Experiment Q's

Question 1

Describe how the student determines the acceleration of the body.

Experiment to show that acceleration is proportional to force.

Answer 1

Must include:
- calculate initial velocity and final velocity
- measure distance/time interval between velocities
- use relevant formula

Question 2

Describe how a student finds an approximate value for the focal length.

Measurement of the focal length of a converging lens

Answer 2

Include:
- focus the image of a distant object on a screen
- measure the distance from the screen to the lens

Question 3

Two properties of a thermometerthat help improve accuracy

Any experiment with a thermometer

Answer 3

Any of following;
low heat capacity, reacts quickly, measures to at least 2 decimal places

Question 4

How a student determines that resonance has occurred

The variation of fundamental frequency of stretched strings with tension

Answer 4

paper rider fell off / maximum displacement of the string observed