Hookes law and springs

Question 1

What is hookes law?

Answer 1

the extension of a spring is directly proportional to the force applied provided the limit of proportionality is not exceeded

Question 2

What is the formula for hookes law?

Answer 2

Force = spring constant x extension

Question 3

A force of 3n is applied to a spring the spring stretches reversibly meaning that it’ll go back to its normal shape after the force has been removed calculate the spring constant

Answer 3

1. k f/e
2. k= 3/0.15
   3.k=20n/m

Question 4

What is the limit of proportionality?

Answer 4

The point beyond which hookes law is no longer true when stretching a material

Question 5

What happens when the spring constant increases?

Answer 5

the higher the spring constant the stiffer the springs

Question 6

What happens when a force doubles?

Answer 6

if a force doubles the extension doubles

Question 7

What is the elastic limit of a material?

Answer 7

the furthest point a material can be stretched or deformed while being able to return to its previous shape

Question 8

What is it called when a material exceeds its elastic limit?

Answer 8

inelastic

Question 9

What is linear extension?

Answer 9

linear extension and elastic deformation can be seen below the limit of proportionality

Question 10

What is non linear extension?

Answer 10

non linear extension and inelastic deformation can be seen above the limit of proportionality

Question 11

When is work done in springs?

Answer 11

when a spring is extended or compressed

Question 12

What energy is stored in a spring?

Answer 12

elastic potential energy

Question 13

What is work done equal to?

Answer 13

elastic potential energy stored

Question 14

Equation for finding elastic energy stored or energy transferred

Answer 14

0.5 x spring constant x extension^2