Physics revision copy.pptx revise physics

What should
be physics
revision
Proudly presented by Tatyana
Gow

The entire objective of this
presentation! <3
Tuesday, February 2, 20XX Sample Footer Text 2
Hi, so I know I have probably written a lot.
There is a point to that, my dear friends. Rather than a classic
PowerPoint of endless information, I decided on a more
contemporary approach. There are four big categories in this
PowerPoint on physics, which are then individually sorted into
even smaller, bitesized micro-subjects, each with 2-3 interactive
activities.
This, I have decided, will be a tournament. Each of you will
compete against the others, to complete each activity and write
down your notes on each one, as fast, accurate and as well-
presented as possible. The winner of each small activity will be
awarded 1 point. At the end of each of the four larger sections,
there will be a blooket. The winner of each blooket will be
awarded an excitingly large number of 5 points. You will add up
all your points at the end, remember to keep a careful score of
them, and whoever wins will receive a prize.
Bonne chance, and Godspeed.
Unfortunately, this means you have to write all this in your books,
or on paper. I’m sorry, but it’s all the better for committing it to

Contents:)
Energy in the 21st
century
How science works <3
Living beyond the earth :D
Medical physics 
Sample Footer Text 3

Energy in the twenty first centur

Happy studying!

Mini
Contents
^^:
• - Energy stores & transfers
• - Dissipation & efficiency
• - Sankey diagrams
• - Renewable + unrenewable
energy
• - Cost of Electricity
• - Magnetic fields

Tuesday, February 2, 20XX
Energy stores
and transfers

Kinetic
Gravitational
Chemical
Elastic
Magnetic
Electrostatic
Nuclear
Thermal
Energy stores match up!
Increase this store by pushing two like poles together, or
pulling two unlike poles apart
Increase this store by stretching or compressing an object
Increase this store by moving an object faster, or by moving
a more massive object
Increase this store by heating an object.
Increase this store by raising an object, or by raising a more
massive object
Increase this store by increasing the amount of nuclear
fuel, e.g. uranium.
Increase this store by increasing the amount of fuel, e.g.
coal
Increase this store by charging an object, e.g. rubbing a
balloon.

Energy transfers activity : cryptic clues <3
Guess what energy transfer this is!
It’s Sound!
Can you guess an example
of this?

It’s radiation!
Can you think of an
example of this transfer?

It’s light!
Can you think of an
example of this in real
life?

It’s electrical!
Can you think of an
example of this in real life?
What about your bedside
lamp?

It’s mechanical!
Can you think of an
example of this in real life?
What about a clock?

Ok, last one. Energy transfers activity : cryptic clues <3
It’s heat!
Well done for making it
through!  the picture
is example enough,
don’t you agree?

Well done so far!
Don’t give up. ^^
I believe in you!
This is a reminder to take a break if
necessary, you hard workers! 
If you want a challenge, come up with
transfers between stores! Ex :
chemical (in arm muscles)- mechanical
transfer- Kinetic (your hands are
moving)- heating transfer (by friction)
– thermal (your hands get hot.)

Dissipation<3

Thermal or Kinetic?
Dissipation: a process where energy spreads out in space
Kinetic Energy can dissipate as a result of frictional forces, such as air resistance and contact friction.
Thermal Energy can dissipate due to the random motion of the particles.

Remember
to take a
breath.
Next activity is on efficiency.

Efficiency key terms: Activity
Match the term numbers to the meanings <3
Terms
1) Saved
2) Conserve
d
3) Used
4) Wasted
Meaning
Energy transferred that wasn’t useful : 4
Energy that cannot be created or destroyed,
only transferred between stores: 2
Used less than previously thought: 1
Energy that was transferred to do something
useful: 3

Efficiency Equations  Information board & Activity
If: Total energy input = total energy output
& total energy output = useful energy output + non-useful energy
output
& Efficiency = useful energy/ total x 100
So,

That’s the end of that short
chapter. Take a break, then
return to this next one.
Im proud of you. 

Welcome to the
realm of Sankey
diagrams!

Sankey diagrams Activity: copy the example into your
books, and calculate your own after the example shown.
<3
What should each label say?
Draw a Sankey Diagram showing a lightbulb that
has 20J of electrical energy in, with 5J useful , 15J
non-useful.
Well, first, to make it smaller, divide it by a
common factor, such as five. This makes more
space to draw it out. Such as five. 20j (4 squares) 5j
(1 square), 15 j (3 squares) then all that’s left to do
is label it.
Going by this, draw a diagram showing A toaster
uses 1500J of electrical energy. 300 J is used to
toast the bread.
Good luck!

Renewable + non-
renewable energy <3
I know it’s hard and annoying, but I know you can do it. 
Take a short rest, for time is going past!
* There is also a bonus activity (video)

What’s this type of energy? 
Solar energy
How does this work?
<3
The earth gets light and heat energy
from the sun. Solar cell technology
converts solar energy into electricity
through a process known as
photovoltaic effect.
How can we get this energy?
From a solar panel, for example.
Bonus questions : What
are the pros and cons
of this energy source?
Does it pollute the
atmosphere?

this is wind energy.
How does it work?
Wind passes over blades of wind turbine, causing them to turn,
the rotating shaft turns a generator that converts the kinetic energy
into electrical energy. This then passes through a transformer,
which steps up its voltage so it can be transported to national grid.
How can we get this energy?( Clue in picture)
Obviously in a wind turbine!
Bonus questions : Pros and cons and does it pollute?

this is geothermal energy.
How does it work?
Comes from radioactive decay of materials,
hearkening from the formation of the planet.
You drill for it.

this is biofuel energy.
How does it work?
Chemical potential energy produced by photosynthesis, and stored in oil and starch
, producing plants like corn and sugar cane can be turned into fuel for transport
and heating.
You grow lots of crops over a stretch of land, and burn it for fuel, or let it
Ferment.

this is wave energy.
How does it work?
Moving waves store kinetic energy. Using wave converters,
we can convert the stored kinetic energy of the waves into energy which can be transferred
by electricity for use in homes.
As waves move through wave converter machines, they cause turbines (big fans) to turn,
which drives generators, thus producing electricity.
It is produced by floating turbine platforms that rise and fall with the swells.

this is fossil fuels.
How does it work?
The chemical energy, stored in fossil fuels (coal, oil, gas)
can be turned into thermal energy by burning them.
This can then be transferred by electricity into our homes,
or converted into kinetic energy for cars.
We drill for the bones of our predecessors and convert it to oil and coal to
Power our transportation.

this is biomass energy.
How does it work?
The chemical potential energy produced by photosynthesis
and stored plants and trees can be turned into heat energy by burning them.
Waste plant materials can also be turned into biofuel.
Usually direct combustion.

What’s this type of energy?  last one!
this is tidal energy.
How does it work?
See below!
When the tide is high, the water has lots of gravitational potential energy, (GPE)
when this water falls under gravity, this GPE is converted into kinetic energy.
We can convert this stored kinetic energy into electricity.

Information board!
The proportion of use of each
energy type has changed over
time.
Mostly, when we first started using
cars, in the 1880’s, most cars ran
on steam, gasoline, or electricity.
The usage of fossil fuels grew
during the 1950s, and is now used
in a widespread fashion. We are
beginning to use other fuel types,
such as electricity, hydrogen, etc.
Fuel type usage will continue to

Well done! 
Did you get them correct? It’s okay if not, just revise them over
again! Next up it’s the film corner. Remember to take a short
break if needed.

The video corner! Learn better in an auditory fashion? I’ve
got you covered. Most of what we did was kinetic
learning! • https://www.youtube.com/watch?v=YomAHwuuQEI
• https://www.youtube.com/watch?v=xKxrkht7CpY
• https://www.youtube.com/watch?v=xy9nj94xvKA
• https://www.youtube.com/watch?v=fHztd6k5ZXY
• https://www.youtube.com/watch?v=RnvCbquYeIM
How do we get electricity?
How do solar panels work?
How do wind turbines
work?
A guide to the energy of the
world
Can 100% renewable
energy power the world?

Ok, we’re nearly at
the end of this
chapter! Next up it’s
cost of electricity!
There is this chapter, then one more to get through, and then we
move on to the next phase! 

Information
board <3
•Ok. So first we need to understand, 1000
watts = 1 kilo watt.Any four digit number
will be _.___, respectively.
•Three digit numbers, such as 800, would
be 0.8.
•And, so, of course, you can probably guess
what two, or even one digit watt numbers
would be in kilowatts. :)
•Please come up with examples, and write
them in your books.

Watts and Kilowatts match up Activity! <3
100 watts
1000 watts
1100 watts
110 watts
10 watts
11 watts
1 kilowatt
0.01 kilowatt
0.011 kilowatt
1.1 kilowatt
0.1 kilowatt
0.11 kilowatt

Cost of electricity information board!
ENERGY USED= POWER x TIME
Going by this, how much does it cost for a 500 watt
microwave being used for 15 minutes?

The last section!
Well done so far!
This time it’s
magnetism <3
Keep going, I believe in you!

Magnetism <3
Can you remember: whether similar
magnets repel or attract? And what
about opposite magnets?
Similar magnets repel, opposites
attract.
How can you find the shape of a
magnetic field? Do you know?
Plotting compasses and iron filings.
What is each end of the magnet called?
What can they be?
- Poles, either north or south.

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