Topic 1.3 - Scalars And Vectors

Question 1

Scalar

Answer 1

Has only magnitude.

Question 2

Vector

Answer 2

Has magnitude and direction.

Question 3

Mass is a..

Answer 3

Scalar.

Question 4

Weight is a..

Answer 4

Vector.

Question 5

Speed is a..

Answer 5

Scalar.

Question 6

Velocity is a..

Answer 6

Vector.

Question 7

Acceleration is a..

Answer 7

Vector.

Question 8

Force is a..

Answer 8

Vector.

Question 9

Pressure is a..

Answer 9

Scalar.

Question 10

Temperature is a..

Answer 10

Scalar.

Question 11

Sine Rule

Answer 11

a/sin A = b/sin B = c/sin C

Question 12

Cosine Rule

Answer 12

a^2 = b^2 + c^2 - 2ab cos A

b^2 = a^2 +c^2 - 2ac cos B

c^2 = a^2 + b^2 - 2ab cos C

Question 13

A Scalar Quantity is what?

Answer 13

A quantity which can be described fully by giving its magnitude.

Question 14

A Vector Quantity is what?

Answer 14

A quantity that is described by both its magnitude AND its direction.

Question 15

The combined effect of two or more vectors is called?

Answer 15

The Resultant.

Question 16

Coplanar vectors may be added or subtracted using what?

Answer 16

A Vector Diagram.

Question 17

The resultant may be found with what to methods?

Answer 17

1. A Scale Drawing.

2. Calculation.

Question 18

The dividing of a vector into its components is know as?

Answer 18

The Resolution of a Vector.

Question 19

Pythagoras’ Theorem

Answer 19

h^2 = a^2 + b^2