Forces and Elasticity

Question 1

When is work done and energy transferred

Answer 1

When an object is deformed

Question 2

What does Hooke’s Law say about the extension of a spring

Answer 2

Hooke’s law says:
the amount it stretches (extension, e) is directly proportional to the force applied

Question 3

Give the formula for Hooke’s law

Answer 3

Hooke’s law
F = K x e
K = the Spring constant

Question 4

What is equilibrium

Answer 4

Equilibrium means all the forces are balanced

Question 5

What does it mean when a stretched or compressed springs holds a weight still

Answer 5

Force of the weight is the same as the force of the spring as it tries to return to its original shape.
So the forces are balanced and equilibrium