forces and elasticity

Question 1

what type of materials will always return to original length or shape when we remove forces acting on them?

Answer 1

elastic materials

Question 2

in order to stretch, bend or compress and object, what must be applied?

Answer 2

more than one force

Question 3

what happens to an object when only one force is applied onto an object?

Answer 3

it just moves in that direction

Question 4

what is deformation?

Answer 4

changing shape

Question 5

what is elastic deformation?

Answer 5

when an object returns to original shape when force has been removed

Question 6

what is an example of an elastic material?

Answer 6

elastic band

Question 7

what is inelastic deformation?

Answer 7

when an object does not return to original shape when force has been removed

Question 8

what is an example of an inelastic material?

Answer 8

spring when pulled too far

Question 9

what is force directly proportional to?

Answer 9

force is directly proportional to extension