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WorksheetsGeneral Physics I First Quarter Exam
Total questions: 45
Worksheet time: 17mins
Which prefix represents 10^-6?
centi-
micro-
milli-
nano-
One gigabyte (GB) is equal to how many bytes?
10^3
10^6
10^9
10^12
How many quarts are there in one gallon?
2
4
6
8
How many feet make up one yard?
3
6
9
12
Which term refers to how close a measurement is to the true or accepted value?
Accuracy
Error
Precision
Validity
Which term refers to how close repeated measurements are to one another, regardless of correctness?
Accuracy
Error
Precision
Validity
Which of the following describes a measurement that is both accurate and precise?
Results are close to the accepted value but scattered widely.
Results are far from the accepted value but tightly grouped.
Results are close to the accepted value and are consistent.
Results are neither close to the accepted value nor consistent.
This usually results from the experimenter's inability to take the same measurement in exactly the same way to get exactly the same number.
Absolute error
Percent error
Random error
Systematic error
Systematic errors lead to a lack of:
accuracy in measurement
precision in measurement
timing on its reaction time
significant digits in measurement
When repeating an experiment, a student notices that measurements vary slightly due to unpredictable factors like temperature changes or reaction time. This type of error is called:
Human error
Random error
Systematic error
Calculation error
Which of the following rules for significant figures is correct?
All zeros are significant.
Trailing zeros are never significant.
Leading zeros are always significant.
Non-zero digits are always significant.
How many significant figures are in the number 0.00450?
2
3
4
5
In a right triangle, the side opposite the right angle is called the:
Base
Hypotenuse
Adjacent side
Opposite side
Which trigonometric function uses the ratio of the opposite side over the adjacent side?
Cosine
Sine
Tangent
Cotangent
How many inches is 5'6"?
60
66
72
81
How many yards is 9 miles?
12,672 yards
14,500 yards
15,840 yards
16,040 yards
A storage tank holds 12 gallons of water. If 1 gallon = 3.785 liters, how many liters does the tank hold?
30.1 L
45.4 L
48.0 L
50.2 L
Convert 5.6 x 103 g into kilograms.
0.56 kg
5.6 kg
56 kg
5,600 kg
The laboratory balance shows a mass of 0.05200 kg. How many significant figures does this measurement have?
2
3
4
5
A scientist records a measurement as 0.000314 m. Which is the correct scientific notation with 3 significant figures?
3.14 x 10-3
3.14 x 10-4
3.14 x 10-5
3.14 x 104
A car travels 1.2 × 10² km. Convert this to meters and evaluate the scientific notation.
1.2 × 103 km
1.2 × 104 km
1.2 × 105 km
1.2 × 106 km
A recipe requires 5 pints of juice. How many quarts is this?
2 quarts
2.5 quarts
3 quarts
4 quarts
A scale reads 750 pounds. Express this weight in tons in scientific notation.
2.5 × 10-1 tons
3.75 × 10-1 tons
5 x 10-1 tons
7.5 x 10-1 tons
A student measures the boiling point of water at 100°C (true value). His measurements are: 99.8°C, 100.1°C, 100.0°C. Which statement is correct?
Accurate but not precise
Precise but not accurate
Both accurate and precise
Neither accurate nor precise
The volume of a liquid is 20.5 ml. Which of the following sets of measurements provides the value with good accuracy?
18.6 ml, 17.6 ml, 19.6 ml, 17.2 ml
18.8 ml, 19.0 ml, 19.2 ml, 18.8 ml
19.3 ml, 19.2 ml, 18.6 ml, 18.7 ml
20.2 ml, 20.5 ml, 20.3 ml, 20.1 ml
The mass of a sample of copper nitrate is 4.82 g. A student measures the mass and finds it to be 4.81 g, 4.82 g, 4.79 g, and 4.80 g in the first, second, third, and fourth trials, respectively. Which of the following statements is true for his measurements?
They have good accuracy but poor precision.
They have poor accuracy but good precision.
They are neither precise nor accurate.
The accepted value is 1.45. Which correctly describes this student's experimental data?
Accurate but not precise
Both accurate and precise
Precise but not accurate
Neither accurate nor precise
Which of the following will allow measurement of a liquid's volume with the greatest precision?
50 ml cylinder graduated in 1ml increments
100 ml cylinder graduated in 0.5 ml increments
100 ml cylinder graduated in 1 ml increments
200 ml cylinder graduated in 5 ml increments
A metal rod is measured to be 15.8 cm, but its actual length is 16.0 cm. What is the absolute error?
0.2 cm
0.02 cm
1.2 cm
16.0 cm
A student measures the mass of a rock as 49 g, while the actual mass is 50 g. What is the percent error?
0.02%
2%
5%
20%
A thermometer reads 100.5 °C, but the actual boiling point of water is 100 °C. What is the relative error?
0.005
0.5
0.005
0.05
Two students measured the density of a liquid: one got 1.20 g/mL, the other got 1.18 g/mL. What is the percent difference?
1.67%
1.85%
2.00%
2.50%
Two groups measured the mass of a block with true mass 50.0 g. Which group is more accurate and why?
Group A, smaller percent error
Group B, smaller percent error
Both equal accuracy
Neither, both inaccurate
A group measured a rod with a true length of 60.0 cm. Their results were: GROUP 1 Trial 1: 59.9 cm Trial 2: 59.8 cm Trial 3: 59.9 cm GROUP 2 Trial 1: 61.2 cm Trial 2: 61.1 cm Trial 3: 61.3 cm Which group is more precise, and which is more accurate?
Group 1 is more precise and more accurate
Group 2 is more precise but less accurate
Group 1 is more precise but less accurate
Group 2 is more accurate than Group 1
Given Data: A line was measured in five trials, and the following values were obtained: 100.58 m, 100.40 m, 100.38 m, 100.40 m, 100.46 m. What is the mean of the measurements?
100.38 m
100.44 m
100.58 m
100.50 m
What is the mean deviation of the measurements?
0.061 m
0.044 m
0.082 m
0.100 m
What is the variance of the measurements?
0.0045 m²
0.0067 m²
0.0080 m²
0.0100 m²
What is the standard deviation of the measurements?
0.082 m
0.067 m
0.060 m
0.044 m
What is the measure of the line (quantity ± uncertainty)?
100.44 ± 0.04 m
100.44 ± 0.06 m
100.44 ± 0.08 m
100.44 ± 0.10 m
A rectangular box is measured as: Length l = 12.0 ± 0.1 cm Width w = 8.00 ± 0.05 cm Height h = 5.00 ± 0.02 cm Find the perimeter of the base with uncertainty P=2(L+W)
40.0 ± 0.15 cm
40.0 ± 0.20 cm
40.0 ± 0.25 cm
40.0 ± 0.30 cm
Find the area of the top face with uncertainty (A=LW)
96.0 ± 0.5 cm2
96.0 ± 0.8 cm2
96.0 ± 1.4 cm2
96.0 ± 2.0 cm2
Find the volume with uncertainty (V=LWH)
480.0 ± 6.4 cm3
480.0 ± 8.9 cm3
480.0 ± 12.0 cm3
480.0 ± 24.0 cm3
A right triangle has an angle of 30° and a hypotenuse of 12 cm. What is the length of the side opposite the angle?
6 cm
12 cm
10.4 cm
3 cm
In a right triangle, the adjacent side to θ is 8 cm and the hypotenuse is 10 cm. Find cos θ.
0.6
0.8
0.75
0.64
The opposite side of θ is 7 cm and the adjacent side is 24 cm. Find tan θ.
0.28
0.25
0.29
0.30
