Hooke's law

Question 1

What is the equation for Hooke’s law?

Answer 1

Force = K (spring constant) * extension

Question 2

A mass of 630g is hung on a spring. Using Force = gravity * mass, what is the force of the mass, acting on the spring?

Answer 2

0.63 * 10 = 6.3N

Question 3

What force would be needed to extend a spring with a spring constant k=5, 0.3m?

Answer 3

F = 0.3 * 5
= 1.5N