•Based on data collected, graph and calculate average speed using distance and time.

WARM-UPWARM-UP

Student Objective

Tell me about the motion of the object for each part of the graph.

*See next slide

Speed Graph

Time

ASteady, fast, away

BSpeeding up, away

CStead, medium, away

D Stopped

E Steady, medium, closer

- Describing and Measuring MotionCalculating Speed• If you know the distance an object travels in a

certain amount of time, you can calculate the speed of the object. Speed = distance ÷ time

Calculate the speed of each animal after one minute (60 sec.) has elapsed.

Rabbit Speed = D/T

Speed = 1000m / 60sec Speed is _______

Tortoise Speed = D/T

Speed = ______m / 60sec Speed is _______

Cheetah Speed = D/T

Speed = ______m / ____sec Speed is _______

4

2000 60

16.67 m/s

0.07 m/s

33.33 m/s

Calculate each snowmobile’s speed and predict the winner.

Then race them to see if you were right!

http://sunshine.chpc.utah.edu/Labs/ForceAndMotion/act1/lab.htm

How Fast Can You Get Your Shuttle to How Fast Can You Get Your Shuttle to the Spaceship?the Spaceship?

• You will now complete a online graphing activity to see how fast you can race through space to the mother ship!! Can you make it in time? Spend 5 minutes trying to make the trip to the mother ship as fast as you can

• Read the directions carefully and away you go!

• Answer the questions on your worksheet.

Distance Time Graph Activity

6

Answer the following question on your notebook paper.(Distance in miles, time in hours)

1. How many miles away was the shuttle from the spaceship at the beginning of the trip?

2. How far away was your shuttle from the spaceship 10 hours into the trip?

3. How far away was your shuttle from the spaceship 20 hours into the trip?

4. How far away was your shuttle from the spaceship 25 hours into the trip?

5. Where in your trip were you traveling the fastest?

How do you know??

6. Where in the trip were you traveling the slowest?

How do you know??

How Fast Can You Get Your Shuttle to the Spaceship?How Fast Can You Get Your Shuttle to the Spaceship?

ExtensionExtension

• How did the various objects in space affect the speed of your shuttle?

• Do you think you were traveling at a constant speed in your shuttle? Why or why not?

Be prepared to share your responses with the class.

8

Conclusion: Which animal is the has the

fastest speed?

AnimalA. 10 miles in 2 hours

B. 50 miles in 25 hoursC. 15 miles in 5 hours