Hookes Law

Who discovered Hooke's law?

• Robert Hooke

• Charlie

• Newton

If the original length of a spring is 20m and its extended length is 30m. What is the extension?

• 20m

• 12m

• 75m

• 45m

• 10m

Tags

NGSS.MS-PS3-2

___________ is the unit of force

• Km

• cm

• m

• N/cm

• N

Tags

NGSS.HS-PS2-1

________________ force acts on an object when it falls.

• Gravity

• Electromagnet

• Upthrust

Tags

NGSS.HS-PS2-4

__________________ is the force acting on two rubbing hands

• Gravity

• Upthrust

• Friction

An elastic material can change shape when ________ is exerted on it.

• a force

• a moment

• an acceleration

Tags

NGSS.MS-PS2-2

When you apply a force to an object, the object can change shape. If tension is applied, the object may be stretched. We say the object has been __________.

• compressed

• extended

• twisted

The _________ of an object is the increase in its length when it is stretched.

• compression

• extension

Hooke's Law fails when a material reaches its:

• breakdown
• elastic limit
• end of 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