Warm up 4-23-151. Define motion in your own words

2. Which of the following animal is slowest on land?

3. How fast can you travel on the freeway?Agenda-Physics Notes speed-Car lab (speed)

Homework

0.05 mph 0.03mph 0.17mph

Physics Day 2 Speed

• At the equator Earth spins at 1,038 miles per hour

760mph in 1997

670,616 mph

• Usain Bolt ran 100 meter in 9.58 sec

Distance• A measurement of the actual path taken

Displacement• How far an object has moved in relation to

its starting point (Draw the picture below)

Speed• The two factors that determine speed are

distance and time

Speed• The distance traveled over a certain amount

of time

Miles per Hour

Speed = distance

time

Graphing Motion

• Graph distance on the y-axis and time on the x-axis

Slope = Slope = riserise = = distancedistance = speed = speed

run timerun time

Speed Practice Problem• If a bicycle rider travels 60 miles over a

period of 4.5 hours, then the rider’s average speed is?

Speed Practice Problem

• A train’s speed is 60 mph, how far will it travel in 2.5 hour?

Speed Practice Problem

• A car’s speed is 70 mph, how long will it take for this car to drive from LA to San Jose, about 340 miles apart?

Toy Car Speed• Show me your hypothesis first before getting

materials

• Measure out 3 meters on the ground and use masking tape to mark 0,1,2,3

• Record the time your car travel from 0 to 1 meter (repeat 3 times)

• Repeat the procedure with 0-2 meter and 0-3 meter

• Make sure you do the test twice - with the tires and without the tires

Comic Strip Assignment

• Create a short story using comic strip to illustrate motion or speed

• Must have at least 6 (color) pictures

• Notes Summary

“Motion” Cartoon Flip Book• Without using words, draw and color your

own scene that gives an example of “motion” or speed

• At least 25 pictures

• Cut your white paper into 4, then half each rectangle

Warm up 5-2-141. What is speed?

2. If you walk to school in 15 minutes and live 1.3 miles away, what is your speed?

3. A train’s speed is 60 mph, how far will it travel in 2.5 hour?

Agenda-Turn in HW-Turn in Extra Credit-Car lab (speed)

Homework-May 14 – Deadline to turn in make up work before 4PM