# Physics: Electricity & Heat (age 14-18) eBook

Lesson plan and student worksheets

3529

##### Product Description

62 practical activities for 14 – 18 year olds to support GCSE, AS and A Level courses

This eBook, as part of the Secondary Teaching Materials (10 ebooks), contains:

• The full eBook (PDF) of all the experiment worksheets and teachers notes.
• Every worksheet and teacher note as a separate PDF
• Setup files to match these experiments are included in the EasySense1 software

Topics include:

• Convection, conduction and radiation
• Heat and temperature
• Equivalence of energy
• U values and insulation
• Electrical characteristics
• Current and voltage in a circuit
• Ohm's law
• Electromagnetism.
• Diodes
• Transistors
• LCR circuits

The activities include:
• The coffee problem
• Cooling by evaporation
• How does sweating keep you cool?
• Cooling substances
• Heat transfer
• Radiate energy (Leslie’s cube)
• Relationship between temperature and radiated energy
• What type of surface absorbs radiant energy?
• Why insulate houses? A hotter house for less greenhouse gas
• Conduction and convection in gases
• Conduction and convection in liquids
• Conduction and convection in solids
• Which is the best conductor of heat?
• Which material is the best absorber of heat?
• Residual heat: Thermal imaging
• Residual heat: Finding where a natural disaster survivor is buried
• Hot stuff!
• Equivalence of heat energy liberated to electrical energy dissipated
• Stefan – Boltzmann law using a tungsten filament lamp
• Calibration of a thermometer
• Specific heat capacity for a liquid
• Specific heat capacity of a solid
• Using U values, how heat is lost
• Angle of the sun and collected energy
• What changes the current in a circuit?
• Good and bad connectors
• Connecting resistors together
• What happens to the brightness of a bulb when the voltage is changed?
• Can you use the bulb brightness to measure current?
• Current and voltage a) against time) b) as an x –y graph
• Electric current in circuits – series circuits – current has no choice
• Electric current in circuits – Parallel circuits – current has a choice
• Electric current in circuits – current and voltage in a simple series circuit
• Ohm’s Law
• Electrical characteristics resistor, lamp diode and LED
• Time constant for a capacitor – resistor circuit
• Time constant for a capacitor – resistor circuit
• Charge stored on a capacitor
• Energy stored in a capacitor
• Startup current of a light bulb
• Long wires, less power?
• Induction of a current in a conductor
• Induction of a voltage in a coil
• Induction of a voltage in a coil extension + current
• Induction of a voltage in a coil extension + current and magnetic field
• What happens when a magnet spins in a coil?
• Efficiency of an electric motor / generator
• Electricity from water power
• Change in the magnetic field strength between magnets
• Measuring the strength of an electromagnet
• Strength of an electromagnet, measuring volts and current
• What happens if an alternating current is used to make an electromagnet?
• How does the magnetic field strength due to a coil vary as the current varies?
• The force acting on a current carrying conductor in a magnetic field
• The variation of the magnetic field strength along the axis of a coil
• Mapping the magnetic field of a bar magnet
• Efficiency of a transformer
• The D.C. characteristics of a diode
• Diodes: A.C. rectification
• Diodes: A.C. rectification bridge
• The input characteristic of a transistor
• Transistor as a switch and a current amplifier
• Reactance and phase in a capacitor
• C –R circuit. The impedance and phase difference changes as the frequency increases
• L – R circuit. How does the impedance change as the frequency increases?
• Resonance in a series LCR circuit

Sensors used are:

• Temperature (3100)
• Infrared (3278)
• Heat Flow (3150)
• Voltage (3160 or 3160-12 and 3162)
• Current (3165, 3166, 3167)
• Magnetic Field (3170)
• Light Level (3124)