QUIZ(CO2) - Properties of Matter

Which of the following is not a fundamental physical quantity?

• Length

• Time

• Force

• Mass

The SI unit of force is:

• Newton (N)

• Joule (J)

• Pascal (Pa)

• Watt (W)

Which law states that an object in motion stays in motion unless acted upon by an external force?

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• Law of Gravitation

Newton's Second Law relates which of the following quantities?

• Force, velocity, and time

• Force, mass, and acceleration

• Energy, power, and work

• Force, momentum, and time

Elasticity refers to the property of a material to:

• Resist motion

• Return to its original shape after deformation

• Absorb energy

• Break under stress

The slope of the stress-strain curve in the elastic region gives:

• Modulus of elasticity

• Yield strength

• Ultimate strength

• Fracture point

The torsion pendulum is primarily used to determine which property of a material?

• Thermal conductivity

• Modulus of rigidity

• Young's modulus

• Density

The period of oscillation of a torsion pendulum depends on:

• Mass of the pendulum

• Length of the string

• Moment of inertia and modulus of rigidity

• Temperature

In the bending of beams, the bending moment is defined as:

• The product of force and perpendicular distance from a point

• The force acting on a beam

• The change in shape due to force

• The deformation of a beam under load

I-shaped girders are commonly used in construction because they:

• Are cheaper to manufacture

• Can resist bending and twisting effectively

• Have a uniform weight distribution

• Are easier to transport