1. a. acceleration b. length c. time d. area
If the displacement of an object, x, is related to velocity, v, according to the relation x = Av, the constant, A, has the dimension of which of the following?
a. acceleration
b. length
c. time
d. area

2. → a. acceleration b. length c. time d. area
If the displacement of an object, x, is related to velocity, v, according to the relation x = Av, the constant, A, has the dimension of which of the following?
a. acceleration
b. length
c. time
d. area →

3. a. 34 cubic feet b. 10 cubic feet c. 68 cubic feet d. 3 cubic feet
A crate has the dimensions of 1.0 m x 1.2 m x 0.80 m. If there are 3.28 feet per meter then what is the volume of the crate in cubic feet?
a. 34 cubic feet
b. 10 cubic feet
c. 68 cubic feet
d. 3 cubic feet

4. A crate has the dimensions of 1.0 m x 1.2 m x 0.80 m. If there are 3.28 feet per meter then what is the volume of the crate in cubic feet? →
a. 34 cubic feet
b. 10 cubic feet
c. 68 cubic feet
d. 3 cubic feet
1.0 m x 1.2 m x 0.80 m=0.96 m3
0.96 m3 x (3.28 ft/meter)3= 34 ft3

5. If a jet airplane climbs at an angle of 15 with respect to the horizontal and follows a straight-line path for a distance of 400 m, how much altitude does it gain?
a. 100 m
b. 390 m
c. 141 m
d. 200 m

6. If a jet airplane climbs at an angle of 15 with respect to the horizontal and follows a straight-line path for a distance of 400 m, how much altitude does it gain? →
a. 100 m
b. 390 m
c. 141 m
d. 200 m
400 m y
15o
sin 15o = y/400m
y=(sin 15o)400 m=100 m

7. a. length and force b. power and force c. length and time
Mass, along with what other two quantities, make up the three basic quantities in mechanics used by physicists to derive additional quantities?
a. length and force
b. power and force
c. length and time
d. force and time

8. → a. length and force b. power and force c. length and time
Mass, along with what other two quantities, make up the three basic quantities in mechanics used by physicists to derive additional quantities?
a. length and force
b. power and force
c. length and time
d. force and time →
Mass, length, and time are the three basic quantities of measurement
in the study of mechanics.

9. Note the following mathematical expression: y = x 2
Note the following mathematical expression: y = x 2 . Which one of the statements below is most consistent with this expression?
a. if y doubles, then x quadruples
b. y is greater than x
c. if x doubles, then y doubles
d. if x doubles, then y quadruples

10. Note the following mathematical expression: y = x 2
Note the following mathematical expression: y = x 2 . Which one of the statements below is most consistent with this expression?
a. if y doubles, then x quadruples
b. y is greater than x
c. if x doubles, then y doubles
d. if x doubles, then y quadruples →
Consider, if x=2, then y=4. If you increase x by a factor of 2 so x=4, then y=16.

11. Which of the following formulas is dimensionally consistent with an expression which would yield a value for time -1 (v is velocity, x is distance, and t is time)?
a. v/x
b. v2/x
c. x/t
d. V2 t

12. Which of the following formulas is dimensionally consistent with an expression which would yield a value for time -1 (v is velocity, x is distance, and t is time)? →
a. v/x
b. v2/x
c. x/t
d. V2 t

13. Since 1967 the standard definition for the second of time has been based on which of the following?
a. characteristic frequency of the cesium-133 atom
b. average solar day
c. sidereal day
d. Greenwich Civil Time

14. Since 1967 the standard definition for the second of time has been based on which of the following?→
a. characteristic frequency of the cesium-133 atom
b. average solar day
c. sidereal day
d. Greenwich Civil Time

15. Since 1983 the standard meter has been defined in terms of which of the following?
a. specific alloy bar housed at Sevres, France
b. wavelength of light emitted by krypton-86
c. distance from the Earth's equator to the north pole
d. the distance light travels in 1/(3 x 108) second

16. Since 1983 the standard meter has been defined in terms of which of the following?
a. specific alloy bar housed at Sevres, France
b. wavelength of light emitted by krypton-86
c. distance from the Earth's equator to the north pole
d. the distance light travels in 1/(3 x 108) second →

17. Which of the following formulas is dimensionally consistent with an expression yielding a value for acceleration (v is velocity, x is distance, and t is time)?
a. v/t2
b. v/x2
c. v2/t
d. v2/x

18. Which of the following formulas is dimensionally consistent with an expression yielding a value for acceleration (v is velocity, x is distance, and t is time)?
a. v/t2
b. v/x2
c. v2/t
d. v2/x →

19. Which point is nearest the y-axis?
b. (4,3)
c. (-5,2)
d. (-2,-5)

20. Which point is nearest the y-axis?
b. (4,3)
c. (-5,2)
d. (-2,-5) →

21. Which one of the choices below represents the preferred practice regarding significant figures when multiplying the following: 10.5 x 8.8 x 3.14?
a. 290 b c
d. 300

22. Which one of the choices below represents the preferred practice regarding significant figures when multiplying the following: 10.5 x 8.8 x 3.14? →
a. 290 b c
d. 300
When multiplying or dividing numbers, keep the lowest number of
significant figures.

23. The speed of a boat is often given in knots
The speed of a boat is often given in knots. If a speed of 5 knots were expressed in the SI system of units, the units would be
a. m
b. s
c. m/s
d. kg/s

24. The speed of a boat is often given in knots
The speed of a boat is often given in knots. If a speed of 5 knots were expressed in the SI system of units, the units would be
a. m
b. s
c. m/s
d. kg/s →

25. If a is acceleration, v is velocity, x is position, and t is time, then which equation is not dimensionally correct?
a. t = x/v
b. a = v2 /x
c. v = a/t
d. t2 = 2x/a

26. If a is acceleration, v is velocity, x is position, and t is time, then which equation is not dimensionally correct?
a. t = x/v
b. a = v2 /x
c. v = a/t
d. t2 = 2x/a →

27. Which one of the choices below represents the preferred practice regarding significant figures when adding the following: ? a b
c. 57.6
d. 58

28. Which one of the choices below represents the preferred practice regarding significant figures when adding the following: ? a b
c. 57.6
d. 58 →
When adding or subtracting numbers, keep the lowest number of
decimal places.