# Investigation into Hookes Law - investigate the effect of mass on the extension of a spring.

Physics Coursework

Investigation into Hookes Law

Aim:

To investigate the effect of mass on the extension of a spring.

Prediction:

My prediction is that, as you increase the mass, the extension of the spring will also increase. E.g. the double the mass, the double the extension. So I am saying that the results should be near enough consistent while increasing in the extension until I reach the end of the experiment. I will now support this prediction with some scientific knowledge. Hookes law is when forces are applied to a solid object which can result in extension. Hookes law is also able to predict how a spring (or other stretchable object) when force is applied to it. So this will show extension into the spring after the force is applied.

Equipment:

The equipment which will be required for the testing of Hookes Law are:

• Clamp and Stand
• Weights 50grams each
• A measuring apparatus (preferable a 1 metre ruler)
• Spring

Diagram:

Fair Test:

I will try to keep this a fair test by only investigating 1 variable. So these are the things that will stay the same through out the experiment:

• The Thickness of the spring
• The length of the spring
• The material of the spring

The things that will vary throughout the experiment will be the mass and the extension. But I will only investigate and vary the mass myself because the extension will change as a cause of the mass being changed.

This test will be kept fair by using the same weights making sure they are all 50 grams and I will place them on the spring carefully and wait to measure it when the spring has stopped moving. The most important factor I ...