2.3: GCSE Physics: Hooke's Law

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

• Spring Constant × Extension

• Spring Constant ÷ Extension

• Spring Constant + Extension

A bungee rope has a spring constant of 5N/m. How much a person must weighs in Newton if we want it to extend (stretch) 10m?

• 20N

• 22cm

• 50N

• 50cm

• 21N

Tags

NGSS.MS-PS2-2

___________ is the unit of force

• Km

• cm

• m

• N/cm

• N

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

________________ force acts on an object when it falls.

• Gravity

• Electromagnet

• Upthrust

Tags

NGSS.MS-PS2-4

Which of the following is a true statement regarding springs?

• The higher the value of the spring constant, the stiffer the spring.  
• In Hooke's law, the force exerted by the spring acts in the same direction as displacement.  
• Springs are designed to provide unpredictable variations in force.  
• The force exerted by a spring has a quadratic relationship with the displacement form equilibrium.  

A 24,000 N Car is supported by 4 springs. If each spring is deflected by 0.5 m what is the spring constant?

• 12,000 N /m

• 48,000 N/m

• 630,000 N/m

• 120,000 N/m

Tags

NGSS.HS-PS2-1

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

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

A stiff material has a:

• high spring constant
• low spring constant
• spring constant of any value
• spring constant which is difficult to predict