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SI BASE UNITS & PREFIXES, SCIENTIFIC NOTATION DIMENSIONAL ANALYS

Total questions: 70

Worksheet time: 1hrs 10mins

Name
Class
Date
1.

What is the SI base unit for length?

a)

kilogram (kg)

b)

meter (m)

c)

second (s)

d)

ampere (A)

2.

Which of the following is the SI base unit for mass?

a)

mole (mol)

b)

candela (cd)

c)

kilogram (kg)

d)

Kelvin (K)

3.

What is the unit symbol for time in the SI base units?

a)

s

b)

m

c)

A

d)

K

4.

The SI base unit for electric current is:

a)

Kelvin (K)

b)

ampere (A)

c)

mole (mol)

d)

candela (cd)

5.

Which quantity is measured in Kelvin (K) in the SI base units?

a)

Length

b)

Mass

c)

Temperature

d)

Light intensity

6.

What is the SI base unit for substance amount?

a)

mole (mol)

b)

candela (cd)

c)

kilogram (kg)

d)

meter (m)

7.

Which of the following quantities is measured in candela (cd) in the SI base units?

a)

Time

b)

Light intensity

c)

Electric current

d)

Substance amount

8.

What is the unit symbol for temperature in the SI base units?

a)

K

b)

m

c)

s

d)

A

9.

Which of the following quantities is measured in meters (m) in the SI base units?

a)

Mass

b)

Length

c)

Time

d)

Electric current

10.

What is the SI base unit for mass?

a)

gram (g)

b)

kilogram (kg)

c)

tonne (t)

d)

milligram (mg)

11.

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

12.

Scientific Notation is made up of two number parts. The second part is a power of base 10.

a)

True

b)

False

13.

When writing a number in scientific notation, the first number must be greater than 1, but less than 10.

a)

False

b)

True

14.

Scientific Notation is made up of two number parts. The first part should be a number between 1 and 100.

a)

True

b)

False

15.

The rule of scientific notation is to write all exponents with a base of ____.

a)

50

b)

5

c)

100

d)

10

16.

UNDERSTANDING
If the exponent is a positive number...

a)

you will get a large number

b)

you will get a smaller number

17.

UNDERSTANDING
If the exponent is a negative number...

a)

you will get a large number

b)

you will get a small number

18.

ANY number raised to a power of 0 will be....

a)

10

b)

itself

c)

1

d)

0

19.

What is it called when you go from this form to this next form?
0.0088 to 8.8 x 103

a)

Standard form to scientific notation

b)

Scientific notation to regular form

c)

Scientific notation to standard form

d)

Standard form to regular form

20.

When your exponent is negative, you move your decimal....

a)

to the right

b)

to the left

c)

to both sides

d)

nowhere.... the decimal goes nowhere

21.

Write in standard form: 
8 x 104

a)

8,000

b)

80,000

c)

.00008

22.

How would you write 4.3756 x 10in standard form?

a)

437,560,000

b)

0.00043756

c)

43,756

d)

4,3756

23.

Which number is correctly written in scientific notation?

a)

5.67 x 105

b)

56.7 x 103

c)

0.567 x 106

24.

Write in scientific notation: 
0.0000378 

a)

3.78 x 10-5

b)

3.78 x 10-6

c)

0.378 x 10-5

25.

Which of the following is correct scientific notation?

a)

20.35 x 104

b)

.2035 x 104

c)

2035 4

d)

2.035 x104

26.

What is the standard form?
1.245 x 103

a)

0.001245

b)

12.45

c)

1245

27.

How would you write 4.3756 x 10in standard form?

a)

437,560,000

b)

0.00043756

c)

43,756

28.

How do you write
8.317 x 106
in standard form?

a)

8, 371, 000

b)

83, 170, 000

c)

837, 100

d)

8, 317, 000

29.

Convert to scientific notation:
520,000,000  

a)

52 x 107

b)

5.2 x 107

c)

5.2 x 108

d)

0.52 x 109

30.

The rule of scientific notation is to write all exponents with a base of ____.

a)

50

b)

5

c)

100

d)

10

31.

Which SI unit is used to measure time?

a)

K

b)

s

c)

mol

d)

N

32.

Which SI unit is used to measure mass?

a)

s

b)

m

c)

kg

d)

Pa

33.

Which SI unit is used to measure length?

a)

mol

b)

m

c)

kg

d)

m2

34.

What is the symbol for the prefix kilo-?

a)

L

b)

m

c)

k

d)

kg

35.

What number is the metric system based?

a)

10

b)

20

c)

1

d)

100

36.

The Equation symbol for mass is?

a)

m

b)

s

c)

I

d)

t

37.

The abbreviation for kilogram is...

a)

kg

b)

gg

c)

g

d)

Kg

38.

Which unit is the smallest?  

a)

km

b)

mm

c)

m

d)

cm 

39.

Which SI unit is used to measure current?

a)

mol

b)

K

c)

cd

d)

A

40.

Which SI unit is used to measure temperature?

a)

m

b)

K

c)

s

d)

A

41.

Which SI unit is used to measure luminous intensity?

a)

cd

b)

K

c)

mol

d)

s

42.

Which SI unit is used to measure amount of substance?

a)

m

b)

K

c)

mol

d)

A

43.

Which unit is the largest?  

a)

km

b)

mm

c)

m

d)

cm 

44.

What is the multiplying factor for the prefix centi-?

a)

10

b)

0.01

c)

0.1

d)

100

45.

What is the multiplying factor for the prefix kilo-?

a)

1

b)

0.000001

c)

1000

d)

10

46.

What is the multiplying factor for the prefix mega-?

a)

1,000,000

b)

0.000001

c)

100

d)

0.01

47.

What is the symbol for the prefix hecto-?

(a)  

48.

What is the symbol for the prefix nano-?

(a)  

49.

What is the symbol for the prefix deca?

(a)  

50.

What is the symbol for the prefix deci-?

(a)  

51.

The Olympic record for the high jump is just over 2.6 yards. What is that distance in feet? (3 ft = 1 yd)

a)

0.867 ft

b)

7.8 ft

c)

8.07 ft

d)

8.27 ft

52.

Americans drink 5,604,000 gallons of sweet tea each day. How many liters is that? (1 gal = 3.79 L)

a)

21,200,000 L

b)

21,240,000 L

c)

21,207,190.2 L

d)

21,000,000 L

53.

You know 1000 mg = 1 g. Convert 2.5 grams into milligrams. (Hint: You can Bunny Hop this one!)

a)

25 mg

b)

25,000 mg

c)

250 mg

d)

2500 mg

54.

The waiting time to ride a roller coaster is 20 minutes when 150 people are in line. How long is the waiting time when 240 people are in line?

a)

32 people

b)

32 minutes

c)

12.5 minutes

d)

12.5 people

55.

How many kilograms of calcium are there in 173 pounds of calcium? (1 lb = 454 g; 1 kg = 1000 g)

a)

1.10 kg

b)

78.5 kg

c)

110 kg

d)

78500 kg

56.

How many minutes are in a school year, 187 days?

a)

269,280 min.

b)

16, 200 min.

c)

16, 156 min.

d)

269,000 min.

57.

Convert 62 miles/hour to feet/second. (5,280 ft = 1 mi)

a)

5,456 ft/s

b)

.003 ft/s

c)

91 ft/s

d)

909 ft/s

58.
Gas costs $3.05 a gallon, and your car travels at 27 miles for each gallon of gas. How far can you travel in your car with $95 in your pocket?
a)
11 miles
b)
840 miles
c)
7800 miles
d)
870 miles
59.

A child weighs 40.0 lb and is to receive 0.10 mg of an antibiotic for each kg of body weight. How many milligrams of the antibiotic shall the child receive? (1 kg = 2.2 lbs)

a)

18.2 mg

b)

182 mg

c)

0.182 mg

d)

1.82 mg

60.
You know that 12 inches = 1 foot.  Convert 60 inches to feet.
a)
720 feet
b)
5 feet
c)
5 inches
d)
72 feet
61.
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
62.

How many inches are in 1 mile? (5280ft = 1mi; 12in = 1ft)

a)

66330in

b)

63360in

c)

63660in

d)

63066in

63.
A 12-ounce bottle of shampoo lasts Enrique 16 weeks. How long would you expect an 18-ounce bottle of the same brand to last him?
a)
24 Weeks
b)
24-ounce bottle
c)
10.6 Weeks
d)
10.6-ounce bottle
64.
A grading machine can grade 48 multiple-choice tests in 1 minute. How long will it take the machine to grade 300 tests?
a)
6.25 Min
b)
0.16 Tests
c)
6.25 Tests
d)
0.16 Min
65.

Convert 20 tons/year to ounces/day

a)

.0004 ounces/day

b)

6.8 ounces/day

c)

109.6 ounces/day

d)

1,753.42 ounces/day

66.

Convert 700 centiliters/day to Liters/year

a)

2,555 Liters/year

b)

255.5 Liters/year

c)

25.55 Liters/year

d)

2.555 Liters/year

67.

Convert 2,500 gallons/year to cups/day

a)

109.6 cups/day

b)

54.8 cups/day

c)

27.4 cups/day

d)

.43 cups/day

68.

A bicycle has a speed of 6.00 m/s. What is its speed in km/h?

a)

21.6 km/h

b)

16.67 km/h

c)

2.16 km/h

d)

1.67 km/h

69.

How many gallons are in a pool that holds 758,000 Liters?

(1 gallon = 3.79 Liters)

a)

2.00 x 105 gallons

b)

200,000. gallons

c)

200,000 gallons

d)

2 gallons

70.

Three ounces of cinnamon cost $2.40. If there are 16 ounces in 1 pound, how much does cinnamon cost per pound? Ignore significant figures

a)

$12.80

b)

$21.20

c)

$38.40

d)

$45.20