Motion

MotionVocabulary Development…• Speed• Velocity• Acceleration

MotionSpeed

Level 1 – How fast something is goingLevel 2/3 – The distance traveled in a given time

ex: 40 miles in 1 hour Units =130 centimeters in 1 second Units =

Try this…Car 1 drove 90km in 2 hours.Car 2 drove 100km in 2 hours.Which car has more speed? How do you

know?

MotionSpeed – Critical Thinking about UNITS

Compare the following speed measurements:

5 m/s 1 mi/s

40 mi/h 40 cm/h

100 km/day 10 km/min

MotionSpeed – Critical Thinking about UNITS

Compare the following speed measurements:

5 mi/s 0.5 m/s

40 m/day 40 m/h

1000 cm/s 1000 cm/min

Motion

DS T

Cover the one you’re looking for.

MotionApplication: Speed Calculations

A pitcher threw a baseball 150 m in 2 seconds. How fast was the ball going?

A girl can run 5 m/s. How long will it take her to run 1000 m?

You drove 80 km/h for 3 hours. How far did you go?

Mini quiz!Application: Speed Calculations1. A car drove 120 miles in 3 hours. How fast was it

going?2. A sprinter can run 60 m/s. How long will it take

her to run 600m?3. You drove 50 mi/h for 8 hours. How far did you

go?

MotionVelocity

Speed and directionex: 50km/h south

What 3 ways can velocity change?

MotionAcceleration

Level 1 - Speeding upLevel 2 - A change in motionLevel 3 - The rate at which velocity changes

MotionSpeed – the distance traveled in a given time

Velocity – speed and direction

Acceleration – the rate at which velocity changes

Motion_______ – speed and direction

______ – the distance traveled in a given time

__________ – the rate at which velocity changes

Motion__________ – the rate at which _______ changes

______ – the _______ traveled in a given _____

_______ – _____ and direction

MotionVelocity – _____ and ________

Acceleration – the ____ at which _______ ______

Speed – the _______ ________ in a _____ _____

MotionApplication: Vocabulary1. Acceleration is a change in…

Speed velocity direction2. You jog around the block at a constant speed of

5mi/h. What changes?Speed velocity

acceleration

MotionQUICK REVIEW

What information must you know in order to calculate speed?

What is the error in the following statement:The velocity of the car is 55km/hr.

MotionApplication: Speed CalculationsYou will drive to a town that is 100km away. Half the trip you will be able to drive 100km/h (on the highway) and half the trip you will drive 50km/h (going through small towns). How long will it take you to get there? Show your work!

MotionApplication: Speed CalculationsA geologist used satellite data to determine that the North American plate had moved 10cm southwest in the last 5 years.1. What is the velocity of the North American

plate?2. How far will it move in the next 10 years?3. How long will it take the plate to move 100cm?

MotionCalculate the resultant velocity

for each of the passengers.

Airplane: 800km/h west

4km/h west5km/h east

0km/h west

MotionApplication: Speed CalculationsA plane flies 100 km east for 10 minutes, then 200 km for 10 minutes, and then 50 km for 5 minutes. What is the plane's average velocity?Did the plane accelerate?

MotionDistance-Time Graphs

Calculate the average speed at each point:A. _________B. _________C. _________D. _________

Did the car accelerate or stay at a constant speed? How do you know?

A

D

CB

MotionDistance-Time GraphsThe following graph shows the distance Kyle traveled on his bicycle trip and the amount of time it took him to travel that distance.

1. During which 5-minute interval did Kyle achieve the greatest average speed?

2. What may have happened between t = 10 and t = 15 minutes?

MotionEverybody Writes!In your own words, describe the motion shown by each graph. (Hint: Be sure to look at the labels on the x and y axis.)

Graph 1

MotionEverybody Writes!In your own words, describe the motion shown by each graph. (Hint: Be sure to look at the labels on the x and y axis.)

Graph 2

MotionEverybody Writes!In your own words, describe the motion shown by each graph. (Hint: Be sure to look at the labels on the x and y axis.)

Graph 3

MotionEverybody Writes!In your own words, describe the motion shown by each graph. (Hint: Be sure to look at the labels on the x and y axis.)

Graph 4

MotionApplication: Speed CalculationsHow fast would you have to drive to go from Atlanta to New York (900 miles) in 10 hours?

A red car drove 150km at a speed of 50km/h. A blue car drove 300km at a speed of 75km/h. Which car reached its destination first?

MotionDistance-Time Graphs

7006005004003002001000 1 2 3 4 5 6 7

Dist

ance

(km

)

Time (h)

Graph showing the speed of a car

---- Car 1

---- Car 21. Which car drove at a

constant speed?

2. Which car accelerated?

3. Which car is faster? How do you know?

4. Which car drove farther after 1 hour? After 6 hours?

Motion Quiz1. What two things must you know to calculate speed?2. What is wrong with the following statement:

The velocity of a car is 100km/h3. Turning left, slowing down, and speeding up are all examples of

__________. 4. How fast would you have to drive to go from Atlanta to New

York (900 miles) in 9 hours?5. A red car drove 400km at a speed of 50km/h. A blue car drove

600km at a speed of 75km/h. Which car reached its destination first? YOU MUST SHOW YOUR WORK FOR CREDIT!

Motion Quiz700

600

500

400

300

200

100

0 1 2 3 4 5 6 7

Dist

ance

(km

)

Time (h)

Graph showing the speed of cars---- Blue Car

---- Red Car

6. Which car drove the farthest after 1 hour?7. How far did each car drive in 7 hours?• Red Car _____• Blue Car: ____

8. Which car

accelerated?9. Which car stayed at a

constant speed?10. What best explains the

motion of the red car between t=1 and t=4?

MotionGraphing Practice:

MotionGraphing Practice: