P1 Matter Revision
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Atoms
1) Label this atom.
Include the words:
• Electron
• Neutron
• Proton
• Nucleus
• Orbit or Shell
Add the charges to each part.
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Atoms
1) Label this atom.
Include the words: Protons (positive)
• Electron
Neutrons (neutral)
• Neutron
• Proton
Electrons (negative)
• Nucleus
• Orbit or Shell
Electron shells
Nucleus
Models of the Atom
2) Copy and complete
• John _________ developed the first
model of the atom.
• Each atom is a ______ sphere. There are
no _______, _______ or electrons.
• It is similar to our model because…….
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Models of the Atom
2) Copy and complete
• John Dalton developed the first model
of the atom.
• Each atom is a solid sphere. There are
no protons, neutrons or electrons.
• It is similar to our model because……. all
atoms of the same elements are
identical. Different elements have
Help on page 19 different atoms.
Models of the Atom
3) Copy and complete
J.J. Thomson came up with a new model,
known as the plum pudding model, after
discovering the electron.
•
An atom was a positive mass.
•
Throughout it were stuck negative
electrons.
• J.J. Thomson discovered the ________
this led him to develop the plum_______ model of the atom.
• Each atom was a ________ sphere. With
_______ stuck in it.
• It is similar to our model because…….
Help on page 19
Models of the Atom
3) Copy and complete
J.J. Thomson came up with a new model,
known as the plum pudding model, after
discovering the electron.
•
An atom was a positive mass.
•
Throughout it were stuck negative
electrons.
• J.J. Thomson discovered the electron
this led him to develop the plumpudding model of the atom.
• Each atom was a positive sphere. With
electrons stuck in it.
• It is similar to our model because it has
Help on page 19positive and negative charges
Energy Stores
3) Copy and complete these sentences by
choosing the correct piece of bold text.:
In the torch the energy is transferred by an
electric current/a force.
When the cyclist moves downhill energy is
transferred by an electric current/a force.
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Energy Stores
3) Copy and complete these sentences by
choosing the correct piece of bold text.:
In the torch the energy is transferred by an
electric current.
When the cyclist moves downhill energy is
transferred by a force.
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Energy Stores
4) State the equation for potential energy.
5) State the gravitational field strength on Earth:
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Energy Stores
4) State the equation for potential energy.
Potential Energy = mass x g x height
5) State the gravitational field strength on Earth:
g = 10N/kg
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Energy Stores
6) Using your answers to questions 4 and 5:
Complete this table.
Height of ball
(m)
Mass of ball
(kg)
1
0.5
0.25
0.25
0.25
0.25
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Gravitational
Potential
Energy (J)
Energy Stores
6) Using your answers to questions 4 and 5:
Complete this table.
Height of ball Height of ball
(m)
(kg)
1
0.5
0.25
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0.25
0.25
0.25
Gravitational
Potential
Energy (J)
2.5
1.25
0.625
Energy Stores
7) Describe what we mean by ‘work done’ in
science.
8) State the equation for work done.
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Energy Stores
7) Describe what we mean by ‘work done’ in
science.
Energy transferred between stores.
8) State the equation for work done.
Work = Force x Distance
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Energy Stores
9) Using your answers to questions 7 and 8:
Complete this table.
Force (N)
Distance (m)
100
50
12
20
0.25
4
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Work Done
(J)
Energy Stores
9) Using your answers to questions 7 and 8:
Complete this table.
Force (N)
Distance (m)
100
50
12
20
0.25
4
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Work Done
(J)
2,000
12.5
48
Energy Stores
10) State the law of conservation of energy.
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Energy Stores
10) State the law of conservation of energy.
Energy cannot be created or destroyed, it can
only be transferred between stores.
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11) A student stretches a spring. Energy is
stored in a spring that is stretched. Complete
the table, you will need to use the equation:
energy transferred = 0.5  spring constant 
extension2
Remember extension should be in metres.
Spring
Constant
(N/m)
100
50
25
Extension of
spring (cm)
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2.0
1.3
1.0
Energy transferred
in stretching /
compressing (J)
11) A student stretches a spring. Energy is
stored in a spring that is stretched. Complete
the table, you will need to use the equation:
energy transferred = 0.5  spring constant 
extension2
Remember extension should be in metres.
Spring
Constant
(N/m)
100
50
25
Extension of
spring (m)
0.02
0.013
0.01
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Energy transferred
in stretching /
compressing (J)
0.02
0.0004225
0.00125
12) State the equation for power.
13) Complete this table, remember to work in
Joules, Watts and Seconds.
Energy
transferr
ed
Time
Kettle
3000 J
2
seconds
Light
bulb
6000 J
1 minute
Radio
600 J
Oven
10 kJ
Item
Job it
does
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30
seconds
1 second
Power
(__)
12) State the equation for power.
Power = Energy ÷ Time
13) Complete this table, remember to work in
Joules, Watts and Seconds.
Item
Kettle
Light
bulb
Radio
Oven
Job it
does
Heats
Water
Lights
Room
Makes
Sound
Heats
Food
Energy
transferr
ed
3000 J
6000 J
600 J
10,000J
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Time
2
seconds
60
seconds
30
seconds
Power
(W)
1,500W
100W
20W
1 second 10,000W
14) Complete this table for power, but now
work in kW, hours and kWh.
1.1 kW
Time
(h)
2
Power
(kW)
1.1
500 W
1
0.5
500 W
0.5
0.5
100 W
40 W
4
4
0.1
0.04
11 W
12
0.11
Appliance
Power
Iron
Washing
machine
Vacuum
cleaner
TV
Laptop
Energy saving
light bulb
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Energy
(kWh)
14) Complete this table for power, but now
work in kW, hours and kWh.
1.1 kW
Time
(h)
2
Power
(kW)
1.1
500 W
1
0.5
0.5
500 W
0.5
0.5
0.25
100 W
40 W
4
4
0.1
0.04
0.4
0.16
11 W
12
0.11
1.32
Appliance
Power
Iron
Washing
machine
Vacuum
cleaner
TV
Laptop
Energy saving
light bulb
Help on page 202
Energy
(kWh)
2.2
Energy Stores
15) Explain what ‘dissipated’ means.
16) Suggest how energy is dissipated when you
use an electric blanket.
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Energy Stores
15) Explain what ‘dissipated’ means.
Transfer of energy to a non-useful store.
16) Suggest how energy is dissipated when you
use an electric blanket.
Energy is transferred to thermal store of
surroundings.
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17) Use the specific heat capacity equation:
change in thermal energy (J) = mass (kg) 
specific heat capacity (J/kg °C)  change in
temperature (°C) to complete this table. Be
careful with the units.
Substance
A
B
C
D
E
F
Mass
2kg
5kg
10kg
100g
250g
400g
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Temp
Change
(C)
20
12
100
9
4
122
Specific
Heat
Capacity
4,200
900
3,000
750
2,200
200
Energy
(J)
17) Use the specific heat capacity equation:
change in thermal energy (J) = mass (kg) 
specific heat capacity (J/kg °C)  change in
temperature (°C) to complete this table. Be
careful with the units.
Substance
A
B
C
D
E
F
Mass
2kg
5kg
10kg
0.1kg
0.25kg
0.4kg
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Temp
Change
(C)
20
12
100
9
4
122
Specific
Heat
Capacity
4,200
900
3,000
750
2,200
200
Energy
(J)
168,000
5,400
300,000
675
2,200
9,760
18) State the efficiency equation
19) An electric motor has an input power of 1 kW,
and a useful energy transfer of 600 W. Calculate
the efficiency.
20) Suggest one reason that energy is wasted.
21) Suggest which energy store is filled by the
wasted energy.
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18) State the efficiency equation
Efficiency = Useful Output ÷ Input
19) An electric motor has an input power of 1 kW,
and a useful energy transfer of 600 W. Calculate
the efficiency.
600 ÷ 1,000 = 0.6, or 60%
20) Suggest one reason that energy is wasted.
Dissipation from friction
21) Suggest which energy store is filled by the
wasted energy. Thermal store of surroundings
Help on page 210
Energy
Complete the following textbook questions.
P200: Q1-3
P201: Q1
P212: Q1-4
P213: Q1-3