Question 1

Which is NOT true about a measurement?

Accepted Answer

Its precision increases as the number of significant figures increases.

Answer

It includes all known digits plus one estimated digit.

Answer

It is used to objectively describe biological processes.

Answer

It is a comparison of an unknown quantity with a known standard unit represented through a measuring device.

Question 2

Which physical quantity refers to the amount of matter in an object?

Accepted Answer

mass

Answer

time

Answer

temperature

Answer

length

Question 3

What is the precision of the instrument?

Accepted Answer

0.1  m

Answer

0.01 m

Answer

10 m

Answer

1 m

Question 4

What is the precision of the measured value 16 mL?

Accepted Answer

10 mL

Answer

0.01 mL

Answer

1 mL

Answer

0.1 mL

Question 5

What is the length of G. atlanticus?

Accepted Answer

2.15 cm

Answer

14.152 cm

Answer

14.15 cm

Answer

2.152 cm

Question 6

Which is TRUE about a fundamental quantity?

Accepted Answer

It is independent of other units and cannot be expressed in terms of other units.

Answer

It is formed by combining two or more base quantities.

Answer

Its examples include volume and speed.

Answer

It is a combination of two or more derived quantities.

Question 7

Which is NOT a rule in identifying the significant figures in a measurement?

Accepted Answer

Leading zeros are significant.

Answer

Non-zero digits are significant.

Answer

Trailing zeros to the right of the decimal point are significant.

Answer

Zeros between two non-zero digits are significant.

Question 8

Which is the CORRECT expression of  9.039 0×10⁻³ mg in standard notation?

Accepted Answer

0.009 0390 mg

Answer

9 039 mg

Answer

0.093 90 mg

Answer

9 039.0 mg

Question 9

Which are the symbols for the metric prefixes deca- and deci-, respectively, according to SI?

Accepted Answer

da and d

Answer

Da and d

Answer

da and D

Answer

D and d

Question 10

How many grams are there in 1 hg?

Accepted Answer

100 g

Answer

1 000 g

Answer

10 g

Answer

10 000 g

Question 11

Which is TRUE about the doubtful figure?

Accepted Answer

It is the last significant figure in a measurement.

Answer

It is the basis for obtaining exact measurements.

Answer

Its place value determines the precision of the instrument used.

Answer

It can never be zero.

Question 12

Which are fundamental quantities?

Accepted Answer

time, length, temperature

Answer

acceleration, temperature, velocity

Answer

mass, length, force

Answer

time, mass, speed

Question 13

Which defines derived quantities?

Accepted Answer

They are combinations of one or more base quantities.

Answer

They include time, mass, length and temperature as examples.

Answer

They cannot be expressed in terms of other quantities.

Answer

They are independent of other physical quantities.

Question 14

What is the precision?

Accepted Answer

0.1 °C

Answer

1 °C

Answer

10 °C

Answer

0.01 °C

Question 15

What is the precision of the instrument used to obtain 1 700 mg?

Accepted Answer

1 000 mg

Answer

100 mg

Answer

10 mg

Answer

1 mg

Question 16

Suppose 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?

Accepted Answer

430.200 g

Answer

430.2 000 g

Answer

430.2 g

Answer

430.20 g

Question 17

Which is the SI base unit for mass?

Accepted Answer

kg

Answer

g

Answer

cg

Answer

dg

Question 18

Which measured value is LEAST precise?

Accepted Answer

25 dL

Answer

2.11 dL

Answer

5.1 dL

Answer

82.010 dL

Question 19

What is 2  590.3 kg rounded to two significant figures?

Accepted Answer

2 600 kg

Answer

2 600.0 kg

Answer

2 500 kg

Answer

26 kg

Related quizzes

Related quizzes