North Carolina Science Grade 7

Chapter 2: Measurement

Measurement

1.
_______ describes how closely individual measurements agree with each other.
A)Quality
B)Accuracy
C)Precision
D)Rounding
2.
An object's ________ depends only on the amount of matter in the object.
A)weight
B)mass
C)volume
D)force
3.
Which of the following units would be most appropriate for measuring the length of a person's finger?
A)kilometers
B)meters
C)centimeters
D)nanometers
4.
_____ compares a measurement to its real, or actual, value.
A)Estimation
B)Precision
C)Accuracy
D)A significant digit
5.
How many grams are in a milligram?
A)0.001
B)1
C)1,000,000
D)0.000001
6.
A jet travels at 1500 km/h for 0.5 hours. The distance it travels can be found by multiplying its speed by the amount of time that it travels at that speed. How many significant digits should be in the answer?
A)1
B)3
C)750
D)2
7.
What is the SI unit of length?
A)kelvin
B)cubic meter
C)meter
D)kilogram
8.
What type of graph is used to show parts of a whole?
A)circle graph
B)table
C)line graph
D)bar graph
9.
Why was the International System of Units established?
A)to facilitate competition among companies from different countries
B)to protect trade secrets
C)to facilitate the sharing of measurement data among people from every country
D)to aid in converting currency from one country's currency to another
10.
A ______ displays information in rows and columns.
A)photograph
B)graph
C)table
D)drawing
11.
A 2-L bottle can hold how many cubic centimeters of liquid?
A)0.002
B)2000
C)1000
D)2
12.
________ is a measurement of force.
A)Weight
B)Volume
C)Temperature
D)Mass
13.
______ can help you make a rough measurement of an object by guessing.
A)Measuring
B)Estimation
C)Events
D)Rounding
14.
In 1999, the world record holder for the men's 100-m dash was Maurice Greene. His record-setting time was 9.79 s. Which portions of this information represent measurements?
A)track and field
B)the year 1999, 100 m, 9.79 s
C)world record
D)Maurice Greene
15.
If you are at sea level, at what temperature does water boil on the Kelvin scale?
A)0 K
B)100 K
C)212 K
D)373 K
16.
A _____ is used to organize and summarize data in a visual way.
A)table
B)photograph
C)graph
D)drawing
17.
Maurice Greene's record-setting time in the 100-m dash was 9.79. What was his time rounded to the nearest second?
A)10 s
B)9.8 s
C)9 s
D)9.7 s
18.
A good way to illustrate the flow of electricity through a wire is with a __________.
A)line graph
B)circle graph
C)drawing
D)photograph
19.
The amount of space an object occupies is its ________.
A)mass
B)weight
C)length
D)volume
20.
A ratio of two different measures is called a _________.
A)size
B)rate
C)volume
D)weight
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