Ch 1 Formative B

A mathematical expression that relates physical quantities.

• equation

• physical quantity

• scientific notation

• linear relationship

A property of a physical system that can be measured (like length, speed, or acceleration).

• equation

• physical quantity

• scientific notation

• linear relationship

A measure of how close the measured value of a quantity is to its actual value.

• accuracy

• precision

• scalar

• vector

Which of the following shows good precision but poor accuracy?

• A

• B

• C

• D

Which of the following shows good accuracy?

• A

• B

• C

• D

A measure of how close together the values of a series of measurements are to one another.

• precision

• accuracy

• significant figure

• linear relationship

The number of digits that are actually measured plus one estimated digit.

• significant figures

• linear relationship

• scientific notation

• inverse relationship

What is 300,000,000 m/s (speed of light) in scientific notation?

• 300 x 10⁶

• 0.3 x 10⁹

• 3.0 x 10⁸

• 3 x 10⁸

How many significant figures are there in 121.4?

• 1

• 2

• 3

• 4

An inverse relationship is shown by which graph?

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