Physics Quiz Chapter 3

Scalar

Magnitude with no direction

Vector

Magnitude AND Direction

Scalar Examples

• Speed

• Volume

• # of pages on a book 

Vector Examples

• Displacement

• Velocity

• Acceleration

magnitude ; direction. 

A vector quantity has both _______ and _________.

magnitude. 

A scalar quantity only has _________.

velocity ; scalar

An example of a vector quantiy is _______ while an example of a _________ quanity is speed. 

b. the number of passengers on the plane

c. the duration of the flight

e. the amount of fuel requared for the flight.

Which of the following quantities are scalars?

a. the acceleration of a plane as it takes off

b. the number of passengers on the plane

c. the duration of the flight

d. the displacement of the flight

e. the amount of fuel required for the flight

a. the acceleration of a plane as it takes off

d. the displacement of the flight

Which of the following quantities are vectors?

a. the acceleration of a plane as it takes off

b. the number of passengers on the plane

c. the duration of the flight

d. the displacement of the flight

e. the amount of fuel required for the flight

To find Magnitude

• Pythagorean Theorem 

• Formula: c² = a² + b² 

To find Direction 

• Inverse Tangent Function

• Formula: 𝜃 = tan^-1 (opposite/adjacent)

Sine (-)

= opposite leg / hypotenuse

Cosine (-)

= adjacent leg / hypotenuse