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Significant Figures

Total questions: 12

Worksheet time: 10mins

Name
Class
Date
1.

Round 19,476 to 3 significant figures.

a)

19,000

b)

19,400

c)

19,500

d)

19,480

2.

Round 15.3481 to 3 significant figures.

a)

15.3

b)

15.4

c)

15.348

d)

15.349

3.

Round 0.03851 to 2 significant figures.

a)

0.0

b)

0.03

c)

0.038

d)

0.039

4.

Round -179.9426 to 3 significant figures.

a)

-179

b)

-180

c)

-179.942

d)

-179.943

5.

Round 1.0283 to 2 significant figures.

a)

1

b)

1.0

c)

1.02

d)

1.03

6.

Round 29,051 to 2 significant figures.

(a)  

7.

Round 17.8932 to 3 significant figures.

(a)  

8.

Round 0.00215 to 1 significant figure.

(a)  

9.

Round -42.739 to 3 significant figures.

(a)  

10.

Round 17.044 to 3 significant figures.

(a)  

11.

A questions says "Calculate the voltage when 125 mA of current flows through a 10.0 Ω resistor."


How many significant figures should the answer be rounded to?

a)

1

b)

2

c)

3

d)

4

12.

A questions says "Calculate the power supplied by a motor than transfers 240 J in 5.0 s."


How many significant figures should the answer be rounded to?

a)

1

b)

2

c)

3

d)

4