Chem 1 Measurements and Calculations Practice Quiz
1. How many grams are there in a kilogram?
a) 10
b) 100
c) 1000
d) 0.01
2. How many centimeters are in a meter?
a) 10
b) 100
c) 1000
d) 0.01
3. How many milligrams are in a gram?
a) 10
b) 100
c) 1000
d) 0.01
4. How many milliliters are in 1 cubic centimeter?
a) 1
b) 10
c) 1000
d) 0.1
5. The symbol mm represents
a) micrometer
b) millimeter
c) milliliter
d) meter
6. The symbols for units of length in order from smallest to largest are
a) m, cm, mm, km
b) mm, m, cm, km
c) km, mm, cm, m
d) mm, cm, m, km
7. The quantity of matter per unit volume is
a) mass
b) weight
c) amount
d) density
8. The unit m3 measures
a) length
b) mass
c) volume
d) density
9. A liter is defined as
a) 1000 m3
b) 1000 cm3
c) 1000 g3
d) 100 m3
10. To calculate the density of an object,
a) multiply its mass and its volume
b) divide its mass by its volume
c) divide its volume by its mass
d) divide its mass by its area
11. Which statement about density is true?
a) Two samples of a pure substance may have different densities.
b) Density is a chemical property
c) Density is a physical property
d) The density of a substance does not depend on temperature.
e) Both c and d
12. The mass of a 5.00 cm3 sample of gold is 96.5g. The density of gold is
a) 0.0518 g/cm3
b) 19.3 g/cm3
c) 101.5 g/cm3
d) 483 g/cm3
13. The density of sugar is 1.59 g/cm3. The mass of a sample is 4.0 g. Find the volume of the sample.l
a) 2.5 cm3
b) 6.36 cm3
c) 0.39 cm3
d) 2.5 g/cm3
14. Convert -25 degrees Celsius to the Kelvin scale.
a) -323 K
b) -248 K
c) 248 K
d) 323 K
15. If one inch equals 2.54 cm, how many centimeters equals 1.00 yard?
a) 0.07 cm
b) 14.17 cm
c) 36 cm
d) 91.4 cm
16. When determining the number of significant digits in a measurement,
a) all zeros are significant
b) all nonzero digits are significant
c) all zeros between two nonzero digits are not significant
d) all nonzero digits are not significant
17. To two significant figures, the measurement 0.0255 g should be reported as
a) 0.02 g
b) 0.025 g
c) 0.026 g
d) 2.5 x 102 g
18. When multiplying and dividing numbers, the answer must not have more significant figures than the
a) number in the calculation with fewest significant figures
b) number in the calculation with most significant figures
c) average number of significant figures in the calculation
d) total number of significant figures in the calculation
19. The number of significant figures in the measurement 0.000305 kg is
a) 3
b) 4
c) 5
d) 6
20. The number of significant figures in the measurement 0.00320 g is
a) 2
b) 3
c) 5
d) 6
21. The measurement that has been expressed to four significant figures is
a) 0.0020 mm
b) 0.00402 mm
c) 30.00 mm
d) 402.10 mm
22. The number of significant figures in the measurement 210 cm is
a) 1
b) 2
c) 3
d) 4
23. The measurement that has only nonsignificant zeros is
a) 0.0037 ml
b) 60.0 ml
c) 400. ml
d) 506 ml
24. Using a ruler with 0.1 cm divisions, which one of the following is the only possible correct
measurement for the length of an object measured by this ruler?
a) 5 cm
b) 5.1cm
c) 5.12 cm
d) 5.125 cm
25. When 64.4 is divided by 2.00, the correct number of significant figures in the result is
a) 1
b) 2
c) 3
d) 4
26. The dimensions of a rectangular solid are measured to be 1.59 m, 2 m, and 9.9 m. The volume should
be recorded as
a) 30 cubic meters
b) 31 cubic meters
c) 31.4 cubic meters
d) 31.5 cubic meters
27. Divide 5.7 by 2. The quotient is correctly reported as
a) 2.8
b) 2.85
c) 2.9
d) 3
28. Written in standard scientific notation, the measurement 0.000065 cm is
a) 65 x 10-4 cm
b) 6.5 x 10-5 cm
c) 6.5 x 10-6 cm
d) 6.5 x 10-4 cm
29. Expressed in standard scientific notation, 0.0930 m is
a) 93 x 10-3 m
b) 9.3 x 10-3 m
c) 9.30 x 10-2 m
d) 9.30 x 10-4 m
30. The speed of light is 300,000 km/s. In standard scientific notation, this speed is
a) 3 x 105 km/s
b) 3.00 x 105 km/s
c) 3.0 x 106 km/s
d) 3.00 x 106 km/s
31. When 1.92 x 10-6 kg is divided by 6.8 x 102 ml, the quotient in kg/ml equals
a) 2.8 x 10-4
b) 2.8 x 10-5
c) 2.8 x 10-8
d) 2.8 x 10-9
32. When 6.02 x 1023 is multiplied by 9.1 x 10-31, the product is
a) 5.5 x 10-8
b) 5.5 x 1054
c) 5.5 x 10-7
d) 5.5 x 10-53
33. 275ºF is equivalent to :
a) 230ºC
b) 135ºC
c) 1182.5ºC
d) 120.5ºC
e) none of these
34. The number of millimeters in 0.101 meters is
a) 1.01 x 10-4 mm
b) 1.01 x 10-3 mm
c) 1.01 x 104 mm
d) 1.01 x 102 mm
e) 9.90 x 103 mm
35. If 1.000 kg equals 2.205 lb, what is the mass in pounds of a human who weighs 75.0 kg?
a) 165.4 lb
b) 34.10 lb
c) 145.9 lb
d) 75.05 lb
e) none of these
36. 1.4 x 105 mm is how many kilometers?
a) 1.4 x 10-1 km
b) 1.4 x 100 km
c) 1.4 x 101 km
d) 1.4 x 102 km
e) 1.4 x 105 km
37. 25m/s is how many kilometers per hour?
a) 1.5 km/hr
b) 9.0 x 107 km/hr
c) 6.9 x 10-6 km/hr
d) 90. km/hr
e) 9.0 km/hr
----------Key---------1. (c)
2. (b)
3. (c)
4. (a)
5. (b)
6. (d)
7. (d)
8. (c)
9. (b)
10. (b)
11. (c)
12. (b)
13. (a)
14. (c)
15. (d)
16. (b)
17. (c)
18. (a)
19. (a)
20. (b)
21. (c)
22. (b)
23. (a)
24. (c)
25. (c)
26. (a)
27. (d)
28. (b)
29. (c)
30. (a)
31. (d)
32. (c)
33. (b)
34. (d)
35. (a)
36. (a)
37. (d)