P2.3.1 - Stretching Springs

Question 1

What are materials that stretch but do not return to their original shape called?

Answer 1

Plastic

Question 2

How many forces do you need to stretch, bend or compress an object?

Answer 2

More than 2

Question 3

Who was investigating what happens when you stretch materials?

Answer 3

Robert Hooke

Question 4

When was Robert Hooke investigating what happens when you stretch materials?

Answer 4

1660

Question 5

What is the limit of proportionality?

Answer 5

The point up to where force and extension have a linear relationship in a spring

Question 6

What is the elastic limit?

Answer 6

The limit up to which a spring will return to its normal shape after it has stretched

Question 7

What happens to the extension if the force exerting on a spring was doubled?

Answer 7

It would double

Question 8

What is Hooke’s Law?

Answer 8

The extension of a spring is proportional to the force until you reach limit of proportionality

Question 9

What is the equation to calculate the force on a spring?

Answer 9

Force exerted by spring = spring constant * extension

Question 10

What is the gradient of a force against extension graph?

Answer 10

Spring constant