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Unit 2 Test Review (Measurements)

Total questions: 50

Worksheet time: 4hrs 10mins

Name
Class
Date
1.

Unit 2: Which of the following is a derived SI (metric) unit?

a)
Kelvin
b)
Second
c)
Mole
d)
Liter
2.

Unit 2: Which of the following is a base unit?

a)

Minute

b)

Foot

c)

Mile

d)

Mole

3.

Unit 2: The Celsius scale is preferred because it is an absolute temperature scale, not relative like the Fahrenheit scale.

a)
true
b)
false
4.

Unit 2: Convert 1,258 mL to cm3

a)

1,258 cm3

b)

1.258

c)

1.258 x 10-3

d)

1.258 x 106

5.

Unit 2: Which choice correctly represents 8,900 g using scientific notation?

a)

8.9 x 102

b)

89 x 102

c)

8.9 x 10-3

d)

89 x 10-2

e)

8.9 x 103

6.

Unit 2: Which choice correctly represents 0.014 g using scientific notation?

a)

14 x 102 g

b)

14 x 10-2 g

c)

1.4 x 10‑2 g

d)

1.4 x 102 g

e)

14 x 10-3 g

7.

Unit 2: Which choice correctly represents 0.0189 g using a prefix?

a)

1.89 μg

b)

1.89 cg

c)

1.89 mg

d)

1.89 kg

e)

1.89 Mg

8.

Unit 2: Which choice correctly represents 0.00100 g using scientific notation and the correct number of significant figures?

a)

1 x 10-3

b)

1.00 x 10-3

c)

1.00 x 103

d)

100 x 105

e)

100 x 10-5

9.

Unit 2: Which choices correctly represents 8,900,000 L using a prefix?

a)
8.9 mL
b)
8.9 cL
c)
8.9 ML
d)
8.9 Gg
e)
8.9 kL
10.

Unit 2: Which choices correctly represents 8,900,000 L in scientific notation?

a)

89 x 103

b)

89 x 105

c)

8.9 x 106

d)

89 x 10-5

e)

8.9 x 10-6

11.

Unit 2: What is the curve, created by the adhesion of water to glass, called in a graduated cylinder?

a)
Convex
b)
Concave
c)
Meniscus
d)
Manifold
e)
Equilibrium
12.

Unit 2: A diamond possesses a density of 3.51 g/cm3. What mass would a sample taking up 145 cm3 of space possess?

a)

509 grams

b)

41.3 grams

c)

141grams

d)

0.0242 grams

e)

74.2 grams

13.

Unit 2: Nickel melts at 1,455 ̊C. Convert this temperature to Fahrenheit given ̊F = 9/5 × ̊C + 32.

a)
2,677 ̊F
b)
776 ̊F
c)
2,910 ̊F
d)
790.6 ̊F
e)
2,651 ̊F
14.

Unit 2: Perform the following mathematics in correct Scientific Notation: (3.2 x 10451 g) + (3 x 10450 g)

a)

6.2 x 10451 g

b)

35 x 10450 g

c)

6.2 x 10901 g

d)

3.5 x 10451 g

e)

3.5 x 10902 g

15.

Unit 2: Perform the following mathematics in correct Scientific Notation: (3.2 x 10451 m) × (3 x 10450 m)

a)

0.96 x 10902

b)

6.2 x 10901

c)

C. 9.6 x 10901

d)

9.6 x 10451

e)

3.5 x 10451

16.

Unit 2: Report the number of significant figures in the following: 0.3000 meters

a)
1
b)
2
c)
3
d)
4
e)
5
17.
Report the number of significant figures in the following: 5400
a)
1
b)
2
c)
3
d)
4
e)
5
18.

Unit 2: Report the number of significant figures in the following: 6.20 x 1021 g

a)

1

b)

2

c)

3

d)

4

e)

5

19.

Unit 2: Report the solution using the correct number of significant figures: 250 m + 12 m =

a)
262 m
b)
260 m
c)
250 m
d)
300 m
20.

Unit 2: Report the solution using the correct number of significant figures: 5.1 cm x 2.22 cm

a)
11.322 cm
b)
11.3 cm2
c)
12 cm2
d)
11 cm2
21.

Unit 2: Report the solution using the correct number of significant figures: 610 g ÷ 8.22 L =

a)
74 g/L
b)
70 g/L
c)
74.2 g/L
d)
74.209 g/L
22.

Unit 2: Report the solution with the appropriate significant figures: 7.703 L - 0.20 L =

a)
7.5 L
b)
7.50 L
c)
7.503 L
d)
7.5030 L
23.

Unit 2: Report the solution with significant figures & in scientific notation. (3.30 x 1015) x (2.195 x 1010) =

a)

7 x 1025

b)

7.2 x 1025

c)

7.24 x 1025

d)

7.244 x 1025

e)

7.2435 x 1025

24.

Unit 2: A blue whale can measure up to 29.9 meters long. Convert this to yards. (1 meter = 3.28 ft & 1 yd = 3 ft)

a)
32.7 yards
b)
3.04 yards
c)
294 yards
d)
27.3 yards
e)
42.5 yards
25.

Unit 2: Convert 0.29 microgram (μg) to centigrams (cg)

a)

2.9 x 10^-7 cg

b)

2.9 x 10^-4 cg

c)

2.9 x 10^-5 cg

d)

2.9 x 10^-6 cg

e)

2.9 x 10^-2 cg

26.

Unit 2: Which of the following measurements of length is the least precise?

a)
356,630 L
b)
96.05 L
c)
2,503 L
d)
4.8 L
27.

Unit 2: Which of the following measurements of length is the most precise?

a)

96.05 m

b)

10 m

c)

1,506,501,000 m

d)

2 m

28.

The International Space Station orbits the planet at a velocity of 28,000 kilometers per hour.

Convert this velocity to Miles per second (miles/sec). (Given 1 mile = 1.609 kilometers)

a)

4.8 miles/sec

b)

7.8 miles/sec

c)

17,000 miles/sec

d)

290 miles/sec

e)

12.5 miles/sec

29.

Convert 7.2 kilograms to milligrams (mg)

a)

7.2 x 10^-6 mg

b)

7.2 x 10^3 mg

c)

7.2 x 10^5 mg

d)

7.2 x 10^6 mg

e)

7.2 x 10^4 mg

30.

What does percent error report on?

a)

Repeatability

b)

Precision

c)

Accuracy

d)

Toxicity

31.

What does Calibration improve upon in a measuring device?

a)

Repeatability

b)

Precision

c)

Accuracy

d)

Battery life

32.
An archaeologist estimated that a fossil was 520 years old. It was actually 500 years old. What was the percent error?
a)
4%
b)
20%
c)
3.8%
d)
none of these
33.
This bullseye demonstrates...
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
34.

This bulls-eye demonstrates . . .

a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
35.

How many kilometers would you travel in 5.0 miles? (Given 1 mile = 1,600 m)

a)

 8.0 km

b)

 312.5 km

c)

8.3 km

d)

8,000 km

36.

What is the significant figure rule for rounding our calculated answers when multiplying and dividing?*

a)

Round final answer to match the value that was least precise

b)

Round final answer to match the value that was most precise

c)

Round final answer to match the value that has the least significant figures

d)

Round final answer to match the value that has the most significant figures

37.

What is the significant figure rule for rounding our calculated answers when Adding and Subtracting?

a)

Round final answer to match the value that was least precise

b)

Round final answer to match the value that was most precise

c)

Round final answer to match the value that has the least significant figures

d)

Round final answer to match the value that has the most significant figures

38.

The statue of liberty is 305 feet tall. What is this in meters?

Given 1 meter = 1.094 yards

a)

87 m

b)

92.9 m

c)

111 m

d)

67 m

39.

Unit 2: How many significant figures are in the measurement 0.00450 kg?

a)

4

b)

5

c)

3

d)

2

40.

Convert 5,300,000 m^3 to km^3

a)

5,300 km^3

b)

5.3 x 10^-6 km^3

c)

0.0053 km^3

d)

5.3 km^3

41.

Unit 2: Which of the following best describes a measurement that is precise but not accurate?

a)

Measurements are close to the true value but not to each other

b)

Measurements are close to each other but far from the true value

c)

Measurements are both close to each other and the true value

d)

Measurements are neither close to each other nor the true value

42.
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
43.
A crayon has a mass of 10g and volume of 5 mL. What is the density?
a)
30 g/mL
b)
15 g/mL
c)
1 g/mL
d)
2 g/mL
44.

Mercury is a liquid metal having a density of 13.6 g/ml. What is the volume of 453.6 g of mercury metal?

a)

33.35 ml

b)

0.03 ml

c)

6168.96 ml

d)

64.52 ml

45.

A cup of sugar has a volume of 237 ml. What is the mass of the cup of sugar if the density is 1.59 g/ml?

a)

376.83 g

b)

149.07 g

c)

0.007 g

d)

0.785 g

46.

What are derived quantities ?

a)

a tendency to do nothing or to remain unchanged.

b)

combination of two or more base quantities

c)

the quantity of motion of a moving body, measured as a product of its mass and velocity.

47.

What is the basic unit of electric current in the metric system?

a)

Volt

b)

Watt

c)

Ampere

d)

Ohm

48.
If the mass of an object is 1000 kg on Earth, what is it's mass on the moon?
a)
10kg
b)
100kg
c)
1000kg
d)
10,000kg
49.

Convert 305 K to degrees Celsius

a)

32 oC

b)

578 oC

c)

112 oC

d)

68 oC

50.

The temperature at which particles stop moving is

a)

0 oC

b)

32 oF

c)

0 K

d)

0 oF

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