P2.3-Forces in Action

Question 1

How d9 you change the shape of an object

Answer 1

You have to use a forceful compress,stretch and

Bend objects but you need more than one force to do it

Question 2

What is the limit of proportionality

Answer 2

The limit of proportionality is the furthest point at which the extension and force abide by Hooke’s law which is that the force and extension are proportional to each other. It also means up to this point the spring is elastically deformed.

Question 3

How do you calculate the spring constant

Answer 3

Force exerted by a spring(N)= spring constant(N/m)*extension(m)

Question 4

What does the gradient at the graph of force tell you

Answer 4

The gradient of the linear section of the graph of force against extension is the spring constant.

Question 5

How do you calculate the energy transferred in stretching a spring

Answer 5

Energy transferred in stretching(J)=0.5Spring Constant(N/m)(extension(m))squared

Question 6

What is energy transferred also known as

Answer 6

Work done

Question 7

What is a gravitational field

Answer 7

A region where a mass experiences an attractive force.

Question 8

How do you calculate gravity force

Answer 8

Gravity Force(N)=Mass(kg)*gravit