F
O
HOOKE’S LAW FORM 2 HOLIDAY ASSIGNMENT
1.State Hooke’s law.
(1mark)
2. Awire fixed at one end extends by 4 mm When a load of 20N is suspended from the other
end. Determine the load that would cause an extension of 1.5mm on the wire.
(2marks)
3. The figure shows a wire A and a spring B made of the same material. The thickness of the
wire is the same in both cases. Masses are added on each at the same intervals and the extension
noted each time.
A
B
Loa
dddload for each (Hooke’s law is
On the axes provided sketch the graphs of extension against
obeyed)
(2marks)
load
extension
4.You are provided with a metre rule, spring ,a stand and several masses. Describe an experiment
to verify the Hooke’s law.
(4marks)
5 .Aspring has an elastic constant of 4N/m.Two identical springs are connected end to end.
Find their effective spring constant.
(2marks)
6 .Determine the total extension produced in the arrangement below.(ignore the weight of the
spring). K=50N/m for each spring.
(3marks)
7. State 3 factors that determine the spring constant of a steel spring of a given length.
(3marks)
10.In a Hooke’s law experiment to investigate the behaviour of an elastic rubber band the
following results were obtained.
Load/N
0
0.5
1.0
Extension/cm
0
1.0
2.4
(i)
Plot a graph of load against extension.
1.5
4.1
2.0
6.4
2.5
10.0
(5marks)