practicals

Question 1

stretching a spring

Answer 1

set up a clamp stand with a heavy weight at the bottom to falling over
add metre rule and spring
measure position of unstretched spring on the ruler
hang a 1N Weight and read position on ruler
repeat with more weight

Question 2

acceleration

Answer 2

toy car attached to a string
attach string to a pulley
attach a 100g mass to end of the string
draw chalk lines on the desk at regular intervals
record time car reaches each distance time
repeat decreasing mass

Question 3

infared

Answer 3

fill leslie cube with hot water
use infared detector to record the amount of infared radiation emitted by each side of the cube