PLTW POE EoC Review Part 2

Energy resources that have an unlimited quantity are...

• Renewable

• Non-Renewable

• Unreliable

• Inexhaustible

What is the Modulus of Toughness?

• The measure of a material's ability to plastically deform without breaking.

• Unrecoverable elongation will not return to original shape

• Recoverable elongation, will return to original shape

• The ratio of the increment of some stress to some strain, the ability of a material to resist

  stretching.

What is the Elastic Region?

• The measure of a material's ability to plastically deform without breaking.

• Unrecoverable elongation will not return to original shape

• Recoverable elongation, will return to original shape

• The ratio of the increment of some stress to some strain, the ability of a material to resist

  stretching.

This is a structure that can be mathematically solved.

• Static Determinate

• Static Equilibrium

• Static Indeterminate

Moment of inertia is a diagram used to isolate a body from its environment showing all external forces acting on it.

• True

• False, it is a property of a cross section that is concerned with a surface area and how the area is distributed

  about a centroidal axis.

What is the Modulus of Elasticity?

• The measure of a material's ability to plastically deform without breaking.

• Unrecoverable elongation will not return to original shape

• Recoverable elongation, will return to original shape

• The ratio of the increment of some stress to some strain, the ability of a material to resist

  stretching.

A parallel circuit only has one path for energy to flow.

• True

• False

What is the Plastic Region?

• The measure of a material's ability to plastically deform without breaking.

• Unrecoverable elongation will not return to original shape

• Recoverable elongation, will return to original shape

• The ratio of the increment of some stress to some strain, the ability of a material to resist

  stretching.

efficiency =

• De/Dr

• AMA/IMA

• AMA/IMA(100)

• Fr/Fe

Static equilibrium occurs in a truss system when...

• The product of the moments is equal to zero.

• The sum of the moments is equal to

  zero.

• When everything equals zero.