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Daily Quiz:

Daily Quiz:. Daily Quiz:. Which of the following is a base unit? volume length density velocity. Daily Quiz:. 2. If there were such a thing as a megadollar, it would be worth $1,000 $100,000 $1,000,000 $100,000,000. Daily Quiz:. Density is equal to mass x volume mass ÷ volume

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Daily Quiz:

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  1. Daily Quiz:

  2. Daily Quiz: • Which of the following is a base unit? • volume • length • density • velocity

  3. Daily Quiz: 2. If there were such a thing as a megadollar, it would be worth • $1,000 • $100,000 • $1,000,000 • $100,000,000

  4. Daily Quiz: • Density is equal to • mass x volume • mass ÷ volume • volume ÷ mass • length x width x height

  5. Daily Quiz: 4. Adamantium has a density of 6g/cm3. which of the following samples is made of adamantium? • mass = 36 g, vol = 12 cm3 • mass = 9 g, vol = 1.5cm3 • mass = 3 g, vol = 2 cm3

  6. Daily Quiz: • Which of the following is a base unit? • volume • length • density • velocity

  7. Daily Quiz: • Which of the following is a base unit? • volume • length • density • velocity

  8. Daily Quiz: 2. If there were such a thing as a megadollar, it would be worth • $1,000 • $100,000 • $1,000,000 • $100,000,000

  9. Daily Quiz: 2. If there were such a thing as a megadollar, it would be worth • $1,000 • $100,000 • $1,000,000 • $100,000,000

  10. Daily Quiz: • Density is equal to • mass x volume • mass ÷ volume • volume ÷ mass • length x width x height

  11. Daily Quiz: • Density is equal to • mass x volume • mass ÷ volume • volume ÷ mass • length x width x height

  12. Daily Quiz: 4. Adamantium has a density of 6g/cm3. which of the following samples is made of adamantium? • mass = 36 g, vol = 12 cm3 • mass = 9 g, vol = 1.5cm3 • mass = 3 g, vol = 2 cm3

  13. Daily Quiz: 4. Adamantium has a density of 6g/cm3. which of the following samples is made of adamantium? • mass = 36 g, vol = 12 cm3 • mass = 9 g, vol = 1.5cm3 • mass = 3 g, vol = 2 cm3

  14. Tonight’s Homework: • Read pages 31-33 • Work practice problems 12, 13, 14, 15, 16

  15. Today we will… • Learn about scientific notation • See the effect of adding 40 zeros to a number.

  16. Scientific Notation Used to write very big and very small numbers.

  17. Scientific Notation Move the decimal place so that the number is between 1 and 10 Count how many spaces you moved the decimal point If you moved it to the left, the exponent is positive; to the right, it is negative.

  18. Scientific Notation The diameter of the sun is 1,390,000,000 m

  19. Scientific Notation The diameter of the sun is 1,390,000,000 m 1.39 x 109 m

  20. Scientific Notation factor exponent The diameter of the sun is 1,390,000,000 m 1.39 x 109 m

  21. Scientific Notation The mass of a proton is 0.000,000,000,000,000,0 00,000,000,001,672,62 kg

  22. Scientific Notation The mass of a proton is 0.000,000,000,000,000,0 00,000,000,001,672,62 kg 1.672,62 x 10-27

  23. Scientific Notation Adding: If the exponents are the same, add the factors and leave the exponents alone.

  24. Scientific Notation Adding numbers is easy if the exponent is the same. 7.35 x 102 m + 2.43 x 102 m

  25. Scientific Notation Adding numbers is easy if the exponent is the same. 7.35 x 102 m + 2.43 x 102 m 9.78 x 102 m

  26. Scientific Notation If the exponents are not the same, you have to move the decimal point on one of the numbers to make them the same.

  27. Scientific Notation 4.38 x 106 + 1.51 x 107 ?

  28. Scientific Notation 1.51 x 107 = 15.1 x 106 4.38 x 106 + 1.51 x 107

  29. Scientific Notation 19.48 x 106 4.38 x 106 + 15.1 x 106

  30. Scientific Notation 19.48 x 106 Is this number between 1and 10? 4.38 x 106 + 15.1 x 106

  31. Scientific Notation 19.48 x 106 = 1.948 x 107 4.38 x 106 + 15.1 x 106

  32. Scientific Notation 19.48 x 106 = 1.948 x 107 The factor got smaller 4.38 x 106 + 15.1 x 106

  33. Scientific Notation 19.48 x 106 = 1.948 x 107 The factor got smaller The exponent gets bigger 4.38 x 106 + 15.1 x 106

  34. Scientific Notation Multiplying: Multiply the factors and add the exponents. (The exponents do not have to be the same.)

  35. Scientific Notation 2 x 104 x3 x 105 6 x 109

  36. Homework • Read pages 31-33 • Work practice problems 12, 13, 14, 15, 16

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