all experiments

Question 1

method to determine g - trap door and

Answer 1

• set up an electromagnet over a trap door
• when current switched off ball drops and timer starts
• when ball hits trap door and timer stops
• low current that just holds ball to reduce delay
• if distance too big air resistance will have an effect
• account for diameter of ball

Question 2

method to determine g - light gate

Answer 2

• use a light gate - connected to data logger and computer
• attach card to a ball
• drop through the light gate
• measure length of card and height above gate
• assumed velocity is constant through gate - measure from middle

Question 3

measuring terminal velocity of a ball

Question 4

find CoM of an object

Question 5

finding YM of a wire

Question 6

investigating strings streching

Question 7

brownian motion experiment

Question 8

specific heat capacity

Question 9

specific latent heat fusion

Question 10

specific latent heat vaporisation

Question 11

investigating circular motion

Question 12

investigating SHM