08 09 os Sv Phys Test 1 Seorepts /50 pts Write clearly and show all work. Always

Question

08 09 os Sv Phys Test 1 Seorepts /50 pts Write clearly and show all work. Always put full answer in box at end with complete and proper units. All ?umerical answers (08-Q19) are to be reported with hree significant figures. For this test,' g=10.0ms2 IN-kg m/s2 IJs|Nm=1kg m 2/s2 1 watt-Ws-kg m 2/s 1. Which of the following is in correct order according to increasing certainty? (a) hypothesis, law, theory (b) hypothesis, theory, law (c) synthesis, law, theory (d) theory, hypothesis, law 2. Which of the following is an unprovable assumption used by scientists? (a) The law of gravity (b) Occam's razor (c) The uncertainty principle (d) The law of inertia 3. Which political event overlapped with the origin of the metric system? (c) The Reformation (a) The First World War (b) The French and Indian War (d) The French Revolution 4. Which of the following are the three basic units of the metric system? (c) second, gram, milliamp (a) ounce, inch, hour (b) second, gram, meter (d) second, liter, meter/s? 4 5. Which of the following are possible units for energy? (a) m/s (b) kg m'/s (c) m/s2 (d) kg/cm 6. Give the name of each metric unit:

Explanation / Answer

1. Ans: (b) hypothesis, theory, law

2. Ans(b) Occam's razor

3. metric system - 1799

and the french revolution - 1799

Ans(D)

4. (b) second, gram, meter  

5. Energy = N m and N = kg m / s^2

= kg m^2 / s^2

Ans(b)

  

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