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P2 Revision Checklist
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Learning Outcomes in Physics 2
Before
Revision
Forces & Their Effects (2.1)
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Resultant Forces (2.1.1)
 Understand that forces work in pairs
 What a resultant force is and how to calculate it
 Understand about equal and opposite forces
 Describe how a change in the resultant causes changes to motion
Forces & Motion (2.1.2)
 Be able to draw and interpret Distance- time graphs
 Understand the difference between speed and velocity (HT)
 Calculate the speed of an object from the gradient of a distance-time graph (HT)
 Be able to calculate acceleration when given the formula
 Be able to draw and interpret velocity time graphs
 Calculate the acceleration of an object from the gradient of a velocity-time graph (HT)
 Calculate the distance an object travelled from a velocity-time graph (HT)
 Be able to use the equation relating force, mass and acceleration, F=ma
Forces & Braking (2.1.3)
 Explain reaction time
 Explain the difference between thinking distance, braking distance and stopping distance
 Describe how stopping distance is linked to speed
 Recall the factors that affect a drivers ability to react
 Recall the factors that affect braking distance
Forces & Terminal Velocity (2.1.4)
 Know which forces act on an object moving in a fluid
 Describe and explain how velocity changes as an object moves through a fluid
After Revision
 Understand how a parachute reduces terminal velocity
 How to calculate weight, given the objects mass
 Explain the difference between mass and weight.
Forces & Elasticity (2.1.5)
 What is elastic potential energy
 Understand that when elastic objects are stretched they store elastic potential energy
 Explain the relationship between force and extension in elastic objects
 Use the equation F=ke
The Kinetic Energy of Objects Speeding Up and Slowing Down(2.2)
Forces & Energy (2.2.1)
 How to calculate work done and the power
 Understand that a raised object is doing work against gravity and gains GPE
 Calculate the change in GPE
 Understand the transfer of KE when objects fall
 How to calculate kinetic energy (HT)
Momentum (2.2.2)
 How to calculate momentum
 That momentum is conserved in collisions and explosions
 Calculate the change in momentum of collisions and explosions
 How to calculate the change in momentum caused by a force (HT)
Currents in Electrical Circuits(2.3)
Static Electricity (2.3.1)
 Describe why rubbing causes some insulators to become charged
 What charge is
 How charge flows easily in some substances like metals
 Explain the role of the electron movement in charging insulators
 Know that like charges attract and like charges repel
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 Uses and dangers of static electricity
Electric Circuits(2.3.2)
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Recall that the flow of electrical charge is called a current
Use the equation relating current, charge and time. Q=It
The symbols for circuit components
Draw circuit diagrams
Explain what potential difference is
Use the equation relating potential difference, with energy transferred and charge. V=W/Q
Where to put ammeters and voltmeters in circuits
To know Ohms Law and be able to calculate resistance R =V/I
Explain what resistance is and how it can be measured
To explain resistance changes in terms of ions and electrons (HT)
To know the difference between series and parallel circuits
To know be able to recognise/interpret current-potential difference graphs for;
o Resistor
o Filament bulb
o Diode
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Describe the use of LED’s and their use of current
Know that for Series circuits;
o Calculate the voltage of cells in series
o Total resistance is the sum of the resistance of each component
o Current is the same for each component
o The total potential difference is shared equally by the components
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Know that for Parallel circuits;
o Potential Difference is the same for each component
o The total current is shared equally by the components
 Explain how the resistance of and LDR changes with light intensity
 Understand and explain what an LDR is used for (Light Switch)
 Explain how the resistance of a Thermistor changes with temperature
 Understand and explain what a Thermistor is used for (Thermostat)
Using Mains Electricity Safely and the Power of Electrical Appliances(2.4)
Household Electricity (2.4.1)
 To know the difference between AC and DC current
 Compare and calculate the frequency of potential difference of AC&DC from an oscilloscope trace
 How we can use an oscilloscope to measure the frequency of an alternating current (HT)
 To know the frequency of mains supply
 Know the structure of a 2 core and 3 core cable
 To know how a plug should be wired
 Why the all components are made out of specific materials
 Recall the colour-coding of wires in a plug
 Understand and explain the need for the fuse and earth wire
 Understand the link between cable thickness and fuse value
 Explain what double insulated means and when it is used
 Explain that RCCB’s detect a difference in current between the live and neutral wires
 Explain that RCCB’s operate faster than a fuse
 How to choose the right fuse by calculation
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Current, Charge, and Power(2.4.2)
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Understand that a lot of heat is wasted in filament bulbs compared to energy saving bulbs (CFL’s)
Use these equations;
o P=E/t
o P =IV
 How to calculate charge flow (HT)
 Know that potential difference, charge and energy transferred are related by the equation
E=VQ (HT)
What Happens When Radioactive Substances Decay, and the Uses and Dangers of their Emissions (2.5)
Atomic Structure (2.5.1)
 The structure of an atom – its mass and charge
 Know that the atom is mostly empty space according to the nuclear model
 Explain that the atom has no overall charge
 Explain how the results of Rutherford’s Scattering led to a change in the accepted model of the atom
 Understand that new evidence can cause a theory to be re-evaluated
 Explain the atomic number and mass number
 Describe how an ion is formed
Atoms and Radiation (2.5.2)
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Know that radioactive decay is a random process
What causes background radiation
Recall the properties of α, β, and γ in terms of penetration and ionisation
Explain why alpha and beta particles are deflected in magnetic/electric fields due to their
relative charge/mass (HT)
Explain why the properties of α, β, and γ make it suitable for a particular use
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Know the nuclear equations to show alpha and beta decay (HT)
Balance these equations using the atomic number and the mass number only(HT)
Explain why alpha and beta particles are deflected in magnetic/electric fields due to their
relative charge/mass (HT)
 Recall the definition of half life
 Understand the shape of a radioactive decay graph and calculate half life from a graph
 Choose an appropriate radioactive source for a particular job based on their half life etc(e.g. tracers)
Nuclear Fission and Fusion (2.6)
Nuclear Fission (2.6.1)
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How nuclear fission occurs and explaining a chain reaction
Sketch of Label a chain reactions diagram (HT)
What happens in nuclear fusion
Explain the life cycle of stars
Know that elements up to Iron(Fe) are formed during the stable phase of a life cycle
Know that heavier elements (Iron and above) are formed during Supernovae
Explain why the early universe contain only Hydrogen but know contains a variety of different elements
Evaluate the uses of nuclear fusion and fission in generating electricity
What I know well
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What I need to revise more