P2 + 7 - Forces

Question 1

What does deformation mean

Answer 1

A change in the shape of an object as a result of forces being applied to it.

Question 2

What is elastic deformation

Answer 2

An object that does return to its original shape after the forces have been removed

Question 3

What is inelastic deformation

Answer 3

An object that does not return to its original shape after the forces have been removed

Question 4

What is plastic deformation

Answer 4

An object that does not return to its original shape after the forces have been removed

Question 5

Applying forces to an object can cause it to…

Answer 5

-Bend
-Compress
-Stretch

Question 6

What is Extension

refering to springs

Answer 6

The change in length of a spring when its stretched.

Can be negitive or possitve

Question 7

What is the minimum number of forces needed to deform and object

Answer 7

2

Question 8

Define spring constant

Answer 8

The measure of how many Newtons of force it would require to stretch (or compress) the object by 1 metre

Question 9

What is the units of spring constant

Answer 9

N/m

Question 10

What is the effect of a higher spring constant

Answer 10

More force needs to be applied to deform it

Question 11

What does hookes law state?

Answer 11

Hooke’s Law states that the extension of an object is directly proportional to the force applied