The speed of water waves

The strength of a beam bridge

Resonance in simple structures

The characteristics of rechargeable batteries

The viscosity of liquids

Absorption of light by acetate

Collision of Falling Balls

Cooling in cold surroundings

Strength of Corrugated cardboard

Eddy currents / electromagnetic heating

Eddy current damping

Energy transfer in a light bulb

Falling cones

Forces and tearing paper

Friction and stopping distance

Hardness testing

High diving and water depth

How spaghetti snaps

LDR depth meter

Pile driving

Deflection of cantilevers

Time periods of bouncing balls

Movement of aqueous ions in perpendicular E and B fields

Quantitative work hardening

Hysteresis in ferromagnetic material

Breaking up of liquid column from tap

Efficiency of heating water

LDR characteristics

Dart flight

Flow of water over a dam

The Venturi meter

Quenching, tempering and brittleness

Absorption of liquids by filter papers

Characteristics of a dc motor

Impact of squash balls

Creep in plastics

The acoustics of drones and didgeridoos

Strength of hair

Siphoning of water

Strength of paper strips

Tensile properties of cling film

The dynamics of a yo-yo

Shadows cast by objects

Microwave cooking

Water rockets

The wind chill factor

Effectiveness of sun-block cream

DC in transformers

Efficiency of a transformer

Reflections of light from ripples

The flow of "Silly Putty"

Hitting golf balls

Glockenspiel bars

Resonance in spring/pendulum system

Spinning discs

Resistance of a pencil line

Sagging wire ammeter

Sliding chain

Speed of a rolling ball

Thickness measurements using magnets

Solar Cells

Loading a model forearm

Extension of polythene

Efficiency of a motor as a generator

Jumping springs

Contact time of a hard bounce

Toppling bottles

Thixotropic materials

Mechanical properties of jelly

Propeller efficiency

Motion of particles in fluids

Bubbles in gels

Standing waves in vertical streams of water

The string telephone

Energy transfer (coupled) pendula

Oscillations in liquids

Sails

Fluid flow in pipes and heat transfer

Catapults

Jet propulsion with balloons

Mechanics of particulate solids

Fuses

Jointed pendulum

Drops into water

Friction between paper

Fluid viscosity

Air resistance on water jets

Electromagnetic propulsion

Flames in electric fields

Water wheels

Car safety belts

Jumping disc (Lenz’s law)

Flash duration

Pop-cups and spring-loaded leaping toys

Refraction in alcohols

Gyroscopes

Strain gauges

Surface tension

Current-bearing sonometer

Resonance in pipes

Whirlpools

Coefficient of restitution

Optical fibre properties

Electrical conduction of flames

Creep in copper wire

Pressure/volume of a balloon

Extension of a whirling spring

Stroboscopic photography

Wire resistance and strain

Wire resistance and temperature

Electrical conductivity of heated glass

AC and electrolytes

Flow of water from a punctured tank

Noise

Factors affecting the speed of sound in solids

Deflection of alpha and beta particles

Physics of resistive motion

Standing waves in pipes

Streamlines

Solar panel characteristics

Resonance in model buildings

Acoustic properties of a violin

Sound propogation through glass

Newton’s law of cooling

EMFs in rotating discs

Freezing ice

Shapes of arches

Microwave absorption by solids and/or fluids

Aerodynamic drag

Test tube deterioration

Mechanics of clay

Rotational dynamics of a hen’s egg

Loudspeaker properties

Viscous flow of golden syrup

Cornflour in water

Light intensity and power of lamps

Helmholtz coils

Suspension bridges

Spinning tops

Evaporation of water

Sound reflection and absorption

Frequencies and bells

Balloon buoyancy

The centre of percussion

Spectra and light-bulb efficiency

Fluorescence

Perception of colour

Soundproofing

Torsional oscillations

Piezo electricity

Refractive index of ice

Playground surfaces and impulses

Hysteresis and rubber

Cricket ball swing: the Magnus effect

Albedo

Speed by microwaves and Doppler Shift

Boats and drag

Accelerometers

Parachutes

Reaction times of thermistors

The dynamics of rising bubbles in fluid columns

Stokes’s Law

Forces in air jets

Whirlpools

Beats

Soap films

Impact deformation

A car alternator

Collapsing soap films

Skin electric potentials

Acoustic feedback