PHYSICS VIDEOS

 

MANDATORY EXPERIMENTS

 

LIGHT

To measure the focal length of a concave mirror

To verify Snell’s law of refraction and hence to measure the refractive index of Perspex

To measure the refractive index of water

To measure the focal length of a converging lens

To measure the wavelength of monochromatic light using a spectrometer

 

MECHANICS

To measure velocity with a ticker timer
To measure velocity with an air track and light gates
To measure velocity with a motion sensor and datalogger
To measure acceleration with an air track and light gates
To measure acceleration with a ticker-timer
To show that acceleration is proportional to force using a motion sensor

To verify the principle of conservation of momentum using a ticker timer
To verify the principle of conservation of momentum using an air track

To measure g, the acceleration due to gravity, using a free-fall apparatus
To measure g, the acceleration due to gravity, with a picket fence and photogate

To verify Boyle’s Law using a pressure sensor

To investigate the laws of equilibrium for co-planar forces

To investigate the relationship between period and length for a simple pendulum and hence to find a value for g

 

HEAT AND TEMPERATURE

To draw the calibration curve of a thermistor using a laboratory mercury thermometer as a standard

To measure the specific heat capacity of water by the electrical method
To measure the specific heat capacity of water using a copper cylinder

To measure the specific latent heat of fusion of ice

To measure the specific latent heat of vaporisation of water

 

SOUND

To measure the speed of sound in air using a resonance tube 1

To measure the speed of sound in air using a resonance tube 2

To investigate the variation of the fundamental frequency of a stretched string with length

To investigate the variation of the fundamental frequency of a stretched string with tension

 

ELECTRICITY

To verify Joule’s Law

To measure the resistivity of the material of a wire using an ohmmeter

To measure resistivity with a metre-bridge

To investigate the variation of the resistance of a metallic conductor with temperature

To investigate the variation of the resistance of a thermistor with temperature

To investigate the variation of current (I) with p.d. (V) for

            (b) a filament bulb

            (c) a copper sulphate solution with copper electrodes

            (d) a semiconductor diode

 

 

MISCELLANEOUS DEMONSTRATIONS, EXPERIMENTS AND DEFINITIONS

 

MECHANICS

To find the density of a rectangular block
Zero velocity at maximum height or How to Juggle
Introduction to Momentum

Momentum: The Tennis Ball and the Basketball

Measuring the Momentum of a Student on a Skateboard
Stating the principle of conservation of momentum

To demonstrate part one of Newton’s first law of motion

Two more demonstrations of Newton's first law part one

Stating Newton’s Three Laws of Motion

To measure the maximum pressure exerted by a rectangular block in pascals

Introduction to the Moment of a Force

Introduction to levers

Introduction to Newton's Law of Gravitation

An object in free fall appears weightless

Finding the loss of potential energy when a ball bounces

Finding the work and power needed to lift a schoolbag 2 metres high
Finding the Resultant of Two Vectors

Introducing moment of a force

Illustrating circular motion with a hex nut and a balloon

HEAT

Three thermometric properties

To estimate the specific latent heat of vaporisation of water using a kettle

A definition of the solar constant

A definition of U-value

 

 

SOUND, WAVES AND LIGHT

To show that sound is a wave

To show that sound cannot travel through a vacuum

A definition of sound intensity

Polarisation

The Doppler effect
Introduction to concave and convex mirrors

Adjusting a spectrometer

Ultraviolet light

 

ELECTRICITY AND MAGNETISM

To demonstrate the laws of static electricity

To demonstrate charge separation

To charge an electroscope by induction

An introduction to capacitors

To demonstrate that a capacitor stores energy

To show that a capacitor blocks d.c. but conducts a.c.

 

To demonstrate the chemical effect of current

100 ohm resistors in series and in parallel

The rheostat

The metre bridge

To show the magnetic effect of current (Oersted’s experiment)

To show the force on a current-carrying conductor in a magnetic field

A simple motor

To show the magnetic force between two current carrying conductors and hence define the ampere

A definition of the ampere

To demonstrate electromagnetic induction

To demonstrate Lenz’s law using a long aluminium tube and two weights

LCHP 2008 Q8 on Lenz’s law

Mutual induction

To demonstrate self-induction using a d.c. source and a neon lamp

Coils and a.c.

The transformer: step up and step down

The transformer and d.c.

 

To show the photoelectric effect

To demonstrate the action of a photocell