Question

1)In hookes law experiment,how can we determine the accuracy and the precision of the results that we obtain from the graph extension force against extension of the spring?Explain your answer.

2)How can we say if the graph extension force against extension of the spring obeys the hookes law?.What are the elements that we should look for in the graph?

3)What are the purposes of calculating the spring constant of the spring by finding the gradient of the graph?

Can you help me answer these 3 questions.I really need your help.thank you so much for your help.

Answer 1

1)

* Use a meter ruler checking it is perpendicular to the floor using a set square and clamping it in the position using a retort stand to increse the accuracy.

*Keep the temperature of the room constant

2)

If the force-extension graph gives a straight line, we can say that the material obeys hookes law.

We should plot the graph axes values uniformly, the slope of the graph should be the same until the elastic limit of the grsph.

3)

we can use the material for different purposes by finding the modulus of elasticity of the material. materials of different modulus of elasticity are required for different purposes.