Bennett Mechanical Test Springs and Elasticity 2

Question 1

A spring is stretched beyond its elastic limit. What happens when the force is removed?

Accepted Answer

It becomes permanently deformed

Answer

It returns to its original length

Answer

It becomes stiffer than before

Answer

It breaks immediately

Question 2

A spring with constant 100 N/m stores 50 J of elastic potential energy. How far is it compressed?

Accepted Answer

1 m

Answer

0.5 m

Answer

2 m

Answer

0.25 m

Question 3

A stiffer spring has a _____ spring constant.

Accepted Answer

Higher

Answer

Lower

Answer

Variable

Answer

Negative

Question 4

What happens to the period of oscillation of a mass on a spring if the mass is increased?

Accepted Answer

Period increases

Answer

Period decreases

Answer

Period stays the same

Answer

Period becomes unpredictable

Question 5

A spring with a constant of 200 N/m is stretched 5 cm (0.05 m). What is the restoring force?

Accepted Answer

10 N

Answer

4000 N

Answer

0.025 N

Answer

4 N

Question 6

Which type of spring stores energy primarily through twisting rather than compression or extension?

Accepted Answer

Torsion spring

Answer

Compression spring

Answer

Extension spring

Answer

Constant force spring

Question 7

Rubber bands demonstrate elastic behavior because they:

Accepted Answer

Return to their original shape after stretching

Answer

Cannot be stretched at all

Answer

Break when stretched slightly

Answer

Permanently deform when stretched