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Speed temperature and rate

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Phil Acu単a
Phil Acu単a

This Presentation is for Grade 7 students. I hope this presentation will help them to understand the lesson.

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Volume This conversion factor may also be interpreted in other ways. Check out the conversion factors below: 1 L = 1 dm3 1 mL = 1 cc 1,000 L = 1 m3
Example The rectangular water tank of a fire truck measures 3 m by 4 m by 5 m. How many liters of water can the fire truck hold?
Given: L= 3m W= 4m H= 5m Unknown: V=? Formula: V= LWH Solution: V= (3m)(4m)(5m) Answer: V = 60m3
Convert in liters 60m3______________L 1000L = 1m3 60m3______________L 1m3 = 60, 000 L (1000)
Lecture no.__
Time and Speed Speed is the rate of an objects change in position along a line. Average speed is determined by dividing the distance travelled by the time spent to cover the distance
(Speed = distance/time or S = d/t, read as distance per time). The base SI unit for speed is meters per second (m/s). The commonly used unit for speed is Kilometers/hour (kph or km/h) for the Metric system and miles/hour (mph or mi/hr) for the English system.
S = for finding Speed d = st for finding distance t = for finding time Formula
d s t x 歎
Sample Problem 1 A car left the house and travelled at an average speed of 60 kph. How many minutes will it take for the car to reach the school which is 8 km away from the house?
Given: S = 60 km/hr d = 8km Unknown: t = ? Formula: t = Solution: t = 8 60 / Answer: t = 2 15
How many minutes will it take for the car to reach the school which is 8 km away from the house? t = 2 15 _________ 1hr (60) t = 8 minutes
Sample Problem 2 Sebastian stood at the edge of the cliff and shouted facing down. He heard the echo of his voice 4 seconds after he shouted. Given that the speed of sound in air is 340 m / s, how deep is the cliff?
Given: S = 340 m/s t = 4s Unknown: d = ? Formula: d = st Solution: d = (340m/s)(4s) Answer: d = 1360 m
Temperature is the measurement of the degree of hotness or coldness of an object or substance commonly used units are Celsius ( C) for the Metric system and Fahrenheit ( F) for the English system, the base SI unit for temperature is the Kelvin (K).
Unlike the Celsius and Fahrenheit which are considered degrees, the Kelvin is considered as an absolute unit of measure and therefore can be worked on algebraically.
At what temperature are celsius and degree Fahrenheit the same? - 40 - 40
Hereunder are some conversion factors: = (5/9)( 32) = (9/5)() + 32 K = + 273.15 For example: Convert 100 to = (9/5)(100) + 32 = 180 + 32 = 212
Example no. 2 Maria was preparing the oven to bake brownies. The recipes direction was to pre- heat the oven to 350 F but her oven thermometer was in 甬C. What should be the thermometer reading before Maria puts the baking pan full of the brownie mix in the oven?
Given: 350 F Unknown: 甬C Formula: = (5/9)( 32) Solution: = (5/9)(350 32) (5/9)(318) = 1590/9 Answer: 176.67
Reading Your Electric Meter To determine the electric consumption for a given period, subtract the initial reading from the final reading.
Example The pictures below show the electric meter reading of Larrys canteen If the electric charge is P9.50 / kWh, how much will Larry pay the electric company for the given period?
Given: Present Reading = 10860 KwH Previous Reading = 10836 KwH Unknown: Electric Bill Formula: ｐ ＄＄ Solution:(10860KwH 10836Kwh) x Php 9.5 (24)x(Php 9.5) Answer: Php 228.00
Quiz no. 5 Choose the letter of the correct answer. Write your answer in capital letter.
1. The rectangular water tank of a fire truck measures 3 m by 4 m by 5 m. How many liters of water can the fire truck hold? What are the given? A. L = 5 m W = 3m H = 4m B. L = 3 m W = 4m H = 5m C. L = 4 m W = 5m H = 3m D. L = 5 m W = 4m H = 3m
2. The rectangular water tank of a fire truck measures 3 m by 4 m by 5 m. How many liters of water can the fire truck hold? What is unknown? A. Length B. Width C. Height D. Volume
3. The rectangular water tank of a fire truck measures 3 m by 4 m by 5 m. How many liters of water can the fire truck hold? What is the formula to be used? A. V = L x W x H B. V = L - W + H C. V = 1/2bh D. V = 1/2bhH
4. The rectangular water tank of a fire truck measures 3 m by 4 m by 5 m. How many liters of water can the fire truck hold? What is the answer? A. V = 60 L B. V = 600 L C. V = 6000 L D. V = 60, 000 L
A. Distance B. Time C. Speed D. Volume 5. It is the rate of an objects change in position along a line.
6. Sebastian stood at the edge of the cliff and shouted facing down. He heard the echo of his voice 4 seconds after he shouted. Given that the speed of sound in air is 340 m / s, how deep is the cliff? What are the given? A. S = 4s; t= 340m/s B. S = 340m/s; t= 4 s C. D = 4s; t= 340m/s D. t = 340m/s; D= 4 s
7. Sebastian stood at the edge of the cliff and shouted facing down. He heard the echo of his voice 4 seconds after he shouted. Given that the speed of sound in air is 340 m / s, how deep is the cliff? What is unknown? A. s B. t C. d D. v
8. Sebastian stood at the edge of the cliff and shouted facing down. He heard the echo of his voice 4 seconds after he shouted. Given that the speed of sound in air is 340 m / s, how deep is the cliff? What is the formula? A. s = d/t B. t = d/s C. d = s x t D. v = lwh
9. Sebastian stood at the edge of the cliff and shouted facing down. He heard the echo of his voice 4 seconds after he shouted. Given that the speed of sound in air is 340 m / s, how deep is the cliff? What is the answer? A. 1160 m B. 1260 m C. 1360 m D. 1460 m
10. The present reading of electric meter of mang Juan is 10860 and the previous was 10836. If the electric charge is P9.50 / kWh, how much will mang Juan pay the electric company for the given period? A. Php 228.00 B. Php 328.00 C. Php 428.00 D. Php 528.00
Speed temperature and rate
Answer key 1.B 2.D 3.A 4.D 5.C 6. B 7. C 8. C 9. C 10.A
Speed temperature and rate
Speed temperature and rate
Speed temperature and rate
Speed temperature and rate
Speed temperature and rate
Speed temperature and rate

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Speed temperature and rate

  • 1. Volume This conversion factor may also be interpreted in other ways. Check out the conversion factors below: 1 L = 1 dm3 1 mL = 1 cc 1,000 L = 1 m3
  • 2. Example The rectangular water tank of a fire truck measures 3 m by 4 m by 5 m. How many liters of water can the fire truck hold?
  • 3. Given: L= 3m W= 4m H= 5m Unknown: V=? Formula: V= LWH Solution: V= (3m)(4m)(5m) Answer: V = 60m3
  • 4. Convert in liters 60m3______________L 1000L = 1m3 60m3______________L 1m3 = 60, 000 L (1000)
  • 6. Time and Speed Speed is the rate of an objects change in position along a line. Average speed is determined by dividing the distance travelled by the time spent to cover the distance
  • 7. (Speed = distance/time or S = d/t, read as distance per time). The base SI unit for speed is meters per second (m/s). The commonly used unit for speed is Kilometers/hour (kph or km/h) for the Metric system and miles/hour (mph or mi/hr) for the English system.
  • 8. S = for finding Speed d = st for finding distance t = for finding time Formula
  • 10. Sample Problem 1 A car left the house and travelled at an average speed of 60 kph. How many minutes will it take for the car to reach the school which is 8 km away from the house?
  • 11. Given: S = 60 km/hr d = 8km Unknown: t = ? Formula: t = Solution: t = 8 60 / Answer: t = 2 15
  • 12. How many minutes will it take for the car to reach the school which is 8 km away from the house? t = 2 15 _________ 1hr (60) t = 8 minutes
  • 13. Sample Problem 2 Sebastian stood at the edge of the cliff and shouted facing down. He heard the echo of his voice 4 seconds after he shouted. Given that the speed of sound in air is 340 m / s, how deep is the cliff?
  • 14. Given: S = 340 m/s t = 4s Unknown: d = ? Formula: d = st Solution: d = (340m/s)(4s) Answer: d = 1360 m
  • 15. Temperature is the measurement of the degree of hotness or coldness of an object or substance commonly used units are Celsius ( C) for the Metric system and Fahrenheit ( F) for the English system, the base SI unit for temperature is the Kelvin (K).
  • 16. Unlike the Celsius and Fahrenheit which are considered degrees, the Kelvin is considered as an absolute unit of measure and therefore can be worked on algebraically.
  • 17. At what temperature are celsius and degree Fahrenheit the same? - 40 - 40
  • 18. Hereunder are some conversion factors: = (5/9)( 32) = (9/5)() + 32 K = + 273.15 For example: Convert 100 to = (9/5)(100) + 32 = 180 + 32 = 212
  • 19. Example no. 2 Maria was preparing the oven to bake brownies. The recipes direction was to pre- heat the oven to 350 F but her oven thermometer was in 甬C. What should be the thermometer reading before Maria puts the baking pan full of the brownie mix in the oven?
  • 20. Given: 350 F Unknown: 甬C Formula: = (5/9)( 32) Solution: = (5/9)(350 32) (5/9)(318) = 1590/9 Answer: 176.67
  • 21. Reading Your Electric Meter To determine the electric consumption for a given period, subtract the initial reading from the final reading.
  • 22. Example The pictures below show the electric meter reading of Larrys canteen If the electric charge is P9.50 / kWh, how much will Larry pay the electric company for the given period?
  • 23. Given: Present Reading = 10860 KwH Previous Reading = 10836 KwH Unknown: Electric Bill Formula: ｐ ＄＄ Solution:(10860KwH 10836Kwh) x Php 9.5 (24)x(Php 9.5) Answer: Php 228.00
  • 24. Quiz no. 5 Choose the letter of the correct answer. Write your answer in capital letter.
  • 25. 1. The rectangular water tank of a fire truck measures 3 m by 4 m by 5 m. How many liters of water can the fire truck hold? What are the given? A. L = 5 m W = 3m H = 4m B. L = 3 m W = 4m H = 5m C. L = 4 m W = 5m H = 3m D. L = 5 m W = 4m H = 3m
  • 26. 2. The rectangular water tank of a fire truck measures 3 m by 4 m by 5 m. How many liters of water can the fire truck hold? What is unknown? A. Length B. Width C. Height D. Volume
  • 27. 3. The rectangular water tank of a fire truck measures 3 m by 4 m by 5 m. How many liters of water can the fire truck hold? What is the formula to be used? A. V = L x W x H B. V = L - W + H C. V = 1/2bh D. V = 1/2bhH
  • 28. 4. The rectangular water tank of a fire truck measures 3 m by 4 m by 5 m. How many liters of water can the fire truck hold? What is the answer? A. V = 60 L B. V = 600 L C. V = 6000 L D. V = 60, 000 L
  • 29. A. Distance B. Time C. Speed D. Volume 5. It is the rate of an objects change in position along a line.
  • 30. 6. Sebastian stood at the edge of the cliff and shouted facing down. He heard the echo of his voice 4 seconds after he shouted. Given that the speed of sound in air is 340 m / s, how deep is the cliff? What are the given? A. S = 4s; t= 340m/s B. S = 340m/s; t= 4 s C. D = 4s; t= 340m/s D. t = 340m/s; D= 4 s
  • 31. 7. Sebastian stood at the edge of the cliff and shouted facing down. He heard the echo of his voice 4 seconds after he shouted. Given that the speed of sound in air is 340 m / s, how deep is the cliff? What is unknown? A. s B. t C. d D. v
  • 32. 8. Sebastian stood at the edge of the cliff and shouted facing down. He heard the echo of his voice 4 seconds after he shouted. Given that the speed of sound in air is 340 m / s, how deep is the cliff? What is the formula? A. s = d/t B. t = d/s C. d = s x t D. v = lwh
  • 33. 9. Sebastian stood at the edge of the cliff and shouted facing down. He heard the echo of his voice 4 seconds after he shouted. Given that the speed of sound in air is 340 m / s, how deep is the cliff? What is the answer? A. 1160 m B. 1260 m C. 1360 m D. 1460 m
  • 34. 10. The present reading of electric meter of mang Juan is 10860 and the previous was 10836. If the electric charge is P9.50 / kWh, how much will mang Juan pay the electric company for the given period? A. Php 228.00 B. Php 328.00 C. Php 428.00 D. Php 528.00