Forces

Question 1

define elastic deformation

Answer 1

Where extended object returns to its original shape

Question 2

define inelastic deformation

Answer 2

Where an object which has been stretched remains in its new shape and doesn’t return to its original shape

Question 3

What is hook law?

Answer 3

F = Kx

Question 4

Define elastic limit

Answer 4

We’re too much force has been applied to an elastic object and it doesn’t stretch anymore – sometimes can become inelastically deformed

Question 5

if an object has a low spring constant is it more or less elastic?

Answer 5

More

Question 6

what is the equation linking elastic potential energy spring constant and extension?

Answer 6

elastic potential energy = 1/2 x spring constant x extension2

Question 7

define moment

Answer 7

The rotational, or turning effect of a force

Question 8

What is the equation for moment?

Answer 8

moment = force x distance

Question 9

What are two common examples of moments?

Answer 9

a spanner rotating around a bolt and a seesaw rotating around its pivot