Physics END OF YEAR EXAM Revision

Question 1

Types of energy/energy stores

Answer 1

Chemical, Kinetic, Gravitational Potential, Thermal, Nuclear, Elastic Potential, Magnetic, Electrostatic

Question 2

Chemical energy examples

Answer 2

Food, batteries

Question 3

Kinetic energy examples

Answer 3

Train moving, person falling, planets orbiting the Sun

Question 4

Gravitational potential energy examples

Answer 4

Plane flying, hot air balloons, jumping

Question 5

Thermal energy examples

Answer 5

Internal body heat, lamp, stars

Question 6

Nuclear energy examples

Answer 6

Nuclear bombs, stars

Question 7

Elastic potential energy example

Answer 7

Elastic bands

Question 8

Magnetic energy examples

Answer 8

Magnets, cars, washing machines

Question 9

Electrostatic energy example

Answer 9

Electricity

Question 10

Types of energy transfer

Answer 10

Heating, work done by force, work done by a current, radiation

Question 11

Efficiency

Answer 11

Useful energy out
————————-
Total energy in

Question 12

Gravitational potential energy

Answer 12

Mass x Gravitational Strength x Height

Question 13

Kinetic energy

Answer 13

1/2 x mass x velocity squared

Question 14

3 processes that heat can be transferred by

Answer 14

Conduction, convection, radiation

Question 15

Conduction is when heat is transferred by…

Answer 15

Vibrations

Question 16

Example of a good conductor

Answer 16

Metals

Question 17

Convection is for heat transfers with…

Answer 17

Liquids and gasses

Question 18

Conduction is for heat transfers with…

Answer 18

Solids

Question 19

Heat radiation is best with ??? coloured objects

Answer 19

Black/dark

Question 20

Conduction examples

Answer 20

The handle of a metal pan getting hot, wearing lots of layers of clothes in winter

Question 21

Convection examples

Answer 21

An electric fan heater heating a room, an oven cooking a turkey, a sea breeze, boiling a kettle

Question 22

Heat radiation examples

Answer 22

Toaster making toast, a white shirt keeping you cool in the summer, heat from a fire

Question 23

Example of a good insulator

Answer 23

Trapped air

Question 24

Solutions for heat loss in houses

Answer 24

Double glazing in windows, underfloor heating, loft insulation

Question 25

Renewable energy sources

Answer 25

Solar, wind, biomass, hydroelectric power, tidal, wave, geothermal

Question 26

Non renewable energy sources

Answer 26

Coal, oil, natural gas, nuclear

Question 27

Wind power positives

Answer 27

Renewable, can be put in the sea

Question 28

Wind power negatives

Answer 28

Ugly, kills birds, only works when there is wind

Question 29

Coal (as a source of energy) positives

Answer 29

Cheap, easy to find

Question 30

Coal (as a source of energy) negatives

Answer 30

Non renewable, not environmentally friendly

Question 31

Solar power positives

Answer 31

Renewable, can be put on houses

Question 32

Solar power negatives

Answer 32

Only works during the day, expensive

Question 33

Hydroelectric power positives

Answer 33

Renewable, can provide a lot of electricity

Question 34

Hydroelectric power negatives

Answer 34

Expensive, can cause flooding

Question 35

Oil (as a source of energy) positives

Answer 35

Easy to gather, easy to transport

Question 36

Oil (as a source of energy) negatives

Answer 36

Non renewable, oil spills cause death and damage to marine life

Question 37

Average walking speed

Answer 37

1.4 m/s

Question 38

Speed formula

Answer 38

Distance ———— Time

Question 39

Difference between vector and scalar quantities

Answer 39

A vector quantity is magnitude in a certain direction, scalar quantities have no direction

Question 40

Vector quantity examples

Answer 40

Velocity, all forces, displacement values

Question 41

Scalar quantity examples

Answer 41

Speed, time, mass, energy

Question 42

Speed

Answer 42

How fast an object is moving

Question 43

Velocity

Answer 43

Speed in a certain direction

Question 44

Distance

Answer 44

How far something has or will travel

Question 45

Displacement

Answer 45

Distance in one direction as the fastest route

Question 46

Acceleration formula

Answer 46

v-u —- t