Physics paper 1 keywords and equations

?
  • Created by: GMay10
  • Created on: 13-05-18 11:35
System
An object or group of objects
1 of 38
Kinetic energy
0.5 x mass x (speed)2
2 of 38
Gravitational potential energy
Mass x gravitational field strength x height
3 of 38
Elastic potential energy
0.5 x spring constant x (extension)2
4 of 38
Internal energy
Total kinetic and potential energy of all the particles that make up a system
5 of 38
Specific heat capacity
The amount required to raise the temperature of 1 kg of the substance by 1 degree celcius
6 of 38
Change in thermal energy
Mass x specific heat capacity x temperature change
7 of 38
Dissipated
Spread out to the surroundings
8 of 38
Renewable
Can be replaced
9 of 38
Current
The flow of electrical charge
10 of 38
Charge flow
Current x time
11 of 38
Resistance
Measure of how it resists the flow of charge
12 of 38
Potential difference
The difference in electrical potential from one point in a circuit tot another
13 of 38
Potential difference
Current x resistance
14 of 38
Ohmic conductor
A resistor where the current is directly proportional to the potential difference at a constant temperature
15 of 38
Diode
A current through this will only flow in one direction
16 of 38
Power
Depends on the potential difference across it and the current flowing through it
17 of 38
Power
Potential difference x current or (current)2 x resistance
18 of 38
Direct current
Has a direct potential difference
19 of 38
Alternating current
Has an alternating potential differnence
20 of 38
Efficiency
The ratio of useful energy out to total energy in
21 of 38
Efficiency
Useful energy transfer / Total energy transfer or Useful power output / total power input
22 of 38
Energy transferred
Power x time or charge flow x potential difference
23 of 38
National grid
A system of cables and transformers linking power stations to homes and buisnesses
24 of 38
States of matter
Solids, liquids and gases
25 of 38
Incompressible
Cannot be squashed
26 of 38
Density
The mass per unit volume of a material
27 of 38
Density
Mass / volume
28 of 38
Energy for a change of state
Mass x specific latent heat
29 of 38
Latent heat of fusion
The energy needed for a substance to change from solid to liquid
30 of 38
Latent heat of vaporisation
The energy needed for a substance to change form liquid to gas
31 of 38
Sublimation
Something changes from a solid to a gas without changing to a liquid in the middle
32 of 38
Atomic number
The number of protons in an atom of an element
33 of 38
Isotopes
Atoms of the same element that have different numbers of neutrons
34 of 38
Activity of a radioactive source
The rate at which it decays
35 of 38
Contamination
The unwanted presence of materials containing containing radioactive atoms of other materials
36 of 38
Irradiation
The process of exposing an object to nuclear radiation
37 of 38
Half-life
The average time it takes for half of the nuclei to decay
38 of 38

Other cards in this set

Card 2

Front

0.5 x mass x (speed)2

Back

Kinetic energy

Card 3

Front

Mass x gravitational field strength x height

Back

Preview of the back of card 3

Card 4

Front

0.5 x spring constant x (extension)2

Back

Preview of the back of card 4

Card 5

Front

Total kinetic and potential energy of all the particles that make up a system

Back

Preview of the back of card 5
View more cards

Comments

jdellams

Report

they are all wrong your dumb

Similar Physics resources:

See all Physics resources »See all Paper 1 resources »