1.3 Do Now

Match the following quantities with their symbols

• t

• average velocity

• time

• d

• initial velocity

  (before)

• v_f

• distance

• v_i

• final velocity

  (after)

What is the speed of car Y? Show appropriate units.

Describe what is happening to the speed of car B? How do you know from the graph? (as time increases...)

What is the equation for average speed?

Match the following quantities with their definitions

• speed

• speed in a given direction

• motion sensor

• the length of the actual path an object takes

• velocity

• change in velocity / time taken

• acceleration

• distance traveled / time taken

• distance

• an object that measures distance using sound