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Unit 1 Quiz Review

Total questions: 55

Worksheet time: 41mins

Name
Class
Date
1.

How many significant figures?

7945

a)

1

b)

2

c)

3

d)

4

2.

How many significant figures?

0.150

a)

1

b)

2

c)

3

d)

4

3.

How many significant figures?

76400.0

a)

3

b)

4

c)

5

d)

6

4.

How many significant figures?

76490

a)

3

b)

4

c)

5

d)

6

5.

Which one is rounded correctly for the following equation?

1.987 - 0.48 = ?

a)

1.5

b)

1.51

c)

1.507

d)

2

6.

Which one is rounded to the correct number of significant figures for the following equation?

7520 x 0.021 = 157.92

a)

157.92

b)

157.9

c)

158

d)

160

7.

Which answer is rounded to the correct place for the equation below?

457.1 + 459.32 = 916.42

a)

916.42

b)

916.4

c)

916.0

d)

916

8.

Which answer is rounded to the correct place for the equation below?

487.0 / .0024 = 121750.0

a)

121750.0

b)

121800

c)

122000

d)

120000

9.
a)

stopper

b)

forceps

c)

tripod stand

d)

test tube holder

10.
a)

funnel

b)

test tube

c)

balance

d)

forceps

11.
a)

evaporating dish

b)

watch glass

c)

mortar and pestle

d)

funnel

12.
a)

evaporation

b)

watch glass

c)

mortar and pestle

d)

funnel

13.
a)
beaker
b)
flask
c)
graduated cylinder
d)
test tube
14.
a)

crucible tongs

b)

beaker tongs

c)

forceps

d)

tweezers

15.
a)
hot plate
b)
flame thrower
c)
heater
d)
bunsen burner
16.
a)
buret
b)
erlenmeyer flask
c)
graduated cylinder
d)
beaker
17.
a)
test tube rack
b)
test tube holder
c)
wire holder
d)
utility clamp
18.
a)
glass lens
b)
watch glass
c)
evaporating dish
d)
pestle
19.
a)
wire mesh
b)
wire gauze
c)
wire fence
d)
hot mitt
20.
a)
test tube holder
b)
test tube rack
c)
test tube tray
d)
test tube dryer
21.
Identify the equipment shown here:
a)
beaker
b)
Erlenmeyer flask
c)
Florence flask
d)
volumetric flask
22.

Identify the lab equipment in the picture.

a)

Test Tube Rack

b)

Test Tube Clamp with Spring

c)

Crucible Tongs

d)

Forceps

23.

40 cm = ______ mm

a)

4000

b)

40

c)

400

d)

None of the Above

24.

1 L = _______ mL

a)

1

b)

10

c)

100

d)

1000

25.
The base unit of metric length.
a)
Meter
b)
Liter 
c)
Kilogram
d)
milligram
26.
The base for mass is the
a)
meter
b)
gram
c)
kilogram
d)
liter
27.
The abbreviation for gram is...
a)
G
b)
gg
c)
g
d)
gr
28.
1000 m = ___________ km
a)
100
b)
10
c)
1
d)
0.1
29.
0.57 mL = ___________ L
a)
5.7
b)
0.057
c)
0.0057
d)
0.00057
30.
32.9 km = ___________ cm
a)
32,900
b)
329,000
c)
3,290,000
d)
32,900,000
31.
Which unit is a a measure of volume?
a)
meters
b)
grams
c)
inches
d)
liters
32.

What unit does mm stand for?

a)

milli

b)

milliliter

c)

meter

d)

millimeter

33.

9 mg = (a)   g

34.

How close a measurement or a set of data is to the true value is called..

a)

Accuracy

b)

Precision

c)

Significant

d)

Estimate

35.

Which Student is the most Precise?

a)

Student A

b)

Student B

c)

Student C

36.
A set of data are all close to each other, but they are not close to the actual value.  This set of data can be described as...
a)
accurate
b)
precise
c)
both precise and accurate
37.
A set of data are all close to each other, and they are close to the actual value.  This set of data can be described as...
a)
accurate
b)
precise
c)
both precise and accurate
38.

When judging the accuracy of a set of data, the ____________ must be compare with _________________

a)

average of the data, true value

b)

data points, true value

c)

average of the data, each data point

d)

data points, each other

39.

When judging the precision of a set of data, the ____________ must be compare with _________________

a)

average of the data, true value

b)

data points, true value

c)

average of the data, each data point

d)

data points, each other

40.

Which Student is the most Accurate?

a)

Student A

b)

Student B

c)

Student C

41.

If the actual density of zinc is 7.134g/mL, whose data was the most accurate?

a)

John's

b)

Sam's

c)

Sara's

d)

Table's

e)

Density

42.

If the actual density of zinc is 7.134g/mL, whose data was the most precise?

a)

John's

b)

Sam's

c)

Sara's

d)

Table's

e)

Density

43.

Convert this number into scientific notation: 950,000

a)

9.5 x 105

b)

9.5 x 10-9

c)

9.5 x 102

d)

None of the above

44.
Write 6,700 in scientific notation.
a)
6.7 x 103
b)
6.7 x10-3
c)
67 x 102
d)
67 x 10-2
45.

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

46.
Express the following in scientific notation:
.000457
a)
457 x 106
b)
457 x 10-6
c)
4.57 x104
d)
4.57 x 10-4
47.

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

48.

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

49.

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

50.

If a glass breaks during a lab, what is the first thing you do?

a)

Try to pick it up yourself.

b)

Leave it there without telling your teacher.

c)

Try to sweep it under the table.

d)

Tell the teacher.

51.

( Fill in the blank) Long hair should be ____________ in the laboratory.

a)

tied back

b)

cut

c)

down

d)

curled

52.
After completing an experiment, all chemical wastes should be
a)
dumped down sink
b)
taken home
c)
thrown in trash
d)
disposed of according to teacher's directions
53.
You are heating a substance in a test tube. Always point the open end of the tube
a)
towards your body
b)
toward your lab partner
c)
towards another classmate
d)
away from all people
54.
The proper technique for smelling chemicals is ______________
a)
keeping your nose close to the glassware
b)
wafting
c)
to sniff only a small amount
d)
Trick question; you never are allowed to smell chemicals in class
55.

Approved eye protection devices (such as goggles) are worn in the laboratory

a)

to avoid eye strain

b)

to improve your vision

c)

so that you look super cool

d)

any time chemicals, heat or glassware are used

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