Free Printable Sci. & Eng. Notation and SI Prefixes

1.

Express 3,510,000 in scientific notation:

a)

$3.51\times10^6$

b)

$3.51\times10^{-6}$

c)

$3.51\times10^4$

d)

$3.51\times10^{-4}$

e)

$351\times10^4$

2.

The average distance in kilometers between the Sun and Earth is 150,000,000 kilometers. How is this number expressed in scientific notation?

a)

$1.5\times10^8\ km$

b)

$15\times10^8km$

c)

$15\times10^7\ km$

d)

$1.5\times10^7\ km$

e)

$150\times10^6\ km$

3.

Express 0.00092 in scientific notation:

a)

$9.2\times10^{-3}$

b)

$9.2\times10^{-4}$

c)

$92\times10^{-5}$

d)

$0.92\times10^{-3}$

e)

$92\times10^{-3}$

4.

Express 0.000050 in scientific notation:

a)

$0.5\times10^{-4}$

b)

$50\times10^{-6}$

c)

$5.0\times10^{-5}$

d)

$5.0\times10^{-4}$

e)

$50\times10^{-4}$

5.

Express $8.7\times10^{-2}$ in standard form:

a)

8700

b)

0.87

c)

0.087

d)

0.0087

6.

Express $5.82\times10^2$ in standard form:

a)

58,200

b)

582

c)

0.00582

d)

0.0582

7.

Express $3.25\times10^5$ in standard form:

a)

0.00325

b)

32,500,000

c)

325,000

d)

0.0000325

e)

0.00000325

8.

Express 0.00092 in engineering notation:

a)

$0.92\times10^{-3}$

b)

$9.2\times10^{-5}$

c)

$920\times10^{-6}$

d)

$920\times10^6$

e)

$9.2\times10^{-3}$

9.

Express 30,500,000 in engineering notation:

a)

$30.5\times10^{-6}$

b)

$30.5\times10^6$

c)

$30.5\times10^4$

d)

$30.5\times10^{-4}$

e)

$3.05\times10^7$

10.

Express 0.000635 in engineering notation:

a)

$635\times10^{-6}$

b)

$635\times10^{-4}$

c)

$0.635\times10^{-3}$

d)

$63.5\times10^{-5}$

e)

$635\times10^{-3}$

11.

Express 934,000,000 in engineering notation:

a)

$9.34\times10^8$

b)

$9.34\times10^6$

c)

$934\times10^6$

d)

$934\times10^{-6}$

e)

$9.34\times10^{-8}$

12.

Express 235 km in pure meters:

a)

235,000 m

b)

235 m

c)

2,350 m

d)

23,500 m

e)

0.235 m

13.

Express 1,210,000,000 Watts with a proper SI Prefix:

a)

$1.21\ MW$

b)

$1.21\ pW$

c)

$1.21\ kW$

d)

$1.21\ GW$

e)

$121\ MW$

14.

A lightning strike has 12,000 A. Express this number with a proper SI prefix:

a)

12 mA

b)

12 MA

c)

12 kA

d)

12 pA

e)

12 cA

15.

The distance from Reunion Tower in downtown to Dealey International School is 20,278 meters. Using a proper SI prefix, this number can be expressed as:

a)

20.278 m

b)

20.278 km

c)

20.278 mm

d)

20,278 km

e)

0.020278 Mm

16.

Express 0.0000523 Watts with a proper SI prefix:

a)

$52.3\ W$

b)

$52.3\ \mu W$

c)

$52.3\ mW$

d)

$52,300\ pW$

e)

$0.0523\ mW$

17.

When we speak of nanotechnology, we are speaking of circuits that are around the size of:

a)

$10^6\ m$

b)

$1\ m$

c)

$0.001\ m$

d)

$10^{-6}\ m$

e)

$10^{-9}\ m$

18.

The energy used by a refrigerator per day is 1.4 kW*hrs. In other words:

a)

1.4 W*hrs

b)

1.400 W*hrs

c)

1,400 W*hrs

d)

0.0014 W*hrs

e)

14,000 W*hrs

19.

A human hair has the thickness of 20 micrometers.

This is also known as 20 microns or $20\ \mu m$ . Which is:

a)

0.02 m

b)

0.002 m

c)

0.0000020 m

d)

0.00002 m

e)

0.00000020

20.

The number 0.35 A can be expressed as:

(Select all that apply)

a)

$3.5\times10^{-1}\ A$

b)

$35\ cA$

c)

$350\times10^{-3}\ A$

d)

$350\ mA$

Sci. & Eng. Notation and SI Prefixes

Total questions: 20

Worksheet time: 20mins

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