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WorksheetsChemistry 2020 Unit 2
Total questions: 80
Worksheet time: 5hrs 52mins
Name
Class
Date
1.
The attendance for the basketball game was estimated to be 15,000 people but 12,500 people attended. What was the percent error?
a)
16.67%
b)
20%
c)
2500%
d)
80%
2.
The students measured length during a science experiment, they got 12 cm. But the actual measurement was 14.25 cm. What was the percent error?
a)
15.79%
b)
18.75%
c)
2.25%
d)
18%
3.
The deer population is estimated to be 17,600 in northern Illinois, but an actual count was 21,300. What is the percent error?
a)
21%
b)
19.37%
c)
17.4%
d)
21.02%
4.
During the school fire drill the actual count of students was between 1380 and 1402. What is the most the absolute error could be?
a)
22
b)
-22
c)
2782
d)
22%
5.
Jessie estimates the weight of her cat to be 8 pounds. The actual weight of the cat was 10 pounds. Find the percent error.
a)
15%
b)
20%
c)
25%
d)
30%
6.
Zed went to the store and bought a bag of chips. He estimated there would be 350 chips in the package, but realized there were only 210 chips in that package. What was his percent error?
a)
35%
b)
67%
c)
85%
d)
92%
7.
The deer population is estimated to be 17,600 in northern Illinois, but an actual count was 21,300. What is the percent error?
a)
21%
b)
17.37%
c)
17.4%
d)
21.02%
8.
The students measured length during a science experiement, they got 12 cm. But the actual measurement was 14.25 cm. What was the percent error?
a)
15.79%
b)
18.75%
c)
2.25%
d)
18%
9.
?
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
10.
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
11.
It is a measure of how close measurements come to each other when they are made in the same way
a)
Accuracy
b)
Precision
c)
Error
d)
Extrapolation
12.
a)
Student A
b)
Student B
c)
Student C
d)
Cannot be determined
13.
How close a measurement is to the accepted value is called..
a)
Accuracy
b)
Precision
c)
Significant
d)
Estimate
14.
This bullseye demonstrates...
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
15.
?
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
16.
The students measured length during a science experiement, they got 12 cm. But the actual measurement was 14.25 cm. What was the percent error?
a)
15.79%
b)
18.75%
c)
2.25%
d)
18%
17.
Describe the accuracy and precision of the image
a)
Accurate and Precise
b)
Accurate and not precise
c)
Not Accurate and Precise
d)
not accurate and not precise
18.
How close a measurement is to the true value is called..
a)
Accuracy
b)
Precision
c)
Significant
d)
Estimate
19.
volume?
a)
48 mL
b)
48.2 mL
c)
48.25 mL
d)
4 mL
20.
Volume?
a)
63.5 mL
b)
63 mL
c)
63.55 mL
d)
6 mL
21.
This image is an example of...
a)
precision ONLY
b)
accuracy ONLY
c)
BOTH precision and accuracy
d)
NEITHER precision and accuracy
22.
Which Student is the most Precise?
a)
Alex
b)
Shandra
c)
Luis
23.
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
24.
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
25.
You estimate that you sent 135 texts last week, but when you get the bill it was actually 108. What was your percent error?
a)
20%
b)
25%
c)
-20%
d)
-25%
26.
You estimate that 200 people attend a school concert. The actual attendance was 240. What is the percent error?
a)
20%
b)
-20%
c)
-16.7%
d)
16.7%
27.
An archaeologist estimated that a fossil was 520 years old. It was actually 500 years old. What was the percent error?
a)
4%
b)
20%
c)
3.8%
d)
none of these
28.
Mr. Nacerino estimates that it will take him 48 minutes to run 8 miles. It actually takes him 60 minutes. What was his percent error?
a)
20%
b)
12%
c)
25%
d)
8%
29.
You know that 12 inches = 1 foot. Convert 60 inches to feet.
a)
720 feet
b)
5 feet
c)
5 inches
d)
72 feet
30.
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
31.
Convert 3.5 gallons into cups. (1gal = 16cups)
a)
56 cups
b)
0.21875 cups
c)
19.5 cups
d)
48 cups
32.
How many gallons are in a pool that holds 758,000 Liters?
(1 gallon = 3.79 Liters)
(1 gallon = 3.79 Liters)
a)
200
b)
20,000
c)
200,000
d)
2,000,000
33.
Convert 40 ounces to pounds. (16oz = 1lb)
a)
2.5 pounds
b)
.4 pounds
c)
2/5 pounds
d)
5 pounds
34.
The length of a desk is 3.5 feet. How many centimeters is the length?
(there are 2.54 cm in an inch)
(there are 2.54 cm in an inch)
a)
60
b)
120.23
c)
106.68
d)
117.12
35.
How many minutes are in a year?
a)
I can't count that high.
b)
525,600min
c)
52,560min
d)
31,536,000min
36.
How many years are in a 3 months?
a)
0.2 yrs
b)
0.75 yrs
c)
0.50 yrs
d)
0.25 yrs
37.
How many kilograms of calcium are there in 173 pounds of calcium? (1 pound = 454 grams; 1 kg = 1000 g)
a)
1.10 kg
b)
78.5 kg
c)
110 kg
d)
78500 kg
38.
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
39.
How many minutes are in a year?
a)
I can't count that high.
b)
525,600min
c)
52,560min
d)
31,536,000min
40.
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
41.
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 Min.
c)
12.5 Min.
d)
12.5 People
42.
What piece of equipment (tool) is used to measure length?
a)
Graduated Cylinder
b)
Meter Stick
c)
Triple-Beam Balance
43.
What piece of equipment (tool) is used to measure mass?
a)
Graduated Cylinder
b)
Meter Stick
c)
Triple-Beam Balance
d)
Beaker
44.
Which piece of equipment is shown in the picture?
a)
Graduated Cylinder
b)
Meter Stick
c)
Triple-Beam Balance
d)
Beaker
45.
Sabrina wants to test which brand of popcorn pops the most kernels. She picked a Giant Eagle brand, Orville Redenbacher, and PopSecret. All three bags started with the same number of kernels. She popped each for 3 minutes in the same microwave, and then counted the number of kernels left over. What is her independent variable?
a)
Number of kernels left over
b)
Brand of popcorn
c)
Number of kernels before popping
d)
Length of time cooking
46.
Kira wants to test which type of soda creates the biggest foam explosion when adding a Mentos candy. She chose Sprite, Coke, and Mountain Dew. One at a time, she added a single Mentos candy and measured the height of the foam eruption. Mountain Dew created a foam eruption of 7 inches. Coke and Sprite tied at 5 inches. What is her dependent variable?
a)
Brand of soda
b)
Number of mentos candies used
c)
Height of foam eruption
d)
Temperature of soda
47.
What is a dependent variable?
a)
the variable that causes the change
b)
the variable that remains the same
c)
the variable that is measured
d)
the manipulated variable
48.
The factor in an experiment that will be changed.
a)
dependent variable
b)
independent variable
c)
controlled variable
d)
responding variable
49.
Josie was performing an experiment where she grew the same kind of tomatoes in the same soil and amount of water. She sat one in the sun and one in a closet for 14 days. What is the independent variable in Josie's experiment?
a)
tomatoes
b)
soil
c)
sunlight
d)
water
50.
The best graph to use if I want to compare the price of six different cars would be a
...
...
a)
Pie graph
b)
Bar graph
c)
Data table
d)
Line graph
51.
The SI unit for time is the __?__.
a)
meter (m)
b)
liter (L)
c)
gram (g)
d)
second (s)
52.
What is the base unit for measuring distance?
a)
liters
b)
meters
c)
grams
d)
seconds
53.
How much does it cost to have your lawn mowed for 2 hours?
a)
$16
b)
$17
c)
$18
d)
$19
54.
Bar graphs are used to best represent what type of data?
a)
Change over Time
b)
Trends over Time
c)
Categories of Information(Comparisons)
d)
Percentages
55.
Volume is measured in
a)
Grams
b)
Liters
c)
Meters
d)
Ounces
56.
Mass is measured in:
a)
Grams
b)
Liters
c)
Meters
d)
Pounds
57.
The lab equipment seen in the image should be worn during a lab investigation when...
a)
using glassware.
b)
using chemicals.
c)
using heat/fire.
d)
using any of the above.
58.
Identify the piece of lab equipment seen in the image.
a)
Erlenmeyer Flask
b)
Graduated Cylinder
c)
Beaker
d)
Test Tube
59.
A thermometer is used to measure temperature in which metric unit?
a)
Fahrenheit (°F)
b)
Celcius (°C)
c)
Kilometers (km)
d)
Liters (L)
60.
Which variable is found on the y-axis?
a)
Independent
b)
Manipulated
c)
Dependent
d)
Input
61.
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
62.
You know 16 cups = 1 gallon. Convert 3.5 gallons into cups.
a)
56 cups
b)
0.21875 cups
c)
19.5 cups
d)
48 cups
63.
You know that 12 inches = 1 foot. Convert 60 inches to feet.
a)
720 feet
b)
5 feet
c)
5 inches
d)
72 feet
64.
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
65.
Convert from meters to cm: 9 meters
a)
900 cm
b)
90 cm
c)
0.9 cm
d)
0.09 cm
66.
Convert 17 m to cm:
a)
0.17 cm
b)
0.017 cm
c)
1,700 cm
d)
170 cm
67.
Convert 300 meters to centimeters:
a)
3000 cm
b)
0.3 cm
c)
30,000 cm
d)
3 cn
68.
1000 grams = _____ kilograms
a)
0.0001
b)
1,000,000
c)
10
d)
1
69.
7,000 g = ____ kg
a)
70
b)
700
c)
7
d)
0.07
70.
490,000 g =____ kg
a)
490
b)
49
c)
4,900
d)
0.49
71.
648 g = ____ mg
a)
6,480
b)
64,800
c)
648,000
d)
64.8
72.
42 L = ___mL
a)
4,200
b)
.0042
c)
4.20
d)
42,000
73.
1 L = _______ mL
a)
1
b)
10
c)
100
d)
1000
74.
Select the largest unit.
a)
kilogram
b)
centigram
c)
decigram
d)
decagram
75.
Select the smallest unit.
a)
milliliter
b)
centiliter
c)
hectoliter
d)
liter
76.
Which of the following options is the base unit?
a)
kilometer
b)
centimeter
c)
meter
d)
millimeter
77.
15.6 L = ___________ mL
a)
15,600
b)
156,000
c)
1,560,000
d)
15,600,000
78.
Based on the markings of this graduated cylinder, what is the estimated volume?
a)
63.5 mL
b)
63 mL
c)
63.55 mL
d)
0.063 L
79.
What is the measurement
(a)
80.
What is the volume of the water?
a)
24 mL
b)
21.5 mL
c)
20.5 mL
d)
22 mL
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