distance, displacement, speed and velocity

Question 1

speed, mass, distance and time are all examples of what physical quantity?

Answer 1

scalar

Question 2

velocity , weight, momentum, acceleration, force and displacement are all examples of what physical quantity?

Answer 2

vector

Question 3

How is velocity different from speed?

Answer 3

Speed and velocity are both measurements of the rate of travel. Speed tells us the rate at which an object is moving. Velocity tells us the rate at which an object is moving in a specific direction.

Question 4

which is a vector quantity speed or velocity?

Answer 4

velocity (remember both start with a ‘v’!)

Question 5

if there are 2 cars, both travelling at 0.5 m/s but one is moving north and one is moving south, what is the same and what is different?

Answer 5

their velocity is different but their speed is the same

Question 6

what is displacement?

Answer 6

the distance moved in a straight line, in a given direction, from the starting point (distance in a given direction)

Question 7

if an object goes 5m east and then 5m west what is its displacement?

Answer 7

0m, it will be back at its origin point

Question 8

give an example of when an object might have a constant speed but varying velocity

Answer 8

on a ferris wheel (any example when
changing direction but remaining at a constant speed)

Question 9

out of the following which is scalar and which is vector:
a) velocity
b) displacement
c) speed
d) distance

Answer 9

vector= velocity & displacement
scalar= speed & distance

Question 10

how can something have a constant speed but changing velocity?

Answer 10

if it’s moving in a circle

Question 11

a car travels 16m east, 25m south, then 16m west
a) what is the distance travelled by the car?
b) what is the displacement of the car?

Answer 11

a) 57m
b)25m