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# Integers in the Real World

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This presentation shows many ways that Integers (positive and negative numbers) are used in the real world.

To obtain a PowerPoint format download of this presentation, go to the following page:

http://passyworldofmathematics.com/pwerpoints/

Published in: Education, Sports, Automotive
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### Integers in the Real World

1. 1. We can drive OVER the speed limit (+15km/hr)or UNDER the speed limit (-10km/hr).Both of these can cause traffic problems.
2. 2. • We can be OVERWEIGHT (+ 10kg), or we might have an eating disorder and be UNDERWEIGHT (-25kg).
3. 3. • Each golf hole has a “Par” or amount of shots it should take to get the ball in.• UNDER PAR is negative and Good • OVER PAR is positive, (meaning it took you more shots than “par” and is not so good). (Continued next Slide)
4. 4. Integers and Golf• Here are some innovative ideas to make it easier to achieve “Par” on the Golf Course.
5. 5. Each week agiven Song canmove UP thecharts gainingplaces (Positive),ORdrop DOWN inthe charts fallingplaces (Negative).
6. 6. There are indexes for the markets to indicate how shares have gone that day. (All Ordinaries, The Dow Jones, The Nikei).Index can go UP (positive), or DOWN (negative).
7. 7. Positive and Negative charges from atomsmake Batteries generate electricity for us.
8. 8. Positive and Negative charges from atoms arealso used for electroplating silver onto spoonsand jewellery.
10. 10. Thrust power (positive) pushes a rocket upwards against earth’s gravitational force (negative).
11. 11. Floors above ground level are positive, while the underground car park levels are negative. Burj Kalifa - World’s tallest building. Level 124 = observation lounge, total height 160 stories. Visited by Passy’s World in 2010 – Awesome 
12. 12. Pyramids -2500 BC Burj Kalifa +2010 AD
13. 13. The positive force of a drag racing car at full speed is far too big to be overcome by normal braking. It is like an integer sum of 1000 and -300.There is still 700 of forward force to cancel out before the car can reach zero and stop moving.
14. 14. To create enough Negative braking force for the drag racer to stop, parachutes are needed as well as huge powerful disc brakes. Negative Braking Force Positive Force
15. 15. When a plane takes of it is ASCENDING above ground level (Positive), and when it comes in to land it is DESCENDING (Negative).
16. 16. Brakes supply a Negative direction pull against the forward motion of the truck and its load.The trailer brakes need to re-adjust to balance each trailer load against the truck’s brakes. Forward Motion of Truck Trailer Brakes Truck Brakes
17. 17. If the truck brakes too hard compared to the trailer, then we get the classic jack-knife type truck accident occurring.
18. 18. For an initial \$20 invested on a Gaming Machine,you might be \$5 up (Positive), or more likelydown \$15 and losing (Negative).
19. 19. You can be racing at under world record time,(Negative), or be outside of the world recordtime (Positive).
20. 20. Mt Everest 8.8km above sea level (Positive) andthe Mariana Trench is 10.9km below (Negative).
21. 21. At the summit of Mt Everest, the Oxygenavailability is below (Negative) the requiredlevel for human survival.
22. 22. Getting Paid and Savings are Positive, Loans and Debts are Negative money amounts.
23. 23. • Increases are Positive, and Decreases Negative.
24. 24. Drug Tests can be Positive, meaning you do have the drug in your system, or Negative.
25. 25. Integers and Blood PressureYour Blood Pressure might be too high (Positive), but it can also be too low (Negative).
26. 26. Feeling Positive ?Hopefully learning a bit more about Integers inthe real world will make you feel even morePOSITIVE about Mathematics.