is the triangle for calculating GPE

Answer 21

eg
mxgxh

Question 22

What are the measurements in the GPE equation

Answer 22

Energy, kg, n/kg , m

Question 23

What is the equation for kinetic energy

Answer 23

Ek=0.5xmxv2

Question 24

what does “v” stand for in kinetic energy

Answer 24

velocity

Question 25

What does “m” stand for in kinetic energy

Answer 25

mass

Question 26

how would you set up a kinetic energy equation triangle

Answer 26

Ek 0.5 x m x v2

Question 27

how do you calculate velocity

Answer 27

v= distance /time

Question 28

What is the equation for elastic potential energy

Answer 28

Ee=0.5x k x e2

Question 29

What does “k” stand for in elastic potential energy

Answer 29

spring constant

Question 30

What does “e” stand for in elastic potential energy

Answer 30

extension

Question 31

What is the equation for efficiency

Answer 31

Useful output/ total output

Question 32

energy can be _____ or wasted

Answer 32

useful

Question 33

Friction always causes energy to move to the ____ store

Answer 33

thermal

Question 34

input energy = _____________ + wasted output energy

Answer 34

useful output energy

Question 35

Efficiency must always be smaller than what number

Answer 35

1