Date post: | 08-May-2015 |
Category: |
Engineering |
Upload: | nebraska-transportation-center |
View: | 176 times |
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Faster Than a Speeding
Bullet…
Roads, Rails and Race Cars
Reaction Time and Distracted Driving
What happens to a speeding bullet?
http://www.youtube.com/watch?v=9K3laXJqy8w
What are your observations…?
What caused this accident? What may have caused this multi car wreck?
Talk to your partner about 3 possible things that may have contributed to the accident.
Have you been in an accident?
Have you seen an accident?
Did you know…
What happens in the first fatal second after a car going 55 mph hits a solid object?
The front bumper collapses
The grille collapses
First 1/10th of a Second
2/10th of a Second
The hood crumbles and strikes the windshield
Spinning rear wheels lift from the ground
Fenders wrap around each other causing the frame to stop
The driver legs stiffen and snap at the knees
3/10th of a Second The steering wheel starts to disintegrate
The steering column aims for the driver’s chest
4/10th of a Second
Two feet of the car’s front end is wrecked
Rear end of the car is still moving at 35 mph
Driver’s body is moving 55 mph
Driver and passenger can experience serious injury
5/10th of a Second
6/10th of a Second
Driver and passengers can continue to sustain serious injury
Brake pedal breaks off
Car frame buckles in the middle
Spinning rear wheels fall back to the ground
7/10th of a Second Hinges rip loose all over the car
Doors open
Last 3/10th of the Second Drivers and/or passengers may have died from their Injuries
What can prevent an accident? 1.
2.
3.
4.
5.
Objectives of Today’s Lesson:Understand reaction time
Measure reaction time
Record appropriate data
Analyze data
Compare your reaction time to other situations
FOOD FOR THOUGHT…
How is reaction time related to distracted driving?
Image courtesy of iStockphoto
Reaction time
Reaction time is a time interval
Gun firing = stimulus
Runner movement = response
Time interval = how long does it take a runner to start after the gun
Where is reaction time important? Sports: Softball, Baseball, Football, Gymnastics
Games: Cards, Board games, Activities
Video Games
Physical Activity Tests
Driving
Let’s Test Your Reaction Time
Get into a Team of 2
Test 3 times for each hand
Record your results on lab paper
Determine averages
What about Computer Skills?
With your partner test out the computer activity
Record your times in the data table
Is your time the same or different?
If different, why is your time not the same as the ruler test?
Try the second Computer Test
Is it the same or different from the other computer test?
Simulation Test 1 Let’s try a driving situation
Try to brake your vehicle and DON’T hit the pedestrian
You LOSE if you see the shatter screen
You WIN if you brake before the shatter screen appears
Watch each video 3 times
Record your results
Simulation Watch the simulation
Simulation Test 2 Try the Simulation again 3 times
Have a phone in your hand
Watch the phone, dial or text during the simulation
Record your results…can you stop in time?
Summary What did you learn about distraction?
What did you learn about distracted driving?
What did you learn about your “speeding bullet?”
What is the message?
Texting and Driving….It Can Wait