A-LEVEL PHYSICS: 4.1.1: Scalars & Vectors (SaveMyExams)

Question 1

All Quantities can be one of two types: (2)

Answer 1

-Vector

-Scalar

Question 2

What are ‘Scalar Quantities’?

Answer 2

Scalar Quantities are Quantities with Only Magnitude.

Question 3

Mass is a ___ Quantity. Why?

Answer 3

Scalar. Because it has Magnitude but No Direction.

Question 4

What are ‘Vector Quantities’?

Answer 4

Vectors are Quantities that have both Direction & Magnitude.

Question 5

Weight is a ___ Quantity. Why?

Answer 5

Vector. Because it has both Direction & Magnitude.

Question 6

What is ‘Distance’?

Answer 6

Distance is a Measure of how Far an Object has Travelled, Regardless of Direction.

Question 7

Distance is a ___ Quantity. Why?

Answer 7

Scalar. Because it has Magnitude, but No Direction.

Question 8

What is ‘Displacement’?

Answer 8

Displacement is a Measure of how Far it is Between 2 Points in Space, Including the Direction.

Question 9

Displacement is a ___ Quantity. Why?

Answer 9

Vector. Because it has both Direction & Magnitude.

Question 10

What is ‘Speed’?

Answer 10

Speed is a Measure of the Distance Travelled by an Object Per Unit Time, Regardless of the Direction.

Question 11

Speed is a ___ Quantity. Why?

Answer 11

Scalar. Because it has Magnitude, but No Direction.

Question 12

What is ‘Velocity’?

Answer 12

Velocity is a Measure of the Displacement of an Object Per Unit Time, Including the Direction.

Question 13

Velocity is a ___ Quantity. Why?

Answer 13

Vector. Because it has Both Direction & Magnitude.

Question 14

Vectors are Represented by ___:

Answer 14

Arrows.

-The Arrowhead Indicates the Direction.
-The Length of the Arrow Represents the Magnitude.

Question 15

Vectors Can be Combined by ___ them to Produce the…

Answer 15

Adding, Resultant Vector.

Question 16

There are 2 Methods that Can be Used to Add Vectors: (2)

Answer 16

-Calculation (if the Vectors are Perpendicular).

-Scale Drawing (if the Vectors are Not Perpendicular).

Question 17

Calculating the Resultant Force & Angle Can be Calculated by:

Answer 17

Pythagoras’ Theorem, Trig, etc…