Forces

Question 1

is force a vector or scalar quantity

Answer 1

vector

Question 2

mass

Answer 2

mass is the quantity of matter in the object

Question 3

is mass a vector or scalar quantity

Answer 3

scalar

Question 4

weight

Answer 4

weight is the gravitational force exerted by the earth on the object. Weight always acts down towards the Centre of the earth.

Question 5

The normal Force

Answer 5

this is the force exerted by a surface on an object with which it is in contact. The normal force always acts at 90 degrees to the surface and it is equal to the force which the object exerts on the surface.

Question 6

Friction

Answer 6

is a force that acts to oppose motion. Friction is caused by one surface dragging over another surface and it acts parallel to the surfaces that are in contact.

Question 7

Tension

Answer 7

A force that acts through a rope is called tension

Question 8

equilibrium

Answer 8

When all the forces acting on an object balance, the resultant of the forces must be zero.

Question 9

Equilibrant

Answer 9

when 3 forces balance ,the resultant of any 2 of the forces is balanced by the third force. We call this balancing force the Equilibrant. It has the same magnitude as the resultant but lies in the opposite direction.