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WorksheetsUnit 1: Measurements
Total questions: 20
Worksheet time: 15mins
Name
Class
Date
1.
How many significant digits are there in the following number: 0.00530
a)
2
b)
3
c)
5
d)
6
2.
How many significant digits are there in the following number: 590800
a)
2
b)
3
c)
4
d)
6
3.
If you add 20 ml to 172 ml, how many ml do you have to the correct significant digits?
a)
190
b)
192
c)
200
d)
2.0 x 102
4.
A student poured three samples of solution. In their beaker, they had 22.5 ml, 22.4 ml and 22.8 ml. They needed 26 ml per sample. Were they accurate or precise in their measurements?
a)
Precise
b)
Accurate
c)
Both
d)
Neither
5.
If you needed 25.4 ml of solution, which piece of glassware would you need to use?
a)
100 ml beaker
b)
100 ml graduated cylinder
c)
125 ml flask
d)
50 ml graduated cylinder
6.
How many milliliters are in 2 liters?
a)
0.002
b)
2
c)
200
d)
2000
7.
How many kilograms are in 500,000 milligrams?
a)
0.5
b)
50
c)
500
d)
500,000
8.
An object has a mass of 25 grams and a volume of 50 ml. What is its density?
a)
0.5 g/ml
b)
2 g/ml
c)
5 g/ml
d)
1250 g/ml
9.
An 20 gram sample was placed in a beaker containing water. The volume of the water changed from 22 ml to 26 ml when this occurred. What was the density of the object?
a)
5 g/ml
b)
0.2 g/ml
c)
0.8 g/ml
d)
0.9 g/ml
10.
A graph is fitted with a line of best fit. The data is close to the line and the line slopes up. Which of the following represents the correlation between the data and the line?
a)
R2= 0.02
b)
R2= -0.89
c)
R2= 0.89
d)
R2= -0.02
11.
What is the maximum value this piece of glassware can measure?
a)
1 ml
b)
10 ml
c)
25 ml
d)
50 ml
12.
What is this?
a)
Measuring tube
b)
Test tube
c)
Graduated Cylinder
d)
Pipette
13.
Measure to the nearest milliliter.
a)
73 mL
b)
73.1 mL
c)
76 mL
d)
76.1 mL
14.
How many significant figures: 6.50 x 104
a)
6
b)
3
c)
5
d)
4
15.
Round 12,678.56 to four significant figures.
a)
1,268
b)
12,700
c)
13,000
d)
12,680
16.
A metal has a density of 10.8 g/cm3. What is the volume if the mass is 560 g?
a)
32.6 cm3
b)
2.78 cm3
c)
0.019 cm3
d)
51.9 cm3
17.
A description of how close measurements are to each other is
a)
accuracy
b)
closeness
c)
precision
d)
target location
18.
If an object has a density of 3.6 g/mL and you put it into water, will it sink or float?
a)
sink
b)
float
19.
If this substance takes up 6ml of space, what is its mass?
a)
6 ml
b)
6 grams
c)
0 grams
d)
4 grams
20.
What is the volume of Object X?
a)
10.0 cm3
b)
15.0 cm3
c)
20.0 cm3
d)
25.0 cm3
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