Free Printable 00099

1.

How many significant figures does the following number have: 0.998005

a)

9

b)

10

c)

6

d)

5

2.

How many significant figures does the following number have: 100.00210

a)

7

b)

5

c)

10

d)

8

3.

How many significant figures does the following number have: 2001800.

a)

1

b)

4

c)

6

d)

7

4.

Write the following number in scientific notation.

360

a)

$3.6\times10^2$

b)

$0.36\times10^2$

c)

$3.6\times10^3$

d)

$3.6\times10^{-2}$

5.

What must be true for the number "a" in scientific notation. Select all that apply.

a)

must be less than 10

b)

must be greater than 1

c)

must be greater than or equal to 1

d)

must be less than or equal to 10

e)

must be less than 1

6.

Write the following number in scientific notation.

0.052

a)

$5.2\times10^1$

b)

$5.2\times10^{-1}$

c)

$5.2\times10^{-2}$

d)

$5.2\times10^2$

7.

Write the following number in standard form. Type your answer with no spaces and no commas.

$4.35\times10^5$

(a)

8.

Find the volume of the given figure.

a)

308.9 cm³

b)

308.2 cm³

c)

312.8 cm³

d)

302.9 cm³

9.

The mass of an object is 30 g. The volume is 5 mL. What is the density of this object?

a)

6 g/cm

b)

6 g/mL

c)

6

10.

The density of this material is 2 g/cm³.
There are 24 cm³ Find the total mass.

a)

12 grams

b)

48 grams

c)

12 g/cm³

d)

48 g/cm³

11.

1 km = 1000 m.

1 hour = 60 minutes.

1 minute = 60 seconds.

In order to convert from $\frac{km}{h}$ to $\frac{m}{s}$ , which of the following conversion factors can be used as one step of the conversion?

a)

$\left(\frac{1m}{1000km}\right)$

b)

$\left(\frac{1\ hour}{60\ \min}\right)$

c)

$\left(\frac{60\ s}{1\ \min}\right)$

d)

$\left(\frac{3600\ s}{1\ hour}\right)$

e)

$\left(\frac{1\ hour}{60\ s}\right)$

12.

1 gal = 4qt.

1 qt = 2 pt.

1 pt = 2 cup.

In order to convert from $gal$ to $cup$ , which of the following conversion factors can be used as one step of the conversion?

a)

$\left(\frac{1\ gal}{4\ qt}\right)$

b)

$\left(\frac{2\ qt}{\ 1\ pt}\right)$

c)

$\left(\frac{1\ pt}{2\ cup}\right)$

d)

$\left(\frac{4\ pt}{1\ gal}\right)$

e)

$\left(\frac{2\ cup}{1\ pt}\right)$

13.

True or False:

Organisms are living things

a)

true

b)

false

14.

What is a decomposer?

a)

an organism that breaks down dead organisms for energy

b)

an organism that makes its own food

c)

an organism that eats other organisms

15.

Does a food chain start with the sun?

a)

yes

b)

no

16.

What is a consumer?

a)

an organism that breaks down dead organisms

b)

an organism that makes its own energy and food

c)

an organism that eats other organisms for energy

17.

What is a food web?

a)

a model that contains many food chains

b)

a model that contains one food chain

c)

a model that shows where the sun gets its energy

d)

a model that shows how decomposers break down organisms

18.

What is the source of all energy?

a)

water

b)

food

c)

decomposers

d)

sun

19.

What do organisms need to survive?

a)

to have their needs met

b)

a comfortable home

c)

animals to eat

d)

humans

20.

What do the arrows in a food web show?

a)

who is the most powerful

b)

the next organism that uses the energy

c)

the prey

d)

the sun

21.

In a food chain, what comes after a producer?

a)

the sun

b)

a decomposer

c)

a consumer

22.

Convert: 150 ^oF to ^oC:

a)

65.5 C

b)

65.5 F

c)

338.5 C

d)

338.5 F

23.

Convert: 253 C to K:

a)

526 K

b)

625 K

c)

0 K

d)

186 K

24.

Convert: 186.5 K to C

a)

-86.4 C

b)

-50 C

c)

-68.4 C

d)

180 K

25.

Convert 0°C to Fahrenheit (1.8 x ⁰C) + 32

a)

0°F

b)

1.8°F

c)

32°F

d)

3.2°F

26.

The distance between New York City and Miami, Florida would be measured in __?__.

a)

kilometers (km)

b)

meters (m)

c)

centimeters (cm)

d)

millimeters (mm)

27.

The SI unit for time is the __?__.

a)

meter (m)

b)

liter (L)

c)

gram (g)

d)

second (s)

00099

Total questions: 27

Worksheet time: 31mins

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