Physics Worksheet (Page 2 of 3) in pdf

Physics Worksheet Page 2

7. a. State Hooke’s law. …………………………………………………………………………………

……………………………………………………………………………………………………………..

(2)

b. A spring is 20 cm long. After adding a load of 2 N it becomes 26 cm long.

(i) The extension of the spring is …….. cm.

(1)

(ii) Calculate the extension of the spring if a 1.5 N is loaded instead.

……………………………………………………………………………………………………………..

(2)

……………………………………………………………………………………………………………..

c. Ben plots two graphs for two different springs.

(i) Which of A or B is the least stiff ? ……….

(1)

(ii) Explain.

(2)

……………………………………………………………………

Load (N)

…………………………………………………………………….

8. Justin loads a spring and obtains the following results.

Load (N)

Length of spring (cm)

Extension (cm)

a) What is the length of the spring before it is loaded? .........................................

(1)

b) Complete the table by working out the extensions of the spring.

(3)

c) Plot a graph of Extension (cm) on the y-axis

against Load (N) on the x- axis.

(4)

d) Label with an 'X 'the point where the

elastic limit is reached.

(1)

e) What is the value of the maximum load

which the spring can take before being

permanently deformed?

.................................................................. (1)

f) Name two precautions which should be

taken during this experiment.

.....................................................................

Load (N)

.....................................................................

................................................................. (2)

Physics Worksheet Page 2