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According to Hooke's law; Force is equal to -

• Spring Constant × Extension

• Spring Constant ÷ Extension

• Spring Constant + Extension

___________ is the unit of force

• Km

• cm

• m

• N/cm

• N

The spring constant of an object tells you?

• What type of spring you are dealing with

• How long the spring will stretch or compress

• It gives you a value on how easy or hard it is to change the objects length.

• A spring constant gives you a number which tells you what material the spring is made of.

When you stretch a rubber band, you are storing __________ energy. 

• kinetic 
• potential
• none of the above
• all of the above 

Can energy be destroyed

• no
• yes

Energy can be _____________ or changed from one type to another.

• destroyed
• transferred
• created
• ignored

Hooke's Law fails when a material reaches:

• breakdown
• its elastic limit
• end of its tether
• fracture stress

A graph of extension against force for an elastic material is:

• A downward curve
• An upward curve
• A straight line from any point on the x and y axis
• A straight line from the origin

Which statement most accurately represents Hooke's Law?

• a) Extension of a spring is proportional to the force applied.
• b) Extension of a spring is proportional to the number of coils.
• c) Extension of a spring is inversely proportional to the force applied.
• d) Thickness of a spring wire is proportional to the force applied.

According to Hooke's law; Force is equal to -

• Spring Constant × Extension

• Spring Constant ÷ Extension

• Spring Constant + Extension