ELASTICITY 2

If F is force, k is spring constant and x is extension, Hooke's Law tells us that:

• F = k/x

• x = Fk

• k = Fx

• F = kx

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 spring has a spring constant of 5N/cm.  What is its extension when loaded with 15N?

• 4cm

• 5cm

• 3m

• 3cm

What Quantity can you calculate from the graph and give the magnitude of that quantity.  

• spring constant 200 N/m

• distance 4.5 m

• Force 15 N

• spring constant 20 N/m

What type of force is shown inside of the picture?

• Friction

• Elastic

• Tension

• Gravitational

Tags

NGSS.HS-PS2-4

Which statement most accurately represents Hooke's Law?

• Extension of a spring is proportional to the number of coils

• Thickness of a spring wire is proportional to the force applied.

• Extension of a spring is proportional to the force applied.

• Extension of a spring is inversely proportional to the force applied.

Spring constant is measured in

• N

• m

Which graph shows the correct relationship between the force, F, and the extension, x of a spring?

• A

• B

• C

• D

............. is an example of elastomer

• Rubber

• Gold

• Glass

• Copper

Tags

NGSS.MS-PS1-3

For a metal wire, Hooke's Law is valid upto..........

• breaking point

• proportionality limit

• yield point

• elastic limit