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WorksheetsUnit 1 Test Review Chemistry
Total questions: 60
Worksheet time: 53mins
Round 0.010229 to four significant figures
1022
1023
0.01023
0.01022
How many Significant Figures to the number below:
0.00001020
(a)
Multiply (7.63 × 104) × (8.45×108) **Round your Answer to Two Decimal Places**
(a)
Calculate 12.34 + 1.234 + 0.1234 and give your answer with the correct number of significant figures.
13.6974
13.697
13.70
13.7
How many significant figures are in 927.0020?
4
3
6
7
How many significant figures does the following number have: 1740200?
2
1
3
5
How many significant figures are in 730?
1
2
3
4
How many significant figures are in 0.0045670?
8
4
5
7
Write 2.08 x 102 in standard form.
208
0.0208
20,800
0.208
What is the answer, expressed with the correct significant digits, for: 3.4 cm x 2.32 cm?
7.888 cm2
7.89 cm2
7.9 cm2
8 cm2
Convert 500,000 mL into scientific notation.
5.0 x 10^6
50 x 10^5
5.0 x 10^5
500 L
8.60x102 cm = ? m
(a)
Convert 78 Liters to Centiliters
(a)
Convert 5 L to ____ mL.
5000 mL
500 mL
0.005 mL
Cannot be determined
Convert 3.45 kg to mg
(a)
How would you find the mass of an object?
Measure its dimensions with a ruler, and then multiply length, width, and height
Use water displacement
Use a balance or scale
Use a timer
What is the formula for density?
Density = Mass x Volume
Density = Mass / Volume
Density = Mass + Volume
Density = Mass - Volume
Jack has a rock. The rock has a mass of 14 g and a volume of 2 cm3. What is the density of the rock?
7 mL
7 g/cm3
28 g/cm3
1/7 g/cm3
"My sponge creature is yellow, light, and has a cylindrical shape. What type of observation is this?"
Subjective observation
Qualitative observation
Quantitative observation
Objective observation
What would be the independent variable in an experiment testing which type of paper airplane goes the furthest?
The paper used
The type of paper airplane
The distance of each plane's flight
How hard the plane is thrown
What is an independent variable?
The variable that is changed.
The variable that is being measured.
The variables that are kept the same.
The two or more variables that are changed.
What is a dependent variable?
The variable that is changed.
The variable that is measured.
The variable that is kept the same.
The two or more variables that are changed.
What is the independent variable in this research question: "How does the type of gasoline affect the car speed?"
Type of gasoline
The car into which the gas is put
The speed at which the car can drive
The amount of gas put into the car
What is the dependent variable in this research question: "How does the distance a person kicks a soccer ball affect their performance on a math test?"
The distance they kick the soccer ball
The identity of the person
Their performance on the math test
The type of soccer ball
Which of the following is a laboratory equipment?
beaker
graduated cylinder
erlenmeyer flask
test tube
Please select the correct option:
beaker
graduated cylinder
erlenmeyer flask
test tube
Identify the equipment shown here.
Test tube holder
Iron rod
Iron ring
Ring stand
Who is the correct student?
Student A
Student B
Student C
Cannot be determined
A set of data is close in value to each other, but not close to the actual value. This set of data can be described as _________________.
precise
accurate
This bullseye demonstrates...
High Accuracy & High Precision
High Accuracy & Low Precision
Low Accuracy & High Precision
Low Accuracy & Low Precision
This bullseye demonstrates...
High Accuracy & High Precision
High Accuracy & Low Precision
Low Accuracy & High Precision
Low Accuracy & Low Precision
Describe the accuracy and precision of the image.
Very accurate and somewhat precise.
Very accurate but not precise at all.
Not accurate at all but very precise.
Not accurate and not very precise.
What does accuracy mean?
The measurements are close to each other.
The measurement is close to the true value.
The measurements are close to each other.
The measurements are close to each other and the true value.
Which student is the most accurate?
A
B
C
The students measured length during a science experiment. They got 12.00 cm, but the actual measurement was 14.25 cm. What was the percent error?
15.79%
18.75%
2.25%
18%
The diameter of a regulation baseball is 7.5 cm. A randomly measured baseball has a diameter of 7.1 cm. Find the percent error.
5.3%
2.6%
5.6%
4.8%
Ms. S set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. What is the dependent variable?
Distance traveled by the ball
Height of the ramp
Mass of the ball
Where the experiment took place
8.8 cm = ? mm
(a)
Convert 60 inches to feet.
720 feet
5 feet
5 inches
72 feet
The Olympic record for the high jump is just over 2.6 yards. What is that distance in feet?
0.867 ft
7.8 ft
8.07 ft
8.27 ft
Used to transfer a small amount of liquid
Graduated cylinder
Test tube
Scoopula
Pipette
What is used to find the mass of an object?
Meter stick
Digital scale
Petri dish
Triple beam balance
What is this piece of lab equipment called?
Wash bottle
Stir rod
Dropper
Funnel
Test tube
Name the object.
Test tube rack
Test tube clamps
Goggles
Petri dish
Ring stand
Identify the lab equipment shown in the image.
scoopula
dropper
crucible tongs
glassware tongs
Identify the lab equipment in the picture.
Bunsen Burner
Striker
Crucible & Cover
Mortar & Pestle
Which of the following choices best represents the length reading from the pictured metric ruler?
0.8 cm
0.80 cm
0.800 cm
8 cm
Which of the following choices best represents the volume reading from the pictured graduated cylinder?
61 mL
61.5 mL
67 mL
67.0 mL
A scientist fills a beaker to 300 mL. The scientist then drops an irregular-shaped object into the beaker. The water level rises to 400 mL. What is the volume of the object?
400 mL
700 mL
0.75 mL
100 mL
What is the volume of Object X?
10.0 cm3
15.0 cm3
20.0 cm3
25.0 cm3
What is the volume of the fish?
18.0 cm3
6.0 cm3
38.0 cm3
32.0 mL
What is the unit for mass?
Meters (m)
Milliliters (mL)
Degrees Celsius (C)
Kilogram (kg) / Gram(g)
What is the unit for volume?
Milliliters (mL)
Grams (g)
Meters (m)
Degrees Celsius (C)
The volume of a rectangular object, such as a cube, is measured by...
Length x Width x Height
Water Displacement Method
A suitcase has a length of 0.5 meters, a width of 0.2 meters, and a height of 1 meter. What is the volume (in m^3) of the suitcase?
1 m^3
1.7 m^3
0.3 m^3
0.1 m^3
Find the average of the numbers below:
4, 9, 7, 10, 5
(a)
Find the average of the numbers below:
2, 8, 6, 3, 12, 7, 4
(a)
Calculate the average.
10, 4, 5, 9
(a)
