4 Forces

Question 1

Hooke’s Law

Answer 1

Hooke’s Law states that the change in length of a material is directly proportional to the applied force

Question 2

Upthrust

Answer 2

Upthrust is the upward force exerted by a fluid on an object submerged fully or partially in the fluid due to the difference in pressure exerted by the fluid on the upper and lower surfaces of the object

Question 3

Moment

Answer 3

The moment of a force is defined as the product of the force and the perpendicular distance of the point from the line of action of the force

Question 4

Couple

Answer 4

A couple is a pair of forces acting on the same body that equal in magnitude and opposite in direction whose line of action do not coincide

Question 5

Torque

Answer 5

The torque of a couple is the product of one of the forces and the perpendicular distance between the forces