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Author Question: Under what conditions is the relationship between mass and weight constant? a. In outer space c. ... (Read 63 times)

go.lag

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on: Jul 16, 2018
Under what conditions is the relationship between mass and weight constant?
 
  a. In outer space c. At the center of the Earth
  b. At zero gravity d. Near the surface of the Earth

Question 2

For solids and liquids, density can be expressed in which of the following units? 1. g/L 2. mg/mL 3. g/cc 4. L/cc
 
  a. 1 c. 2 and 4
  b. 2 and 3 d. 1, 2, and 3


leahm14

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Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: D
Near the surface of the Earth, two equations apply: d = m/v, dw = w/v. In space and at zero gravity, weight is not a factor; at the Earth's core, extreme gravitational forces would increase the weight as mass remained constant.

Answer to Question 2

ANS: D
For solids and liquids, density = grams (g)/liter (L) or grams (g)/cubic centimeter (cm3). Using d = g/L, divide both sides by 1000. Density can also be expressed in mg/mL.


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