Speed:the distance an object travels per unit of time
Speed:the distance an object travels per unit of time
Speed = distance / time
Average speed = total distance / total time
Solve: A whitetail deer runs 33 meters in 3 seconds.What is its speed?
How do you know this boat is in
motion?
How do you know this boat is in
motion?
What can be used as a reference point?
What can be used as a reference point?
VelocityVelocity This occurs when you know both
the speed and direction of an object’s motion.
In other words: Speed in a given direction.
Example 25 km/h East
This occurs when you know both the speed and direction of an object’s motion.
In other words: Speed in a given direction.
Example 25 km/h East
Velocity and AccelerationVelocity and AccelerationVelocity and AccelerationVelocity and Acceleration
How does the running back show both
speed and acceleration?
How does the running back show both
speed and acceleration?
AccelerationAcceleration The change in velocity/speed per unit of
time Three conditions: Increase in speed
Decrease in speed Change in direction
The change in velocity/speed per unit of time
Three conditions: Increase in speed
Decrease in speed Change in direction
Formula: Final speed – Initial speed / Time
AccelerationAcceleration
Units of MeasurementUnits of Measurement
Time - s or hr Distance -cm, m, km Speed - m/s, km/hr Velocity - m/s North, Acceleration - m/s2, km/hr2
Time - s or hr Distance -cm, m, km Speed - m/s, km/hr Velocity - m/s North, Acceleration - m/s2, km/hr2
SolveSolve A family takes a trip. They travel for an hour at 50 km/hr and then for
two hours at 25 km/h. What is their average speed?
Mike’s skateboard accelerates from 6 m/s to 48 m/s in 6 seconds. What is his rate of acceleration?
A football player threw a football 60 m through the air. While in flight, the ball traveled an average speed of 25 m/s. How long did the ball stay in the air?
How far can a turtle travel if its speed is 20 m/hr and its time is 1.5 hr?
A family takes a trip. They travel for an hour at 50 km/hr and then for two hours at 25 km/h. What is their average speed?
Mike’s skateboard accelerates from 6 m/s to 48 m/s in 6 seconds. What is his rate of acceleration?
A football player threw a football 60 m through the air. While in flight, the ball traveled an average speed of 25 m/s. How long did the ball stay in the air?
How far can a turtle travel if its speed is 20 m/hr and its time is 1.5 hr?
This graph shows the motion of a helicopter. Use this graph to answer the questions for “Slide 9”
This graph shows the motion of a helicopter. Use this graph to answer the questions for “Slide 9”
Use this graph to answer the questions on “Slide 10”
Use this graph to answer the questions on “Slide 10”
