physics test revision exam

Ashley Hadfield
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Mind Map on physics test revision exam, created by Ashley Hadfield on 02/28/2017.

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Ashley Hadfield
Created by Ashley Hadfield over 2 years ago
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physics test revision exam
1 changing of state + slh
1.1 liquid
1.1.1 random pattern
1.1.2 atleast 50% are touching one another
1.1.3 can be poured
1.1.4 medium force of attraction
1.2 solid
1.2.1 organized
1.2.2 strong forces of attraction
1.2.3 vibrate on the spot
1.3 gas
1.3.1 move in a rapid, random motion
1.3.2 weak force of attraction
1.3.3 unorganized/ don't touch
1.4 changing state
1.4.1 melting: solid - liquid
1.4.2 evaporation: liquid - gas
1.4.3 freezing: liquid - solid
1.4.4 condensation: gas - liquid
1.4.5 sublimation: solid - gas
1.4.6 deposition: gas - solid
1.5 density formula's
1.5.1 d= m/v
1.5.2 v = m/d
1.5.3 m = d * v
1.6 specific latent heat
1.6.1 specific latent heat of fusion
1.6.1.1 --->

Annotations:

  • Is the amount of energy needed to change the state of 1kg of a substance from a solid to a liquid
1.6.2 specific latent heat of vaporisation
1.6.2.1 --->

Annotations:

  • is the amount of energy needed to change the state of 1kg of liquid into a gas.
1.6.3 e = m x l
1.6.3.1 m = e/l
1.6.3.2 l = e/m
1.7 heating/ cooling curves
1.7.1 straight lines = changing state
1.7.2 portrait line = increasing temperature
2 pressure + energy
2.1 equation
2.1.1 f= p /a
2.1.2 p = f x a
2.1.3 a = p / f
2.2 physics in balloons
2.2.1 inflating

Annotations:

  • the particles have no where to go so they collide with the wall of the balloon to create an exit with a large pressure.
2.2.2 constant size

Annotations:

  • a balloon stays the same size because particles on the other side of the balloon are trying to enter balancing the amount of pressure exerted on the balloon
2.2.3 deflates

Annotations:

  • the particles find an exit and escape the balloon this decreases the pressure exerted on the balloon
2.3 p1 v1 = p2 v2
2.3.1 pv = constant
2.4 insulation
2.4.1 best insulater = highest temperature in beaker
2.4.2 low temperature = heat into atmosphere
2.4.3 no insolation - so you can compare results
2.5 heat capacity
2.5.1 formula

Annotations:

  • Change in thermal energy = mass x specific heat capacity x temperature difference.
2.5.1.1 objects heat capacity

Annotations:

  • copper = 390 j/kg oc water = 4200 j/kg oc
  • mass = 1 kg
2.6 energy stores
2.6.1 elastic

Annotations:

  • stored in stretchy materials  e.g spring, elastic band elastic - gravitational potential
2.6.2 gravitational potential

Annotations:

  • The closer to the ground the less gravitational potential it has, e.g books, Gravitational - thermal when heated
2.6.3 magnetic

Annotations:

  • stored in a magnetic field, magnets
2.6.4 kinetic

Annotations:

  • affected by the objects mass and speed, e.g: bullet, plane, car
2.6.5 chemical

Annotations:

  • can be converted into other energy sources, e.g batteries, oil, coal, food
2.6.6 thermal

Annotations:

  • very hot, able to change an objects state, e.g lava
2.6.7 nuclear

Annotations:

  • is an energy found in nucleus' which is released when the atom splits, E.g: iranium, sun.
2.7 transferring stores
2.7.1 e.g sun: nuclear - thermal
2.7.2 e.g trampoline : elastic - kinetic
2.8 efficiency

Annotations:

  • efficiency = useful output energy transfer / total imput energy transfer.
2.8.1 e = u.o / t.i
2.8.2 u.o = e x t.i
2.8.3 t.i = u.o / e
3 energy resources
3.1 renewable
3.1.1 bio - fuel

Annotations:

  • Lower fuel prices, carbon neutral. Food shortages, fossil fuels needed for the fertilizer.
3.1.2 solar

Annotations:

  • small, portable, no pollution, renewable! depends on light intensity!
3.1.3 wind

Annotations:

  • low running costs, no pollution, renewable noisy, expensive, spoils view, depends on the wind!
3.1.4 hydroelectricity

Annotations:

  • Renewable, no pollution, no fuel costs, stored for when needed! expensive, large amount of land, ruin the environment! 
3.1.5 tidal

Annotations:

  • renewable, no pollution, reliable, cheap once built! expensive to build, can cause flooding, not strong enough waves!
3.1.6 Geothermal

Annotations:

  • renewable, no pollution, no environment damage! Expensive, few places were it works!
3.1.7 wave power

Annotations:

  • renewable, no pollution, uses lots of energy, expensive,
3.1.8 produce no pollution
3.2 non - renewable
3.2.1 oil
3.2.2 coal
3.2.3 gas
3.2.4 nuclear
3.2.5 heating, transport, electricity
3.2.6 cheap, reliable, concentrated
3.2.7 limited, produces greenhouse gasses
4 kinetic energy
4.1 Ek= 0.5 *m*v2
4.1.1 v= velocity
4.1.1.1 m/s
4.1.2 m= mass
4.1.2.1 kg
4.1.3 Ek = kinetic energy
4.1.3.1 j
4.1.4 m=ke/0.5 * v2
4.1.5 v2 = ke/ m*0.5
5 work done= force * distance
5.1 force = n
5.2 distance = m
5.3 work done = j
5.4 f = wd/ d
5.5 d= wd/ f
6 ep=m*g*h
6.1 ep= Gravitational potential energy
6.1.1 j
6.2 m = mass
6.2.1 kg
6.3 h = height
6.3.1 m
6.4 g= gravitational field strength
6.4.1 n/kg
6.5 g=ep/m*h
6.6 h=ep/m*g
6.7 g=ep/m*h
7 p=d*f/t
7.1 p=power
7.1.1 w
7.2 d= distance
7.2.1 m
7.3 f= force
7.3.1 n
7.4 t=time
7.4.1 seconds
7.5 d=p*f/t
7.6 f=p*d/t

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