Chapter 10.5 Forces and elasticity

Question 1

Write Hooke’s law as an equation.

Answer 1

Force applied, F (N) = Spring constant, k (N/M) X extension, e (m)

Question 2

What is the equation for the extension of the strip of material or spring at any stage?

Answer 2

Extension of the strip of material or spring at any stage=

length at the stage - original length

Question 3

When is an object called elastic?

Answer 3

An object is called elastic if it returns to its original shape after removing the force deforming it.

Question 4

What is the extension of a spring directly proportional to?

Answer 4

The extension of a spring is directly proportional to the force applied to it, as long as the limit of proportionally is not exceeded. This relationship is linear.

Question 5

What is the definition of the extension?

Answer 5

The increase of length from the original is called the extension.

Question 6

What is the triangle that links force applied F, Spring constant k, and extension?

Answer 6

K X e