Materials

Question 1

What is a tensile and compressive force?

Answer 1

Tensile produce extention
Compressive shorten an object

Question 2

State Hooke’s Law.

Answer 2

The extention of a spring is directly proportional to the force applied as long as the elastic limit is not exceeded.

Question 3

What is elastic deformation and when does it occur?

Answer 3

When force is taken goes or origional shape, occurs within the linear region.

Question 4

What is plastic deformation and when does it occur?

Answer 4

Cannot go to origonal shape, occurs after limit of proportionality.

Question 5

Give another name for limit of proportionality?

Answer 5

Elastic limit.

Question 6

What does the ‘k’ represent in Hooke’s law?

Answer 6

Force constant is the measure of stiffness of the spring. Larger the FC the harder it is to extend.

Question 7

Give two examples other than a spring where Hooke’s law can be applied.

Answer 7

Wires under tention, concrete columns under compression.

Question 8

Investigate Hooke’s Law.

Answer 8

Spring on clamp with boss clamp stand. Secure to bench G-clamp. Add mass measure e with ruler.