1.3 Do Now

Match the following quantities with their symbols

• t

• time

• d

• distance

• v_f

• average velocity

• v_i

• initial velocity

  (before)

• 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

• distance

• speed in a given direction

• velocity

• distance traveled / time taken

• acceleration

• the length of the actual path an object takes

• motion sensor

• change in velocity / time taken

• speed

• an object that measures distance using sound