Page 36 - Physics Form 5 KSSM_Neat

Procedure:
1. Set up the apparatus as shown in Figure 1.32. Ensure that the Info GALLERY
zero mark of the half-metre rule is at the same level as the The extension of a spring is the
upper end of the spring. increase in length of the spring
when a stretching force is applied
on it.
KEMENTERIAN PENDIDIKAN MALAYSIA
Retort stand 1 2 3 cm Spring
4 5
Plasticine l
6
7
8
0
l
Pin
x
F
The extension of a spring is the
Table difference between the extended
Half-metre rule length, l and the original length, l .
0
x = l – l 0
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49
Figure 1.32
2. Determine the original position of the pin, that is, the original
length of the spring, l . Note
0
3. Plan steps to: Ensure that the extension of the
(a) increase the force applied on the spring using the slotted spring does not exceed half of the
weights supplied. original length so that the spring
(b) measure the extension of the spring. is not overstretched and able to
return to its original length.
4. Carry out the experiment according to the steps you
have planned.
Results:
Prepare a table to record:
(a) the mass of the slotted weights used to stretch the spring
(b) the force applied on the spring
(c) the extended length of the spring
(d) the extension of the spring
Data analysis:
Identify and plot a graph that will help you to test your hypothesis.
Conclusion:
What conclusion can be drawn from this experiment?
Prepare a complete report for this experiment.

Discussion:
1. What are the precautions needed to be taken so that the spring is not overextended?
2. Do the points plotted on the graph form a perfect straight line? Discuss the reasons.

26 LS 1.4.2