Measurements_L8
Quiz by Sarah Pamela S. Baul
Grade 8
Science
Philippines Curriculum: Grades K-10 (MELC)
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19 questions
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- Q1Which is NOT true about a measurement?It includes all known digits plus one estimated digit.It is used to objectively describe biological processes.It is a comparison of an unknown quantity with a known standard unit represented through a measuring device.Its precision increases as the number of significant figures increases.45s
- Q2Which physical quantity refers to the amount of matter in an object?masstimetemperaturelength30s
- Q3What is the precision of the instrument?0.01 m0.1 m10 m1 m60s
- Q4What is the precision of the measured value 16 mL?0.01 mL1 mL10 mL0.1 mL30s
- Q5What is the length of G. atlanticus?14.152 cm2.15 cm14.15 cm2.152 cm60s
- Q6Which is TRUE about a fundamental quantity?It is formed by combining two or more base quantities.Its examples include volume and speed.It is a combination of two or more derived quantities.It is independent of other units and cannot be expressed in terms of other units.30s
- Q7Which is NOT a rule in identifying the significant figures in a measurement?Leading zeros are significant.Non-zero digits are significant.Trailing zeros to the right of the decimal point are significant.Zeros between two non-zero digits are significant.30s
- Q8Which is the CORRECT expression of 9.039 0×10⁻³ mg in standard notation?0.009 0390 mg9 039 mg0.093 90 mg9 039.0 mg60s
- Q9Which are the symbols for the metric prefixes deca- and deci-, respectively, according to SI?Da and dda and DD and dda and d30s
- Q10How many grams are there in 1 hg?1 000 g100 g10 g10 000 g30s
- Q11Which is TRUE about the doubtful figure?It is the basis for obtaining exact measurements.Its place value determines the precision of the instrument used.It is the last significant figure in a measurement.It can never be zero.45s
- Q12Which are fundamental quantities?acceleration, temperature, velocitytime, length, temperaturemass, length, forcetime, mass, speed30s
- Q13Which defines derived quantities?They include time, mass, length and temperature as examples.They cannot be expressed in terms of other quantities.They are combinations of one or more base quantities.They are independent of other physical quantities.45s
- Q14What is the precision?1 °C10 °C0.01 °C0.1 °C30s
- Q15What is the precision of the instrument used to obtain 1 700 mg?100 mg10 mg1 000 mg1 mg30s
- Q16Suppose that the instrument used to obtain the mass of a Mandarin duck is precise up to 0.01 g. Which is an APPROPRIATE measurement reading?430.2 000 g430.2 g430.200 g430.20 g45s
- Q17Which is the SI base unit for mass?gkgcgdg30s
- Q18Which measured value is LEAST precise?25 dL2.11 dL5.1 dL82.010 dL45s
- Q19What is 2 590.3 kg rounded to two significant figures?2 600.0 kg2 600 kg2 500 kg26 kg45s
