Rearrange the letters and see if you can work out what todays lesson is on R G N ENERGY R G N N R G Physics Energy Transfers L1 What is energy ID: 724070
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Slide1
Crack the cryptic clue for today's title.
Rearrange the letters and see if you can work out what today’s lesson is on.
R G N Slide2
=
ENERGY
R G N
N
R
GSlide3
Physics
Energy Transfers
L1
What is energy?Slide4
Identify
types of energy and energy stores
Energy
Energy Review
LO:
All
Most
Some
03/01/2017
Keywords:
Energy, Chemical, potential, elastic, transfer, stored
Conclude
how the height affects the amount of gravitational potential energy in a ball?
Slide5
Different Types of Energy.Slide6
What type of energy do you think each picture is showing?
Write an answer for each in your book.
Chemical
Thermal
Light
Kinetic
Electrical
SoundSlide7
Self Mark!
Chemical
Thermal
Light
Kinetic
Electrical
SoundSlide8
What do you
think
the word ‘energy’ means?
Pair:
Discuss your answers and write a sentence.
Share
Slide9
Peer Mark!
What does the word ‘energy’ mean?
Energy is the ability to do work.
We need energy to do everything.
Without energy, nothing can move or change.
Energy is everywhere and takes all sorts of forms.Slide10
Types of Energy
For each type of energy, use the pictures to help you write your own definition for the energy type.
Your definition should be in a full sentence and use at least one example from the pictures.Slide11
Kinetic EnergySlide12
Sound EnergySlide13
Electrical EnergySlide14
Thermal EnergySlide15
Light EnergySlide16
Peer Mark
Can you help your partner improve their definitions?
Tick any scientific keywords they have used.
Add any useful additions in purple pen.
Check
SPaG
.
This is BEST work because…
You can transform your work by…Slide17
Check your group!
Y
ou may wish to STOP AND USE the alternative ‘Energy types, examples and transfer’
Power point
USE from SLIDE 25 onwards from current Power point WITH LESSON 5Slide18
Energy storage
Energy can be stored in 3 main ways
:
Chemical potential
Gravitational potential
Elastic potentialSlide19
10.4 Potential energy
What does ‘potential’ mean?
Any form of stored energy is called
potential energy
Potential means
the ability
to do something that hasn’t been
done
yet.Slide20
10.4 Potential energy
Elastic potential energy (EPE)
This is stored in elastic materials such as rubber, metal springs and elastic.Slide21
Chemical Energy
Chemical
potential
energy (CPE)
Energy
is stored
in the bonds between
atoms.
W
hen
the bonds are broken, often by burning (oil, gas, wood) or by a chemical reaction (digesting food, battery) the energy is released
.Slide22Slide23
10.4 Potential energy
Gravitational potential energy (GPE)
Gravitational potential energy is energy an object has because it is high up
.
This is due
to gravity pulling it down
It only releases this energy when it falls down.Slide24
Check your group!
Y
ou may wish to STOP AND USE the alternative ‘Energy types, examples and transfer’
Power point
USE from SLIDE 25 onwards from current
Powerpoint WITH LESSON 5Slide25
10.4 Potential energy
.
So what happens to the energy in the rock when it falls?
GPE is transferred as kinetic energy (KE) in the movement of the falling rock.
The energy is then transferred to
the
ground when the rock hits the floorSlide26Slide27
Label your diagram - where is gravitational
potential energy and where is kinetic
energy?
Gravitational potential energy (GPE)Slide28
Materials and equipment
Step by step
method
Fair testing, what you will measure and record
How could you test this question?
Aim: How does height affect the amount of gravitational potential energy in a ball?Slide29
How does height affect the amount of gravitational potential energy in a ball?
Method
Hold
the ball 10 cm above the ground
. Use a meter stick to measure this.
Drop the ball in a straight
line.
Measure how high the ball bounces back up.
Record your results
.
Repeat two more times at 10 cmRepeat for 20 cm, 30 cm, 40 cm, 50 cm, 60 cm etc.Slide30
Height ball dropped from (cm)
Height ball bounces
back (cm)
Trial 1
Trial 2
Trial 3
Average Height ball bounces
back (cm)
20
30
40
50
60
70
80
90
100
How does height affect the amount of gravitational potential energy in a ball?Slide31
Height ball dropped from cm
Height ball bounces
back
Cm
Height ball bounces
back
Height ball bounces
back
Average Height ball bounces
back cm 20304050
607080 90 100
Calculate averagesDraw a graph of your results – use your averages column. Put the height dropped along the x axis and the averages height bounced along the y axis How does height affect the amount of gravitational potential energy in a ball?Slide32
How does height affect the amount of gravitational potential energy in a ball?
Quick check
What is gravitational potential energy?
How
did we investigate this?
What
did we find out? Slide33
How does height affect the amount of gravitational potential energy in a ball?
Write a conclusion to explain what you have found out. – what do you results show and why is this?
Use the sentence starters to help structure your
conclusionSlide34
Plenary
Write one question in your book to answer before this box disappears!
What energy types can you see in use in this picture?
What energy transfers are happening?
What energy stores are present?Slide35
PrintingSlide36
Label your diagram - where is gravitational
potential energy and where is kinetic
energy?
Gravitational potential energy (GPE)Slide37
Label your diagram - where is gravitational
potential energy and where is kinetic
energy?
Gravitational potential energy (GPE)Slide38
Height ball dropped from (cm)
Height ball bounces
back (cm)
Trial 1
Trial 2
Trial 3
Average Height ball bounces
back (cm)
20
30
40
50
60
70
80
90
100Slide39
Height ball dropped from (cm)
Height ball bounces
back (cm)
Trial 1
Trial 2
Trial 3
Average Height ball bounces
back (cm)
20
30
40
50
60
70
80
90
100Slide40
Height ball dropped from
(___)
Height ball bounces back (___)
Trial
1
Trial 2
Trial 3
Average
height ball bounces back
(___)Slide41
Height ball dropped from
(___)
Height ball bounces back (___)
Trial
1
Trial 2
Trial 3
Average
height ball bounces back
(___)