9.2 Velocity and acceleration

Question 1

what does velocity mean

Answer 1

speed in a given direction

Question 2

two moving objects can have different velocities but the same? give an e.g

Answer 2

speed

car travelling north at 30m/s on motorway has same speed as car travelling south at 30m/s but different velocities

Question 3

An object that travels at a constant velocity travels at a constant…

Answer 3

speed without changing direction

Question 4

What does displacement mean

Answer 4

distance travelled in a given direction

Question 5

what is the acceleration of an object?

Answer 5

its change of velocity per second

Question 6

what is the unit of acceleration

Answer 6

m/s^2

Question 7

any object with a changing velocity is?

Answer 7

accelerating

Question 8

formula for acceleration is?

Answer 8

change in velocity V(m/s) / time taken for the change T(sec)

Question 9

change of velocity = final velocity V - initial velocity U

acceleration= V - U / T