Vectors Part 2: Scalars

Question 1

What value does a Scalar Quantity have?

Answer 1

A numerical value.

Question 2

Does the Scalar Quantity follow the magnitude or the direction?

Answer 2

Magnitude.

Question 3

Can a Scalar Quantity be
 positive, 
zero, 
negative, 
or all of the above?

Answer 3

All of the above.

Question 4

State a few Scalar quantities.

Answer 4

Time: Time—t, period—T, and frequency—f
Motion: Distance—d and speed—v
Energy: Kinetic energy—K or KE and potential energy—U or PE
Mass: Mass—m and density—ρ
Gases: Pressure—P, volume—V, and temperature—T
Electricity: Charge—q or Q and potential (voltage)—V
Circuits: Current—I, resistance—R, and capacitance—C