distance, displacement, speed and velocity

Question 1

which are scalar and which are vector?

Answer 1

S-distance and speed
V-displacement and velocity

Question 2

what is the equation that links distance travelled, speed and time?

Answer 2

distance travelled (m) = speed (m/s) x time (s)
s=vt

Question 3

what is distance?

Answer 3

how far an object has moved, DOESN’T involve direction

Question 4

what is displacement?

Answer 4

the distance and direction in a straight line from an object’s starting point to its finishing point

Question 5

what is your distance and displacement if you walk 5m north, then 5m south?

Answer 5

distance-10m
displacement-0m

Question 6

what is the distance between speed and velocity?

Answer 6

Speed is how fast you are going with no regard to the direction e.g 30mph. Velocity is speed in a given direction e.g 20m/s, 060°.

Question 7

how can an object be travelling at a constant speed but have a changing velocity?

Answer 7

if it is changing direction whilst staying the same speed

Question 8

describe the speed and velocity on an object moving in a circle

Answer 8

the speed is constant but it has a constantly changing velocity (as the direction is always changing)

Question 9

what are the typical speeds for a person walking, running and cycling?

Answer 9

walking-1.5m/s
running-3m/s
cycling-6m/s

Question 10

what are the typical speeds for a car, train and a plane?

Answer 10

car-25m/s
train-55m/s
plant-250m/s

Question 11

what is the equation that links speed, distance and time?

Answer 11

speed=distance/time
s=d/t

Question 12

list 3 factors which can affect wind speed

Answer 12

temperature
atmospheric pressure
buildings or structures

Question 13

list 3 factors which can affect the speed of a person walking

Answer 13

their fitness
their age
the terrain