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- 1. Multiple Choice
Which of the following statements best describes the importance of scientific notation?
It is used to standardized writing numbers in the powers-of-ten.
It is used to report values with uniform format.
It is used to accurately report data from laboratory experiments.
It is used to easily write very small and very large quantities.
- 2. Multiple Choice
How many significant figures are there in 603.010 m?
3
5
6
4
- 3. Multiple Choice
6 022 140 760 000 000 000 000 mol⁻¹. How will you write it in the standard form of scientific notation with four significant figures?
6.022 ✕ 10²³ mol⁻¹
60.221 ✕ 10²² mol⁻¹
6.0222 ✕ 10⁻²³ mol⁻¹
6 023 ✕ 10¹⁸ mol⁻¹
- 4. Multiple Choice
What is the volume of a block of steel with a length of 10.6 cm, width of 7.32 cm and a height of 5.10 cm?
395
395.7
396
400.0
- 5. Multiple Choice
The speed of a car can be calculated by dividing the distance traveled by the unit time. What is the speed of the car in m/s if it traveled 5 300 m in 45 min?
1.96 m/s
2.0 m/s
120 m/s
7100 m/s
- 6. Multiple Choice
Which of the following quantifies the doubt that exists in any reported value of measurement?
Precision
Error
Precision
Uncertainty
- 7. Multiple Choice
A pendulum was reported to have a period of 2.25 ± 0.05 s. Which among the values below fall in this range?
2.10 s
2.31
2.29 s
2.09 s
- 8. Multiple Choice
Which of the following terms is defined as the difference between the true value and the measured value?
Mistake
Error
Deviation
Precision
- 9. Multiple Choice
How will you correct your measurement if the first 1 cm of your ruler is cut off?
Proceed with the measurement accordingly since 1 cm is very negligible.
Start measuring at the 2-cm mark then subtract 1 cm from the final measurement.
Use a more precise measuring device such as a micrometer caliper.
Use another measuring device with complete scale divisions.
- 10. Multiple Choice
The mass of a grain of sand is approximately 0.000000031 grams. How will you write it in the standard form of scientific notation?
0.31 ✕ 10⁻⁷ g
3.1 ✕ 10⁻⁸ g
3.1 ✕ 10⁸ g
0.0031 ✕ 10⁵ g
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