Question 1

Which of the following statements about significant figures is TRUE?

Accepted Answer

Zeros between nonzero digits are always significant.

Question 2

How many significant figures are in the measurement 0.00560?

Accepted Answer

3

Question 3

Which of the following numbers has exactly four significant figures?

Accepted Answer

2.305

Question 4

When multiplying 2.34 (3 sig figs) by 0.056 (2 sig figs), how many significant figures should the final answer have?

Accepted Answer

2

Question 5

Which of the following is an example of an exact number?

Accepted Answer

2.54 cm per inch

Question 6

A student adds 143.29 and 20.1. What is the correct answer, rounded to the proper number of decimal places?

Accepted Answer

163.4

Question 7

Which of the following best describes the difference between accuracy and precision?

Accepted Answer

Accuracy is how close measurements are to the true value; precision is how close measurements are to each other.

Question 8

Which of the following is the correct way to express 4500 in scientific notation with two significant figures?

Accepted Answer

$4.5 	imes 10^3$

Question 9

When performing the calculation $101.70 + 0.252$, what is the correct answer rounded to the proper number of decimal places?

Question 10

Which of the following is NOT a base SI unit?

Accepted Answer

Gram

Question 11

A measurement is recorded as 320.0 g. How many significant figures does this value have?

Accepted Answer

4

Question 12

Which of the following is an example of a physical change?

Accepted Answer

Melting ice

Question 13

What is the correct answer for $11.57 \div 365.95$, rounded to the proper number of significant figures?

Accepted Answer

0.0316

Question 14

Which of the following statements about scientific notation is TRUE?

Accepted Answer

The argument/coefficient must be between 1 and 10.

Question 15

Which of the following is an example of an extensive property?

Accepted Answer

Mass

Question 16

Convert 1.00 m to centimeters (cm).

Accepted Answer

100 cm

Question 17

Which of the following is the correct number of significant figures in $5.60 	imes 10^3$?

Accepted Answer

3

Question 18

Which step comes first in the scientific approach?

Accepted Answer

Observation/Experiment

Question 19

A student multiplies $2.54 	ext{ cm/inch} 	imes 5.6 	ext{ inch}$. How many significant figures should the answer have?

Accepted Answer

2

Question 20

Which of the following is a derived SI unit?

Accepted Answer

Cubic meter ($m^3$)

Matter, Measurement, and Problem Solving: Significant Figures, Scientific Approach, and Units

Study Guide - Practice Questions