Math skills are always important in physics. As you move to the next chapters, you will be asked to know more and more math. I hope this chapter helped you become more familiar with math questions.
1. Convert the following scientific notations into decimal numbers.
a. 5.8 * 102 b. 1.2 * 10-3 c. 9.30001 * 100
2. State the number of significant digits:
a. 1.10 b. 0.000000023000 c. 12004
3. Solve the following problem with correct numbers of significant digits.
a. 7.29 + 2.0001 - 3.2 b. 100.3 - 5.2 * 3.11 c. 2.1 * 5.2 - 1.45 / 0.02303
4. Solve the following equation for x.
a. 5 = 2x - 1 b. 36 = 4x2 c. 5x = 15
5. You are looking up at the top of a building at 30 degrees. If the building is 20 m tall, how far are you from the building? Assume that you are 1.70 m tall. (e.g. "10.5 m")
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