Significant Figures and Measurements Quiz

Which of the following numbers contains the designated CORRECT number of significant figures?

• 0.00302 2 significant figures

• 0.04300 5 significant figures

• 1.04 2 significant figures

• 3.0560 4 significant figures

Which is a derived quantity?

• Electric current

• Temperature

• time

• voltage

Tessie measures her bathroom tiles to be 10 in by 8 in. What are the length and width in cm?

• 20.32 cm by 19.6 cm

• 25.4 cm to 24.5 cm

• 25.4 cm by 20.32 cm

• 35.4 cm by 12.32 cm

27 000 written in scientific notation is

• 27 x 10-4

• 2.7 x 10-4

• 2.7 x 103

• 2.7 x 10

If the density of a substance is 8 g/mL, what volume would 40 g of the substance occupy?

• 0.2 Ml

• 32 Ml

• 5 mL

• 320 mL

How much wood do you need to a form a triangular garden frame if one side of the frame has a length of 11 ft, and the other two sides are 2 feet longer than the first side?

• 33 ft

• 35 ft

• 36 ft

• 37 ft

Which statement is NOT true?

• Precise measurements are always accurate.

• Accurate measurements are always precise.

• Precise measurements can be inaccurate.

• Inaccurate measurements can be precise.

Which of the following statements best differentiates random errors from systematic errors?

• Random errors vary unpredictably in magnitude and direction, while systematic errors are consistent and repeatable.

• Random errors are caused by flawed experimental procedures, while systematic errors result from environmental factors.

• Random errors can be corrected by calibration, while systematic errors cannot be reduced by repeating measurements.

• Random errors always make measurements larger, while systematic errors always make them smaller.

Which of these is NOT true for random errors?

• They are difficult to detect.

• They are less likely for small sizes.

• They do not arise from the design of the study.

Which of the following statements is INCORRECT regarding systematic error?

• It is the same as random error

• it can be minimized by increasing the study samples.

• it can be increased by increasing the study samples.

• it occurs as a result of 'the luck of the draw' an inaccurate estimate resulting from the sample that was not representative of the population