Forces and elasticity

Question 1

What is energy?

Answer 1

energy is the property that must be transferred to an object in order to perform work on, or to heat, the object.

Question 2

What is meant by a material with elastic properties?

Answer 2

If when a force is applied, the object stretches or compresses, then returns to its natural shape as soon as the force is removed.

Question 3

What is meant by a material with plastic properties?

Answer 3

If when a force is applied, the object stretches or compresses then remains the same even after the fore has been removed.

Question 4

What law do we use when dealing with the stretching or springs or wires?

Answer 4

HOOKES LAW

Question 5

What is the equation for hookes law?

Answer 5

Spring constant = force/extension

Question 6

What equipment is needed when proving Hookes law?

Answer 6

A meter ruler, a clamp and stand and a spring, and a weight.

Question 7

How do you carry out the experiment?

Answer 7

Attach the spring to the clamp and measure the original length, then after this add a weight and measure the extension. Keep doing this and add more weight each time.

Question 8

What does the graph showing spring extension show?

Answer 8

A directly proportional set of results, UNTIL the spring reaches its elastic limit where it cannot stretch any more or revert to its original shape.