Hooke's Law: Force, Extension, and Deformation in Springs

This video tutorial explores the relationship between force and spring extension, focusing on Hooke's Law. It explains how force affects spring deformation, either by compression or extension, and provides examples to calculate force, spring constant, and extension. The video also distinguishes between elastic and plastic deformation, illustrating how springs behave under different forces.

What is the natural length of a spring?

• The length of the spring when a force is applied

• The length of the spring when no force is applied

• The length of the spring when fully compressed

• The length of the spring when fully extended

According to Hooke's Law, what is the relationship between force and spring extension?

• Force is equal to the square of the extension

• Force is unrelated to extension

• Force is directly proportional to extension

• Force is inversely proportional to extension

If a spring with a constant of 200 N/m is extended by 0.08 meters, what is the force applied?

• 16 N

• 20 N

• 10 N

• 25 N

What is the spring constant if a force of 250 N compresses a spring by 0.125 meters?

• 1000 N/m

• 1500 N/m

• 2500 N/m

• 2000 N/m

What happens to a spring during elastic deformation?

• It permanently changes shape

• It returns to its original shape

• It breaks

• It becomes longer than its original length

In which section of the graph does a spring obey Hooke's Law?

• Blue section

• Green section

• Yellow section

• Red section

What characterizes plastic deformation?

• The spring returns to its original shape

• The spring becomes more elastic

• The spring becomes shorter

• The spring does not return to its original shape