Forces and Elasticity

Question 1

In terms of elasticity, what can happen to an object when you apply a force on it?

Answer 1

• Compress
• Stretch
• Bend

Question 2

If we want an object to stay still, we always have to:

Answer 2

apply more than one force

Question 3

What are the 2 types of deformation?

Answer 3

• Elastic deformation, the object returns back to its original shape
• Inelastic deformation, the object keeps its deformed shape

Question 4

As we increase force on a spring, the extension will increase ______ (Hooke’s Law) until we hit the ______ ______, where the spring won’t go back to its ______ shape

Answer 4

proportionally
elastic limit
original

Question 5

What does the spring constant (k) (N/m) tell us about the object?

Answer 5

How many newtons it would take to stretch the object by 1m, the higher the spring constant, the stiffer the object

Question 6

Hooke’s law formula

Answer 6

Force = Spring Constant x Extension