8La Practical 1 Making sounds
Apparatus per group:
tuning fork
ruler
rubber band
tripod
pencil case
pencil
test tube
rubber bung
beaker of water
Worksheets 8La/1
8La Practical 2 String telephones
Apparatus per group:
two plastic cups
length of string
8La Practical 3 Other vibration demonstrations
Apparatus per group:
thin metal plate
cork supports
sand
violin bow/ small hammer/ dry ice
8Lb Practical 1 Changing the pitch
Apparatus:
bottle with water
a container of water
block with different height nails in
hammer
set of wind chimes
several different lengths of wood
cardboard box
rubber bands
ruler
clamp
(xylophone or glockenspiel)
Worksheets 8Lb/1 or 8Lb/2
8Lb Practical 2 Showing sounds waves
Apparatus:
loudspeaker
signal generator
microphone
oscilloscope
8Lb Practical 3 Guitar/ other instruments
Apparatus:
guitar/ sonometer
other instruments
oscilloscope
microphone
optional:
sound intensity probe
datalogging equipment
8Lb Practical 4 Oscillation effects
Apparatus:
retort stand
spring slotted masses and holder
8Lc Practical 1 Travelling sound
Apparatus per group:
stethoscope
trough of water
two pieces of wood (or a bell or anything which makes a loud sound)
Worksheet 8Lc/1
optional:
sounds intensity meter
datalogging equipment
8Lc Practical 2 Sounds underwater
Apparatus per group:
thin sheet of rubber
funnel
half a metre of rubber tubing
battery-operated radio
sealable plastic bag
8Lc Practical 3 Bell jar
Apparatus:
bell jar and stand
vacuum pump
electric bell
battery/ power supply
connecting wires
8Ld Practical 1 Hearing range
Apparatus per group:
signal generator
oscilloscope
loudspeaker
Worksheet 8Ld/1
8Ld Practical 2 Direction of hearing
Apparatus:
chair
blindfold
a grid showing eight points of the compass
8Ld Practical 3 Size matters
Apparatus:
chair
blindfold
a grid showing eight points of the compass
cardboard ears
signal generator
loudspeaker