Physics of Materials Quiz

Which property of material is NOT due to plastic deformation?

• Brittle

• Ductile

• Ability to bend

• Ability to withstand stress

Which point on the stress-strain curve occurs after the proportionality limit?

• Elastic limit

• Upper yield point

• Lower yield point

• Ultimate point

Young’s modulus is defined as

• Strain / stress

• Stress / strain

• Strain x stress

• Length / area

Which of the following best describes Young’s modulus?

• Ratio of stress to strain

• Measure of material stiffness

• Proportionality constant in Hooke's law

• Ratio of strain to stress

The pressure that seawater exerts on a submerged submarine is called

• Underwater pressure.

• Liquid pressure.

• Submerged pressure.

• Hydrostatic pressure

The upward force that a fluid exerts on an object submerged in it is referred to as

• Buoyant force.

• Fluid resistance.

• Hydrostatic lift.

• Pressure differential

Which one of the following is the CORRECT equation?

• P_abs = P_atm - ρgh

• P_abs = P_atm + ρgh

• P_atm = P_abs + ρgh

• P_atm = ρgh

The continuity equation is based on the principle of

• conservation of mass

• conservation of force

• conservation of energy

• conservation of momentum

The Bernoulli's equation is based on the law of

• conservation of mass

• conservation of force

• conservation of energy

• conservation of momentum

Frictional effect between layers of flowing fluid is known as

• viscosity

• friction

• gravity

• surface tension