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Speed and Velocity
Examples
Speed and Velocity Formulas
1. Solve for Speed:
S=D/T
2. Solve for Distance
D=S*T
3. Solve for Time
T=D/S
6 Step Method
1. State the known information (put in
chart).
2. State the unknown information (put in
chart).
3. Choose the correct formula.
4. Plug the numbers into the formula.
5. Calculate the answer.
6. Use appropriate units.
What is Velocity?
CONVERSIONS
• Converting a small unit to a big unit you
must divide.
– Ex. Centimeter  Meter
• Converting a big unit to a small unit you
must multiply
– Ex. Meter Centimeter
Conversions
How to convert units using a conversion
chart.
1. Convert 25 min into hours.
2. Convert 2 hours into seconds.
3. Convert 250 meters into centimeters.
4. Convert 5250milimeters into meters.
Example 1
You took a car trip with your family to visit
relatives who live 750 km away. The trip
took 8hrs. What was your average speed
in km/hr?
Example 2
If you travel 50km due east in 2 hrs what is
your velocity?
Example 3
If a cyclist rode her bike 8km to school in
20 min, calculate her speed in km/hr*.
*How do you convert min to hrs?
Example 4
A bug carries food at a speed of 2 cm/s. How
long will it take the bug to carry a bread crumb
from the picnic blanket to the bugs home, a
distance of 60m*? Express your answer in
seconds, minutes and hours.
*Remember to convert meters to centimeters.