Investigating Springs

# You can investigate the link between force and extension

Set up the **apparatus** and make sure you can extra masses, then **measure** the mass of each and calculate the weight using **W=mg**

Measure the natural length of the spring with a

**millimetre**ruler clamped to the stand. Make sure you take the reading at**eye level**and add a**marker**to the bottom of the spring to make the reading more**accurate**Add a

**mass**to the spring and**allow**it to come to rest. Record the mass and measure the new length of the spring. The extension is the change in length**Repeat**this process until you have enough measurements, no fewer than 6Plot a

**force-extension graph**of your results. It will only start to curve if you exceed the limit of proportionality.

# You can work out energy stored for linear relationships

As long as a spring is not stretched past its limit of proportionality, the work done in stretching a spring can be found using:

**Ee=1/2ke2**For elastic deformation, this formula can be sued to calculate the energy stored in a spring’s elastic potential energy store. It’s also the energy transferred to the spring as it’s deformed

# Investigating Springs

# You can investigate the link between force and extension

Set up the **apparatus** and make sure you can extra masses, then **measure** the mass of each and calculate the weight using **W=mg**

Measure the natural length of the spring with a

**millimetre**ruler clamped to the stand. Make sure you take the reading at**eye level**and add a**marker**to the bottom of the spring to make the reading more**accurate**Add a

**mass**to the spring and**allow**it to come to rest. Record the mass and measure the new length of the spring. The extension is the change in length**Repeat**this process until you have enough measurements, no fewer than 6Plot a

**force-extension graph**of your results. It will only start to curve if you exceed the limit of proportionality.

# You can work out energy stored for linear relationships

As long as a spring is not stretched past its limit of proportionality, the work done in stretching a spring can be found using:

**Ee=1/2ke2**For elastic deformation, this formula can be sued to calculate the energy stored in a spring’s elastic potential energy store. It’s also the energy transferred to the spring as it’s deformed