Math Skills
     The Answers

Physics Intro Quiz - Math
  1. 14
  2. 21
  3. 81
  4. 1.5
  5. 2
  6. 7
  7. 49
  8. 4
  9. 1/2
  10. 3/4
  11. Use ruler to draw, area is 12 cm2
  12. Reduce
    1. 1/3
    2. 3/2
    3. 2
    4. 3/4

Round off Units

When rounding off use the same number of digits as the least accurate given number.
  1. 54
  2. 8.3
  3. 5.64
  4. 22.9
  5. 80
  6. 68
  7. 2.0
  8. 264
  9. 3/4
  10. 8/15

Word problems using a formula

  1. 3x3 = 9 cm2
  2. (1/2 bxh) (1/2)5.5 x 4.2 = 11.55 = 12 cm2
  3. 21.5 x 28.0 = 602 cm2
  4. Area = 3.14 x (1.6)2 = 8.04 cm 2
    Circumference 3.14 x 3.2 = 10.0 cm
  5. D = m/V 45.63 / 40.22 = 1.135 g/cm3