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Physics and Chemistry 3rd ESO                                                               Albarregas High School        ...
Physics and Chemistry 3rd ESO                                                                Albarregas High School     4....
Physics and Chemistry 3rd ESO                                                         Albarregas High School     7. Find t...
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Scientific work activities

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Activities of the unit 2 o

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Scientific work activities

  1. 1. Physics and Chemistry 3rd ESO Albarregas High School Scientific Work Activities 1. Look for the definition of: meter, second and kilogram. 2. Complete the table: Luminous Quantity Length Temperature intensity Unit meter kilogram mol Symbol m s A 3. Change the units and fill in the table. Use scientific notation if it is necesary 0,2 hours minutes seconds hours 12 minutes seconds hours minutes 5·106 seconds m 0,026 cm mm m cm 4·10-3 mm 10 m2 -4 cm2 mm2 m2 cm2 7 mm2 g cg 5 mg 5g cg mg kg g 0,000 022 mg 6 ns s 8 Gm m 4,4 g kg 0,6 MW W(watt) 200 g/L kg/m3Teacher: José Vicente Pacheco Pág 1 de 3
  2. 2. Physics and Chemistry 3rd ESO Albarregas High School 4. Write the following numbers in scientific notation. How many sig figs do they have? Quantity Sig. figures 0,000 234 2,34·10-4 3 2 460 000 102,01 0,2004 5532 4 500 000 000 1554,02 0,000 000 033 00 5. Make the calculations and round whith the right number of decimal places:a) 4.60 + 3 = b) 0.008 + 0.05 = c) 22.4420 + 56.981 =d) 200 - 87.3 = e) 67.5 - 0.009 = f) 71.86 - 13.1 =g) 13.7 x 2.5 = h) 200 x 3.58 = i) 0.00003 x 727 =j) 5003 / 3.781 = k) 89 / 9.0 = l) 5000. / 55 = 6. Find the area of your desk. Explain how yo do it and what you need measure. Express the result using units of the SI with the right number of decimal places. Measures: Units RESULT S.I.Teacher: José Vicente Pacheco Pág 2 de 3
  3. 3. Physics and Chemistry 3rd ESO Albarregas High School 7. Find the volume of your bedroom (be carefully with the significant figures). Explain how yo do it and what you need measure. Measures units RESULT S.I. 8. British people use very often units that arent in the SI. Find out their equivalence with the units of the SI Unit Magnitude Equivalence with SI units mile yard foot ounce pound pint Fluid ounce gallon 9. In Spain, there are ancient units used before the SI exits. Some of them are still used in specific ocasions. Find out their equivalence in the SI. Unit Magnitude Equivalence with SI units vara arroba onza cuartillo libra Activities from your Physics and Chemistry book: – Page 13: Exercices 8 and 9. – Page 18: Exercise 13. – Page 19: Exercise 23. – Page 20: Exercise 27 and 30. – Page 21: Exercise 36.Teacher: José Vicente Pacheco Pág 3 de 3

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