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Indirect Measurement

Indirect Measurement. CFU: 0706.4.1 0706.1.7 0706.1.8 GLE 0706.2.3 SPI: 0706.2.7. Indirect Measurement is a way to find the measurement of things around you. For instance, have you ever wondered if the Statue of Liberty has a nose that is too big?. Typically, your nose is 1/8

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Indirect Measurement

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  1. Indirect Measurement

  2. CFU: 0706.4.10706.1.70706.1.8GLE 0706.2.3SPI: 0706.2.7

  3. Indirect Measurement is a way to find the measurement of things around you. For instance, have you ever wondered if the Statue of Liberty has a nose that is too big?

  4. Typically, your nose is 1/8 the distance of your arm. Try to use that ratio to find the answer about Lady Liberty’s nose. You will need a ruler or tape measure for this.

  5. First measure your arm and your nose…. Write your answers as a ratio: Length of your nose Length of your arm Take a look at the next slide.

  6. Come closer and look at the length of Lady Liberty’s arm. xxxxxxxxxxxxxxxxx

  7. Now take the ratio from your measurements and write the proportion xxxxxxxxxxxxxxxxx

  8. Length of Lady Liberty’s nose Length of your nose = x Length of your arm

  9. Length of Lady Liberty’s nose Length of your nose = x Length of your arm Try measuring your arm raised as if you are holding a torch.

  10. Length of Lady Liberty’s nose 1 = 8 x Now let’s use the ratio that your nose is usually 1/8 of your arm……

  11. x xxxxxxxxxxxxxxxxx Click once to see the actual size revealed.

  12. Now let’s try to find the height of the Eiffel Tower. What I know is that on a sunny day, its shadow is 328 feet long.

  13. I know that it takes a fourteen quarters stacked on top of each other to make an inch. What is your value in quarters? Would you be worth more if they were stacked or laid end to end?

  14. If you have ever seen Jurassic Park, you saw how big the dinosaurs were compared to the people. Pretend that they made a large Human to watch over the animals. What would be the scale factor if a 64 inch person was made to be 160 feet?

  15. The scale factor tells you how many times bigger than “normal” that person really is. You must make all units of measure the same…. 64 inches 64 inches 64 inches = = 160 feet 1920 inches 160 x 12

  16. Now take the: 64 inches And simplify 1920 inches 1/30 inches This means that the person was created 30 times his normal size.

  17. A real car is 6 inches long, while the real car is 9 feet long. What is the scale of the model? Remember to put Model on top of the actual measurement, make them the same unit and reduce ! 1 18 6 inches 108 inches 6 inches 9 feet

  18. A model car has a scale factor of 1/64… The diameter of a tire on the model of a car is 0.4 inches. What is the diameter of a tire on the actual car? The scale means that the car is really 64 times larger. So, .4 x 64 = 25.6 Hint

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