A runner measured the time it took him to run 5 km. What can he calculate from the distance and time measurements?
Speed
Mary rides her bike at a constant speed of 10 km/h. How long will she take to travel a distance of 102 kilometers?
Time= distance / time
Time= 100 km /10km per hour
Time = 10 hours
This graph shows the change in position of an object over time. Which statement best explains the movement of the object?
It returned to the starting point.
Abigail rides her bike 15 km in 3 hours. What is her average speed in kilometers per hour?
Speed= Distance / Time
Speed= 15 km / 3 hours
Speed= 5km per hour
Scientists discover an asteroid that is moving through space. What information is needed to determine the average speed of the asteroid?
How far the asteroid has moved in a particular amount of time. Speed= distance / time
Jake’s dad drove 54 miles from Raleigh to Pittsboro What additional information does Jake need to find his dad’s driving speed?
Time
A ball moves across a flat surface at 7 feet per second. If a student is asked to calculate the total distance traveled by the ball, what other information does the student need to know?
The total time the ball rolled.
Distance= speed x time
Which graph represents an object decreasing speed?
D
A police car drives at a constant speed of 100 miles per hour. How far can it travel in 10 hours?
D= Speed x Time
D= 100 m/h x 10 h
D= 1000 miles
The graph below shows the movement of an Earthworm. Gavin and Maddy observed an earthworm crawling on the sidewalk for four minutes. When did the earthworm move the greatest distance?
From 0 to 1 min