Week 1

Question 1

Distance

Answer 1

length between A and B using actual path

Question 2

Displacement

Answer 2

length between A and B in a straight line

Question 3

Speed

Answer 3

speed = distance / time

Question 4

Velocity

Answer 4

speed in a specific direction

Question 5

Acceleration

Answer 5

change in a state of motion

Question 6

What is the difference between a Proportionality Statement and an equation?

Answer 6

Proportionality Statement: ‘how do these variables relate?’

Equation: ‘By how much do these variables relate?’

Question 7

What is the difference between Distance and Displacement?

Answer 7

Distance is the actual path taken between A and B, Displacement is the length between A and B in a straight line.

Question 8

Differentiate between Instantaneous Speed and Average Speed.

Answer 8

Instantaneous speed is the speed in one instant (e.g a car speedometer), Average speed is the average speed over an amount of time.

Question 9

Differentiate between Speed and Velocity.

Answer 9

Velocity has a specific direction, whereas speed does not require a direction.

Question 10

What is the mathematical equation for the relationship between acceleration and velocity?

Answer 10

acceleration is the change of velocity per time interval:

A = (triangle symbol)V / (triangle symbol)t