Materials Required:
Wooden block and spring balance of 5 N.
Procedure in a real lab:
- A wooden block with a hook is placed on a table.
- Note down the least count of the spring balance.
- The spring balance is attached to the hook.
- Hold the spring in such a way that the reading displayed in the spring balance can be noted down without any parallax error.
- The applied force on the spring balance is gradually increased until it just starts to move.
- The reading of the spring balance is noted.
Procedure using simulator:
- From the combo box, select Environment, where the experiment to be carried out.
- Note down the least count of the spring balance.
- The user can increase the mass of the block by changing the slider ‘mass of the block’.
- The user can also change the roughness of the table by changing the ‘Roughness of the table’ slider.
- Apply force on the spring balance by changing the ‘Apply force in Newton’ slider.
- The ‘Reset’ button can be used to reset the experiment to its initial state.
Observation:
Least count of the spring balance = value of 1 small division = …….g.wt
Trial No; |
Mass of the block, M (kg) |
Force required, F (N) |
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As the mass of the block increases the force required to move the block is also increases.
Result:
Force applied to just move the block is directly proportional to the mass of the block.
ie, F ∝ M
Precautions:
- A suitable spring balance to pull the block must be used.
- The spring balance should be brought in elastic mode before doing the experiment.
- The reading of the spring balance should be taken without any parallax error.
- A smooth table or surface must be used.