Materials

Hooke's Law describes the behaviour of which kind of material under tension?

• plastic
• metals only
• elastic
• non-metals only

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

Tags

CCSS.8.EE.C.7B

Hooke's Law fails when a material reaches its:

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

What is the best description of the relationship shown in this graph?

• In this graph, the relationship between force and extension is linear.

• In this graph, the relationship between force and extension is non-linear.

• In this graph, the relationship between force and extension is directly proportional.

• In this graph, there is no relationship between force and extension.

In which side of the graph does the spring obey Hooke's law?

• To the left of point A

• To the right of point A

Which statement most accurately represents Hooke's Law?

• a) The stretch of a spring is directly proportional to the force applied.

• b) The stretch of a spring is proportional to the number of coils.

• c) The stretch of a spring is inversely proportional to the force applied.

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

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

• a force

• a moment

• an acceleration

Tags

NGSS.MS-PS2-2

What relationship exists between applied force and strain?

• direct

• indirect

• none at all

A ratio between force exerted per unit cross sectional area of a wire is known as

Pick the suitable units for stress?

• Newton per cubic meter

• Pascal

• Newton per square meter

• Newton