Physics: Chapter 2 Test

20 Questions | By Jcorder | Updated: Mar 22, 2022 | Attempts: 651

Questions

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Questions and Answers

1.

The conversion factor for changing one unit of length to another in the metric system is a multiple of:
- A.
  
  3
- B.
  
  10
- C.
  
  12
- D.
  
  5280
2.

The conversion factor for changing one unit of length to another in the English system may be:
- A.
  
  3
- B.
  
  12
- C.
  
  5280
- D.
  
  All of the above
3.

Your normal stride as you walk or run would most closely approximate a:
- A.
  
  Millimeter
- B.
  
  Centimeter
- C.
  
  Meter
- D.
  
  Kilometer
4.

What is the length of the object pictured next to the metric ruler?
- A.
  
  2.60 inches
- B.
  
  2.60 centimeters
- C.
  
  2.5 centimeters
- D.
  
  3.5 centimeters
5.

The metric unit of length closest to the thickness of a toothpick is the:
- A.
  
  Kilometer
- B.
  
  Meter
- C.
  
  Centimeter
- D.
  
  Millimeter
6.

The unit of time most often used by physicists is the:
- A.
  
  Second
- B.
  
  Minute
- C.
  
  Hour
- D.
  
  Year
7.

The standard second is determined by comparison with the:
- A.
  
  Average solar day
- B.
  
  Speed of light at the equator
- C.
  
  Standard pendulum in France
- D.
  
  Oscillations of a cesium-133 atom
8.

The smallest measurable length of a centimeter stick is 0.001 cm. Which of the following best describes this limit?
- A.
  
  Accuracy
- B.
  
  Precision
- C.
  
  Rounding
- D.
  
  Experiment
9.

The approximate number of days in one year is 365.25. The number of seconds in one year is:
- A.
  
  21,915
- B.
  
  1,314,900
- C.
  
  31,558,000
- D.
  
  3,144,800,000
10.

An electronic clock gives the elapsed time as 7:34:21. How many seconds does this represent?
- A.
  
  73,421
- B.
  
  27,261
- C.
  
  2,481
- D.
  
  734.21
11.

The kilogram, the unit used as the standard for mass, is equal to the mass of:
- A.
  
  1,000 cubic centimeters of water
- B.
  
  1 cubic centimeter of water
- C.
  
  A 1,000-cubic centimeter platinum-iridium cylinder in France
- D.
  
  A 1-cubic centimeter platinum-iridium cylinder in France
12.

The measure of mass when it is thought of as a resistance to change in motion is called:
- A.
  
  Velocity
- B.
  
  Acceleration
- C.
  
  Inertia
- D.
  
  Speed
13.

If scientific notation were used to represent the number 5,280, it would be written:
- A.
  
  5:2:8:0\x00
- B.
  
  5.280 × 10^3
- C.
  
  52.80 x 10^2
- D.
  
  5,280 x 10^0
14.

Using scientific notation, the number 0.00000125 is written as:
- A.
  
  1/800,000
- B.
  
  1.25 x 10^-6
- C.
  
  1.25 x 10^6
- D.
  
  8.00 x 10^5
15.

Using scientific notation, the ratio 3.2 is written as: ----------- 1,280
- A.
  
  0.0025
- B.
  
  25 x 10^4
- C.
  
  2.5 x 10^-3
- D.
  
  4.00 x 10^2
16.

One kilogram of mass has a weight of about 2.2 pounds. The weight of a 50.0-kilogram Rottweiller expressed in pounds is:
- A.
  
  11.0
- B.
  
  110
- C.
  
  2.27
- D.
  
  22.7
17.

The weight of a BMW Z-3 1.9 roadster is approximately 2,350 pounds. The weight expressed in scientific notation is:
- A.
  
  2.35 x 10^3 pounds
- B.
  
  23.50 x 10^3 pounds
- C.
  
  2.35 x 10^2 pounds
- D.
  
  23.5 x 10^2 pounds
18.

Compared to a 1.0-kilogram chunk of iron, a 1.0-kilogram piece of Styrofoam:
- A.
  
  Has a larger mass
- B.
  
  Contains more matter
- C.
  
  Takes up more space
- D.
  
  Has more inertia
19.

Compared to a bicycle, an automobile pushed by a student has more:
- A.
  
  Speed
- B.
  
  Velocity
- C.
  
  Acceleration
- D.
  
  Inertia
20.

The value for the ratio of the mass of 1 kilogram to the mass of 1 proton is about:
- A.
  
  1.8 x 10^3
- B.
  
  5.6 x 10^-4
- C.
  
  5.9 x 10^26
- D.
  
  5.9 x 10^-26