Explain the process for calculating average speed.
Add all the distances together. Add all the times together. Divide total distance traveled by the total time.
A tennis ball falls from a building at a rate of 27 centimeters every 3 minutes. What is the tennis ball's speed?
9 centimeters per minute
What is the definition of speed?
The distance an object moves per unit of time
A horse walked 6 miles in 2 hours, then ran 42 miles in 4 hours. What was the horse's average speed?
8 miles per hour
What is the formula for calculating speed?
Speed=Distance/Time
Calculate the average speed from this distance vs time graph.
0.75 mile per minute
Calculate the average speed from this distance vs time graph.
40 kilometers per hour
A car is traveling at 45 meters every 9 minutes. What is the car's speed?
5 meters per minute
What is the unit for the strength of a force called?
Newton
What is instantaneous speed?
The speed at a particular instant in time
A family left their house and traveled 4 kilometers in 1 hour. Then drove to the store 10 kilometers in half an hour. Finally they got on the highway and drove 19 kilometers in an hour an a half. What is the average speed?
11 kilometers per hour
Name two examples for units of speed.
meters per second, kilometers per hour, miles per hour, feet per minute
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