Scalars And Vectors?

Question 1

What is a vector?

Answer 1

any physical quantity that has a direction as well as a magnitude

Question 2

What is a scalar?

Answer 2

any physical quantity that is not directional

Question 3

Give examples of scalars?

Answer 3

length
distance
area
volume

Question 4

in simple terms, what is a vector and a scalar?

Answer 4

a vector, has both size and diretion a scalar, has only size and no direction

Question 5

State the conditions for equilibrulium of a body?

Answer 5

The resultant force must be zero.If there are only three forces, they must form a closed triangle. Principle of moments must apply(ie, the moments of the forces about the same point must balance out.)

Question 6

What is equilibrium?

Answer 6

An object in equilibrium is either at rest or moving with a constant velocity. The forces acting on it must give zero resultant and their turning effects must balance out as well.