Experiments Flashcards
1
Q
How to determine the half life of a radioactive source from a graph.
A
Measure the count rate in a set time.
Repeat at regular intervals.
Measure the background count rate and subtract.
2
Q
How to determine the acceleration from a trolley down a ramp with one light gate.
A
Measure the length of the card.
Measure the time taken for the card to pass through the light gate.
Time taken for the trolley to travel from starting point to light gate.
3
Q
what is pressure?
A
force per metre squared
