Intro to Physical Science (9th)

The symbols for units of length in order from smallest to largest are

• km, m, cm, mm

• km, mm, cm, m

• mm, m, cm, km

• mm, cm, m, km

Which of the following units would be most appropriate to use for measuring the volume of a glass of milk?

• °C

• mL

• cm

• mg

A beaker contains 0.52 mL of water. The beaker’s volume is _____ L.

• 0.052

• .00052

• 520

• 5.2

How many meters are there in 1684 cm

• 168.4

• 0.1684

• 1.684

• 16.84

In addition and subtraction, the significant figures in the answer must reflect the

• average number of significant figures in the problem.

• number in the calculation with the most significant figures.

• number in the calculation with the fewest significant figures.

• least precise measurement in the calculator (i.e. least number of decimal places)

In division and multiplication, the answer must not have more significant figures than the

• average number of significant figures in the problem.

• least precise measurement in the calculation (i.e. least number of decimal places)

• number in the calculation with the fewest significant figures.

• number in the calculator with the most significant figures.

In a graph, the variable on the horizontal axis is the _____.

• independent variable

• variable with the largest range

• dependent variable

• variable with the smallest range

In a graph showing the color change of a material over time, color change is the ____.

• variable with the largest range.

• independent variable

• variable with the smallest range.

• dependent variable.

The number of significant figures in the measurement 0.020000 kg is

• 5

• 7

• 4

• 2

The number 1.2658 rounded to three significant figures would be

• 1.37

• 2.00

• 1.27

• 1.30