Investigating the Factors Which Will Affect the Stretching of a Helical Spring when Put Under a Load.
Aim: To investigate and analyse the factors which will effect the
stretching of a Helical Spring when put under a load of weights.
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Theory:
Things, which might affect this, are:
· Downward force applied to the spring.
· Spring material.
· Length of spring.
· No. of coils in spring.
· Diameter of spring material.
· Cross sectional area of spring.
However, most of these do not come into play, apart from weight, as we
are using the same type of weights.
Hooke's Law:
* Hooke's law states that the extension of a spring (or other
stretch object) is directly proportional to the force acting on
it.
* This law is only true if the elastic limit of the object has not
been reached.
* If the elastic limit has been reached the object will not return
to its original shape and may eventually break.
If the experiment is correctly done, the law should show to be true.
Prediction: I predict that the greater the weight applied to the
spring, the further the spring will stretch. This is because extension
is proportional to load and so if load increases so does extension and
so stretching distance.
Equipment:
* 25swg Copper
* 26swg Nichrome
* 32swg Constantin
* 32swg Nichrome
* Stand
* Clamp
* Ruler
* Weights
* Hook
Method
Step 1: Collect all equipment
Step 2: Set-up as diagram below shows.
Step 3: Get a Copper wire, and using a cylindrical object (same size
all the time), wrap around to create a spring.
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Newton’s second law of motion, “Acceleration is produced when a force acts on a mass. The greater the mass ...
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