Unit 2

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12.1 Describing the way things move

Distance-time graphs
Distance time graphs (14-16)
Velocity time graphs and acceleration
Velocity and displacement (14-16)
Acceleration (11-14)
Equations of motion (14-16)
Velocity time graphs (14-16)
Motion graphs (14-16)

14- 16/Mechanics/Motion/Problems/Explaining motion1

12.2 Speeding up and slowing down

Forces and the interaction between two bodies
Newton's Third Law (14-16)

Resultant force
Addition of forces (11-14)
Newton's First Law (14-16)
Newton's Second Law (14-16)

Forces, acceleration and Newton's Second Law
Newton's Second Law (14-16)

Frictional forces and drag
Friction and drag (11-14)

14-16/Mechanics/Forces in motion/Problems/Explaining motion 2
14- 16/Mechanics/Forces in motion/Problems/Newton's laws
14-16/Mechanics/Forces in motion/Problems/Newton's laws grid
14-16/Mechanics/Forces in motion/Problems/Inertia and Newton's laws

Braking forces and speed
Stopping distances (11-14)
Car safety (11- 14)

14-16/Mechanics/Forces in motion/Problems/Safety in cars
14- 16/Mechanics/Forces in motion/Problems/Safety in cars 2

Terminal velocity
Terminal velocity (14- 16)

12.3 Kinetic energy and change of speed

Work and energy transfer
Work (14-16)

14- 16/Mechanics/Forces in motion/Problems/Trains
14-16/Mechanics/Forces in motion/Problems/Work and energy

Frictional forces and heat
Friction introduction (11-14)
Rubber band (14-16)

Kinetic energy
Kinetic energy (14- 16)

14-16/Mechanics/Forces in motion/Problems/Kinetic and potential energy
14-16/Mechanics/Forces in motion/Problems/Explaining motion 4

12.4 Momentum

Momentum
Impulse (14-16)
Momentum and impulse (14-16)
Momentum film (14- 16)

Momentum as a vector
11-14/Mechanics/Forces in motion/Text/Vectors and scalars

Change of momentum and collisions
Collisions (14- 16)
Explosions (14- 16)
Conservation of momentum and skaters (16-19)
Momentum and impulse (14-16)

14-16/Mechanics/Forces in motion/Problems/Momentum
14-16/Mechanics/Forces in motion/Problems/Momentum conservation

14-16/Mechanics/Forces in motion/ Experiments/Momentum experiments

12.5 Static electricity and its connection with current electricity

Static electricity and friction
Static electricity (11-14)

Charges and forces
Static electricity (11-14)

Electric charge and electric current
Charge and current (11-14)

Teachers/OHTs/Ball and plates

Uses and effects of static electricity
Uses of static electricity (11-14)

14-16/Electricity and magnetism/Electrostatics/Problems/Static electricity

12.6 Current, voltage and resistance

Current-potential difference graphs
Variation of current with applied voltage (16-19)

Current and resistance - Ohm's Law
Ohm's law (14-16)
Resistance (14-16)

14-16/Electricity and magnetism/Current electricity/Experiments/Ohm's law

14-16/Electricity and magnetism/Current electricity/Problems/Ohm's law and resistance
14-16/Electricity and magnetism/Current electricity/Problems/Voltage current and resistance

The LDR and the thermistor
LDR and thermistor (14-16)

The effect of resistance on the current
Resistance (14-16)

14-16/Electricity and magnetism/Current electricity/Problems/Electric circuits 2
14-16/Electricity and magnetism/Current electricity/Experiments/Thermistor resistance

Circuits connected in series or in parallel
Seri es circuits (14-16)
Series and parallel (14-16)
Series and parallel components (14-16)

12.7 Mains electricity and its safe use

Direct and alternating current
Direct and alternating current (14-16)

Fuses, plugs and switches
11-14/ Electricity and magnetism/Current electricity/Text/Fuses, plugs and switches
11-14/Electricity and magnetism/Current electricity/Text/Fuses and circuit breakers
16-19/Electricity and magnetism/Current electricity/Experiments/Fusing currents in wires

Earthing an appliance
Fuses, plugs and switches (11-14)

12.8 Electrical power

Electric current as a flow of charge
Charge and current (11-14)
Resistance (14-16)

Electrical power
Power (14-16)
Electrical Power (14-16)
Volts amps and joules (14-16)
Charge and current (11-14)

14-16/Electricity and magnetism/Current electricity/Problems/Electrical power
14-16/Electricity and magnetism/Current electricity/Problems/Voltage current resistance power grid
14-16/Electricity and magnetism/Current electricity/Problems/Electric circuits 5

14-16/Electricity and magnetism/Current electricity/Experiments/Power of a lamp and small motor

12.9 The decay of radioactive substances

Protons, neutrons and electrons
Atomic structure (14-16)

Ions
Ionisation (14-16)
Electrolysis (11-14)
Electric current (11-14)

Isotopes
Isotopes (14-16)
Elements (14-16)

Proton and neutron number
Atomic structure (14-16)

Alpha and beta decay
Radioactive decay (16-19)
Radioactivity types (14-16)

Teachers/OHTs/Radioactive decay

Background radiation
Background radiation (14-16)

Teachers/OHTs/Background radiation
Teachers/OHTs/Background pie chart

12.10 Nuclear fission and nuclear fusion

Chain reaction
Nuclear fission (14-16)

Nuclear fission reactors
Nuclear fission reactors (14-16)

Nuclear fission
Nuclear fission (14-16)

Nuclear fusion and the energy of stars
Nuclear fusion (14-16)
Stellar energy (16-19)

14- 16/Nuclear physics/Problems/Radioactive materials 3