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Dimensional Analysis and Scientific Notation

Total questions: 30

Worksheet time: 30mins

Name
Class
Date
1.

The SI base unit for mass

a)

kilogram

b)

meter

c)

second

d)

liter

2.
A ratio of equivalent values used to express the same quantity in different units; is always equal to 1 and changes the units of a quantity without changing its value
a)
conversion factor
b)
percent error
c)
dimensional analysis
d)
scientific notation
3.
A systematic approach to problem solving that uses conversion factors to move from one unit to another
a)
dimensional analysis
b)
conversion factor
c)
scientific notation
d)
percent error
4.

Expresses any number as a number between 1 and 10 (known as a coefficient) multiplied by 10 raised to a power (known as an exponent). Makes it easier to write large or small quantities.

a)

metric system

b)

scientific notation

c)

standard notation

d)

dimensional analysis

5.

the study of matter and the changes that it undergoes

a)

Chemistry

b)

mass

c)

model

d)

weight

6.
You know 1000 mg = 1 g.  Convert 2.5 grams into milligrams.
a)
25 mg
b)
25,000 mg
c)
250 mg
d)
2500 mg
7.

Convert 3.5 gallons into cups. (1gal = 16cups)

a)

56 cups

b)

0.21875 cups

c)

19.5 cups

d)

48 cups

8.
What is scientific notation?
a)
A long way to write really short  numbers
b)
A short way to write really long numbers
c)
I don't know...
d)
None of the above
9.
UNDERSTANDING
If the exponent is a negative number...
a)
you will get a large number
b)
you will get a small number
10.
UNDERSTANDING
If the exponent is a positive number...
a)
you will get a large number
b)
you will get a smaller number
11.
How would you write 4.3756 x 104 in standard form?
a)
437,560,000
b)
0.00043756
c)
43,756
d)
4,3756
12.

How would you write 0.0005 in scientific notation?

a)

50 x 105

b)

5 x 10-4

c)

5 x 103

d)

.5 x 103

13.

Write 7 in scientific notation.

a)

7 x 100

b)

7 x 101

c)

7 x 102

d)

7 x 103

14.
Write the answer in scientific notation.
5 x 108 -   3.4 x 108  =
a)
2.4 x 108
b)
2.4 x 100
c)
1.6 x 100
d)
1.6 x 108
15.

The diameter of a carbon atom is 0.000 000 000 154 m. What is this number expressed in scientific notation?

a)

1.54 x 1012 m

b)

1.54 x 10-12 m

c)

1.54 x 1010 m

d)

1.54 x 10-10 m

16.

What is SI base for Time

a)

Seconds

b)

Minutes

c)

Hours

d)

milliseconds

17.

What is the SI base unit for Length

a)

Meter

b)

Miles

c)

Feet

d)

kilometer

18.

1 m

a)

100 cm

b)

1000 cm

c)

10 cm

d)

0.1 cm

19.

1 liter

a)

100 ml

b)

1000 ml

c)

10 ml

d)

0.1 ml

20.

1 kg

a)

100 g

b)

1000 g

c)

10 g

d)

0.1 g

21.

what does mega equal

a)

million

b)

tenth

c)

thousand

d)

hundredth

e)

thousandth

22.

what does kilo equal

a)

million

b)

tenth

c)

thousand

d)

hundredth

e)

thousandth

23.

what does deci equal

a)

millionth

b)

tenth

c)

billionth

d)

hundredth

e)

thousandth

24.

what does milli equal

a)

millionth

b)

tenth

c)

billionth

d)

hundredth

e)

thousandth

25.

Mr. Jolly drove 90 km per hour on South Luzon Blvd. this morning. How many meters per second is this rounded to the nearest tenth of a second?

a)

125

b)

30

c)

25

d)

800

26.

The Orlando metro area has approximately 1.964 million people. Each person has 2 hands and each hand has 5 fingers. How many fingers are in the Orlando metro area? Answer in scientific notation.

a)

1.964 x 1011 fingers

b)

1.964 million fingers

c)

1.964 x 106 fingers

d)

1.964 x 107 fingers

27.

Every year, 8 million metric tons of plastics enter our ocean on top of the plastic that already circulate our marine environments. How many pounds of plastic is that each day? (1 metric ton = 2204 pounds)

a)

6.4 x 1012 pounds/day

b)

1.3 x 106 pounds/day

c)

4.8 x 107 pounds/day

d)

3.6 x 10-6 pounds/day

28.
What unit is the largest unit
a)
hm
b)
cg
c)
g
d)
dm
29.
If you are converting from cm to m, how many places and in what direction do you have to move the decimal?
a)
3 right
b)
3 left
c)
2 right
d)
2 left
30.

Melsha travels at a rate of 50 miles per hour. Zariah is traveling 3 feet per second less than Melsha. What is the speed at which Zariah is traveling?

1 mile = 5,280 feet

a)

42 miles per hour

b)

44 miles per hour

c)

46 miles per hour

d)

48 miles per hour

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