Mechanics Quiz

The branch of mechanics that deals with bodies at rest is called:

• Dynamics

• Kinetics

• Statics

• Kinematics

The SI unit of force is:

• Dyne

• Newton

• Pascal

• Joule

The quantity that represents both magnitude and direction is:

• Scalar

• Point

• Vector

• Plane

Which law states that a body remains in a state of rest or uniform motion unless acted upon by an external force?

• Newton's Second Law

• Newton's First Law

• Newton's Third Law

• Hooke’s Law

Two equal and opposite forces acting along the same line are called:

• Couple

• Coplanar forces

• Collinear forces

• Concurrent forces

The resultant of two equal forces acting at an angle θ is:

• F√2

• 2Fcos(θ/2)

• 2Fsin(θ/2)

• F

A force that produces rotation without translation is:

• Torsion

• Moment

• Couple

• Centripetal

The point through which the entire weight of a body acts is called:

• Moment center

• Neutral axis

• Center of gravity

• Centroid

In a free-body diagram, the object is:

• Attached to the ground

• Replaced by its boundary

• Replaced by a point

• Isolated from surroundings

The principle of transmissibility of forces is valid for:

• Rigid bodies only

• Elastic bodies

• Plastic bodies

• Fluids