Scalars and Vectors

Question 0

What is a Scalar quantity ?

Answer 0

A quantity with only magnitude (size)

Question 1

Name 2 physical quantities?

Answer 1

Scalar and Vector Quantities

Question 2

Give 5 examples of Scalar quantities

Answer 2

Mass, Length, Temperature, Time, Volume

Question 3

What is a Vector quantity?

Answer 3

A quantity with both magnitude and direction

Question 4

Give 5 examples of a Vector quantity

Answer 4

Velocity, Acceleration, displacement, force, weight

Question 5

How is a vector quantity represented graphically

Answer 5

By a straight line and arrow head, the length of the arrow gives the Magnitude and the and the arrow gives the direction.

Question 6

How do you find the resultant if two vectors act the same direction

Answer 6

You find the sum of their values

Question 7

How do you find the resultant of the vectors act in opposite direction

Answer 7

You find the difference of the values

Question 8

What is Parallelogram’s law

Answer 8

If two forces acting at that point I represented in size and direction by the sides of a parallelogram drawn from the point, the resultant is represented by the size and direction by the diagonal of the parallelogram drawn from the point.