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1
COMPUTER/LAB PROJECTCOMPUTER/LAB PROJECT
One two three fourOne two three four
2
3
WHAT IS THE SPEED OF
SOUND
• The speed of sound is 1130 ft/second at 20
degrees C.
• The speed of sound is 758 m/hr at 2...
4
How does speed travel in
different states of matter?
• Sound travels fastest in a solid.
• Sound travels slower in a liq...
5
Formulas
• Speed = distance/time
• Mach speed = Speed miles per hour/758
miles per hour.
• Conversion = ft/sec x 60sec/1...
6
Fastest Human
• His name is Usain Bolt
• He is one of the fastest.
• He can run 100 meters in
9.6 seconds.
• Mr. Albrand...
7
Fastest Car
• The fastest car was the
British made Thrust
SSC.
• It could travel 760.1
miles per hour.
• And yes it did ...
8
MORE ON FAST CAR
• They had to run in the
desert salt flats to have
enough room.
• It took 250000 gallons of
fuel to com...
9
SPEED FACTS
• SPEED NEVER HAD A BAD DAY
• SPEED KILLS
• YA GOT SPEED – EVERYTHING ELSE
WILL FOLLOW
• YA CAN’T TEACH SPEE...
10
Fastest Plane
• The fastest plane is the X-
43.
• It can move at 7000 miles
per hour.
• Converting that to Mach
speed y...
11
FASTEST PLANE VIDEO LINK
• http://www-pao.ksc.nasa.gov/kscpao/videos/meta
12
Why is xr-71 so hot in a high
cold place?
• As you go up in elevation temperature
drops because of sparse particle plac...
13
My reaction time to hit a 95 mph
fastball.
• Web site for activity
http://www.exploratorium.edu/baseball/reactionti
• M...
14
What is a shock wave?
• As a plane travels faster
than the speed of sound it
pushes the air in front of
it.
• The waves...
15
Factors that affect the speed of
sound in air.
• Temperature of the air.
• Density of the air.
• Altitude that you are ...
16
Some key term definitions.
• Speed is distance traveled per time.
• Mach is the speed of sound which is 758
miles per h...
17
Websites to consider.
• http://www.pbs.org/wgbh/nova/barrier/men.html
• http://www.exploratorium.edu/baseball/reactiont...
18
Lab procedure
• Measure baseball pitching distance of 60.5 feet
from pitching mark to wall.
• Have someone time the bal...
19
Extra Credit
• Randy Johnson threw
a baseball that killed a
bird in a professional
baseball game.
• He can throw a
base...
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Speed of Sound

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Speed of Sound

  1. 1. 1 COMPUTER/LAB PROJECTCOMPUTER/LAB PROJECT One two three fourOne two three four
  2. 2. 2
  3. 3. 3 WHAT IS THE SPEED OF SOUND • The speed of sound is 1130 ft/second at 20 degrees C. • The speed of sound is 758 m/hr at 20 degrees C. • It varies with elevation due to air pressure, air density, and temperature.
  4. 4. 4 How does speed travel in different states of matter? • Sound travels fastest in a solid. • Sound travels slower in a liquid. • Sound travels the slowest in air. • The closer the particles in a substance the faster sound travels. • Think of a clank underwater in a swimming pool.
  5. 5. 5 Formulas • Speed = distance/time • Mach speed = Speed miles per hour/758 miles per hour. • Conversion = ft/sec x 60sec/1min x 60min/1hour x 1mile/5280ft • Convert the fastest Equla 22 at around 1700 ft/sec to mph – does it make a sonic boom?
  6. 6. 6 Fastest Human • His name is Usain Bolt • He is one of the fastest. • He can run 100 meters in 9.6 seconds. • Mr. Albrandt would be a close second. • Tyson Gay can jet also. U sain Bolt
  7. 7. 7 Fastest Car • The fastest car was the British made Thrust SSC. • It could travel 760.1 miles per hour. • And yes it did break the speed of sound!
  8. 8. 8 MORE ON FAST CAR • They had to run in the desert salt flats to have enough room. • It took 250000 gallons of fuel to complete project – much of it was raised with internet donations. • The cockpit was like a jet plane with many computers.
  9. 9. 9 SPEED FACTS • SPEED NEVER HAD A BAD DAY • SPEED KILLS • YA GOT SPEED – EVERYTHING ELSE WILL FOLLOW • YA CAN’T TEACH SPEED • HAVE SPEED – WILL TRAVEL WITH EXTREME QUICKNESS
  10. 10. 10 Fastest Plane • The fastest plane is the X- 43. • It can move at 7000 miles per hour. • Converting that to Mach speed you are traveling at Mach 9.6. • Now that is what I call speed. • It is rumored that Skunk Works may have a plane that can do Mach 10
  11. 11. 11 FASTEST PLANE VIDEO LINK • http://www-pao.ksc.nasa.gov/kscpao/videos/meta
  12. 12. 12 Why is xr-71 so hot in a high cold place? • As you go up in elevation temperature drops because of sparse particle placement. • The temperature gets to be –70 degrees C at 80000 feet elevation. • Even though it is so cold the friction caused by the planes excessive speed makes the plane hot.
  13. 13. 13 My reaction time to hit a 95 mph fastball. • Web site for activity http://www.exploratorium.edu/baseball/reactionti • My reaction time was .25 seconds. • How fast are you?
  14. 14. 14 What is a shock wave? • As a plane travels faster than the speed of sound it pushes the air in front of it. • The waves cannot travel faster than the speed of sound so they pile up. • These piled up waves are called shock waves.
  15. 15. 15 Factors that affect the speed of sound in air. • Temperature of the air. • Density of the air. • Altitude that you are at.
  16. 16. 16 Some key term definitions. • Speed is distance traveled per time. • Mach is the speed of sound which is 758 miles per hour at 20 degrees C. • Kinetic is a term related to motion. • Sonic boom is created by shock waves moving out from plane towards ground and going through a sudden pressure change that hits your eardrum.
  17. 17. 17 Websites to consider. • http://www.pbs.org/wgbh/nova/barrier/men.html • http://www.exploratorium.edu/baseball/reactionti • http://www.grc.nasa.gov/WWW/K-12/a
  18. 18. 18 Lab procedure • Measure baseball pitching distance of 60.5 feet from pitching mark to wall. • Have someone time the ball from release to when it hits the wall. • Record the total distance and total time in feet and seconds. • To get speed divide distance by time. • To get speed in miles per hour use dimensional analysis formula above. • To get Mach number divide this value by 758 miles per hour.
  19. 19. 19 Extra Credit • Randy Johnson threw a baseball that killed a bird in a professional baseball game. • He can throw a baseball just over 100 mph. • http://www.youtube.co m/watch? v=viI2YQoucBE&wat ch_response

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