Hooke's Law

The graph shows the relationship between force and extension as a spring is extended. What is the name of point A?

• Point A is the limit of proportionality

• Point A is the limit of extension.

• Point A is the optimum force.

• Point A is the limit of force.

If a spring is extended beyonds it elastic limit, what two things does this mean for the spring?

• The spring will no longer return to its original length.

• The spring will bounce back to its original length.

• The spring will no longer extend.

• The spring will no longer obey Hookes Law.

What type of force is shown inside of the picture?

• Friction

• Elastic

• Tension

• Gravitational

Tags

NGSS.MS-PS2-4

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

• A

• B

• C

• D

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?

• 50N

• 22cm

• 20N

• 50cm

Tags

NGSS.MS-PS2-2

A stiff material has a:

answer choices

• spring constant of any value

• spring constant which is difficult to predict

• low spring constant

• high spring constant

If extension = Stretched length - original length. What is the extension of spring D.

• 0mm

• 3mm

• 2mm

• 1mm

A spring with spring constant 16 N/m is compressed by 0.5 m. How much energy is stored in the spring?

• 1 J

• 0.25 J

• 2 J

• 16 J

Tags

NGSS.MS-PS3-2

The equation for spring force is

(Hint - Hooke's Law)

• F_sp = mgh

• F_sp = 1/2kx²

• F_sp = Fd

• F_sp = -kx

A graph of force vs extension/defelction 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