P2.3.1 - Stretching springs

Question 1

What are elastic bodies?

Answer 1

Objects that return to their original shape when the deforming force is removed

Question 2

What are plastic bodies?

Answer 2

Objects that do not return to their original shape when the deforming force is removed

Question 3

What is the limit of proportionality?

Answer 3

The point beyond which extension is no longer proportional to force

Question 4

What is elastic limit?

Answer 4

The force beyond which an object does not return its original shape when the force is removed

Question 5

What is Hooke’s Law?

Answer 5

The extension of a body is directly proportional to the force applied as long as the limit of proportionality is not exceeded

Question 6

What is spring constant?

Answer 6

It tells you how stiff the string is or how difficult it is to stretch

Question 7

How do calculate the spring constant?

Answer 7

force exerted by a spring(N) = spring constant(N/m) x extension(m)