Expressing Units

Learn the units that go with various quantities, express units using their abbreviations, and make new units by combining numerical prefixes with units.
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Questions #: 13
Time: 5 minutes
Pass Score: 80.0%
Style
Mode

A number indicates “how much,” but the unit indicates “of what.”

POINTS (1)

Correct Answer

Explanation

Chemistry unlike from other science branches, it does not use the International System of Units

POINTS (1)

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Explanation

The International System of Units (SI) uses pounds as a unit of mass

POINTS (1)

Correct Answer

Explanation

To express a quantity, you need to combine a number with a unit

POINTS (1)

Correct Answer

Explanation

It makes sense to express the width of a human in meters

POINTS (1)

Correct Answer

Explanation

A prefix used with a unit that refers to a multiple or fraction of a fundamental unit to make a more conveniently sized unit for a specific quantity

POINTS (1)

Correct Answer

Explanation

A _______ unit is a unit that is a product or a quotient of a fundamental unit

Missing
POINTS (1)

Correct Answer

Explanation

Volume has a unit of \(m^3\)

POINTS (1)

Correct Answer

Explanation

A liter is one-tenth of a meter cubed

POINTS (1)

Correct Answer

Explanation

Human hair measurement unit

A human hair has a diameter of about 6.0 x 10-5.  Suggest an appropriate unit for this measurement and write the diameter of a human hair in terms of that unit.

POINTS (1)

Correct Answer

Explanation

What is the velocity of a car if it goes 25 m in 5.0 s?

POINTS (1)

Correct Answer

Explanation

Express the volume of an olympic-sized swimming pool, 2,500,000 L, in more appropriate units.

POINTS (1)

Correct Answer

Explanation

A common garden snail movies about 6.1 m in 30 min. What is its velocity in meters per minute (m/min)?

velocity = m/min

POINTS (1)

Correct Answer

Explanation

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sin cos tan
sin-1 cos-1 tan-1 π e
xy x3 x2 ex 10x
y√x 3√x √x ln log
( ) 1/x % n!
7 8 9 + MS
4 5 6 – M+
1 2 3 × M-
0 . EXP ÷ MR
± RND C = MC

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