topic 1 : motion

Question 1

scalar quantity

Answer 1

has magnitude but no direction

Question 2

vector quantity

Answer 2

has magnitude AND direction

Question 3

examples of scalar quantities

Answer 3

distance
energy
mass 
speed
temperature

Question 4

examples of vector quantity

Answer 4

displacement
weight
acceleration
velocity

Question 5

what is velocity

Answer 5

velocity is speed with stated direction

Question 6

what is the equation for average speed

Answer 6

average speed = distance/time

m/s m s

Question 7

state the speeds that you need to know

Answer 7

wind - 5-20 m/s
walking - 1.4 m/s
running - 3 m/s
cycling - 5 m/s
plane - 250 m/s
sound - 240 m/s

Question 8

name a lab method to test speed

Answer 8

light gates

Question 9

equation for accelaration

Answer 9

change in speed/time

final speed - initial speed/time
a=v+u/t

Question 10

what is distance

Answer 10

Distance is how far an object moves.
Distance is a scalar quantity.
This is because it contains a magnitude (size) but not a direction

Question 11

displacement

Answer 11

Displacement is the distance an object moves in a straight line from a starting point to a finishing point.
Displacement is a vector quantity.
This is because it contains a magnitude (size) and direction