Quarter 1 Summative test
Quiz by Sigfred Allen Alisbo
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- Q1
You're measuring the length of a table, and you find it to be 1.78 meters. If you want to round this measurement to the nearest decimeter, what value should you record?
1.80 meters
1.7 meters
2 meters
NO ANSWER
1.8 meters
300sSTEM_GP12EU-Ia1 - Q2
You're calculating the average speed of a car during a road trip, and the speedometer reads 62.3 mph. To represent this value with one decimal place, what should you round it to?
62.0 mph
62.3 mph
62.4 mph
62.30 mph
NO ANSWER
300sSTEM_GP12EU-Ia1 - Q3
You are measuring the weight of a bag of sugar, and the scale shows 4.85 kg. If you need to round this weight to the nearest tenth of a kilogram, what value should you use?
4.85 kg
4.8 kg
5.0 kg
4.9 kg
300sSTEM_GP12EU-Ia1 - Q4
In a science experiment, you measure the temperature of a liquid to be 27.6°C. If you need to round this measurement to the nearest degree Celsius, what should you
NO ANSWER
27°C
28°C
27.0°C
27.6°C
300sSTEM_GP12EU-Ia1 - Q5
In scientific notation, which of the following represents the speed of light in a vacuum (approximately 299,792,458 meters per second)?
NO ANSWER
2.99792458 x 106 m/s
2.99792458 x 108 m/s
2.99792458 x 107 m/s
2.99792458 x 109 m/s
300sSTEM_GP12EU-Ia1 - Q6
A bacterium is about 0.0000025 meters long. In scientific notation, this length is written as:
2.5 x 10-4 meters
2.5 x 10-6 meters
NO ANSWER
2.5 x 10-5 meters
2.5 x 10-7 meters
300sSTEM_GP12EU-Ia1 - Q7
The diameter of a human hair is about 0.000075 meters. In scientific notation, this diameter is written as:
7.5 x 10-5 meters
7.5 x 10-6 meters
7.5 x 10-3 meters
7.5 x 10-4 meters
NO ANSWER
300sSTEM_GP12EU-Ia1 - Q8
What is the result of adding 3.2 x 10^4 m to 1.5 x 10^3 m?
NO ANSWER
3.21 x 104 m
3.215 x 104 m
3.35 x 103 m
3.35 x 107 m
300s - Q9
When you multiply 2.5 x 105 kg by 4.0 x 102 m/s², what is the result in scientific notation?
1.0 x 107 N
10.0 x 107 N
1.0 x 108 N
10.0 x 105 N
NO ANSWER
300s - Q10
If you add 2.7 x 109 J to 1.3 x 109 J, what is the result in scientific notation?
4.0 x 1018 J
4.0 x 109 J
NO ANSWER
3.0 x 109 J
4.0 x 108 J
300sSTEM_GP12EU-Ia1 - Q11
Which among the following does not belong to the group?
Instrumental Errors
Calibration Errors
Methodological Errors
Human Errors
NO ANSWER
300s - Q12
This error occurs when measurements are rounded to a specific number of decimal places or significant figures, leading to slight discrepancies.
Round-off Errors
Statistical Errors
NO ANSWER
Zero Errors
Instrumental Errors
300sSTEM_GP12EU-Ia3 - Q13
This are errors that are introduced by the experimenter, such as reading a scale incorrectly or making mistakes during data recording.
NO ANSWER
Zero Error
Instrumental Error
Calibration Error
Human Errors
300sSTEM_GP12EU-Ia3 - Q14
Which of the following statements is true regarding accuracy and precision in measurements?
NO ANSWER
Accuracy and precision are the same concepts and can be used interchangeably.
Accuracy refers to how close a measurement is to the true value, while precision refers to the consistency of measurements.
Accuracy relates to how many significant figures a measurement has, while precision measures the deviation from the mean.
Accuracy refers to the number of decimal places in a measurement, while precision measures the range of values.
300sSTEM_GP12EU-Ia2 - Q15
If you obtain the following results: 5.21 g, 5.22 g, 5.23 g, 5.21 g, and 5.22 g, what can you conclude about the accuracy and precision of your measurements? if the standard measurement is 5.21g.
The measurements are accurate but not precise.
NO ANSWER
The measurements are precise but not accurate.
The measurements are both accurate and precise.
The measurements are neither accurate nor precise.
300sSTEM_GP12EU-Ia2