PEKA 3 : HOOKE'S LAW

Inference:
The extension of the spring depends on the load force.

Hypothesis: ____________

Aim of the experiment:
i. To _________ the relationship between the __________ and the ____________ of spring as well as
   to verify Hooke's Law for simple spring.
ii. To determine the diameter of wire.


Variables:
Manipulated: _____________________
Responding: ______________________
Constant:     ______________________

Apparatus/Materials:  
__________, ___________, mass hanger, ____________, pin, 50 g slotted weight.


Procedure :
1. The equipment was set up as shown in Figure 1.
2. The initial position of the indicator pin was measured and recorded.
3. Mass of 50 g was added to the mass hanger and the added mass, m was recorded.
4. The new position of the pin was measured and hence the extension, x of spring was recorded.
5. The experiment was repeated with mass ( 0.10, 0.15, 0.20, 0.25 and 0.30 ) kg and the
    corresponding extension was recorded each time.
6. All results were recorded in a table.

Results :
Initial length of spring, lo = ___________ cm













Discussion:




Conclusion:
The _________ of the spring is ____________________ to the _________ acting on it and obey the Hooke's law if provided elastic limit is not exceeded.

Precaution :
1. The length of the spring is checked to determine whether the spring is able to return to its original
    length so that it  does not exceed the elastic limit.
2. Eye must be perpendicular to the metre ruler to avoid parallax error.