Assessment - Concept 1

Front

What are significant figures?

Back

Significant figures are the digits in a number that contribute to its precision. This includes all non-zero digits, any zeros between significant digits, and trailing zeros in the decimal portion.

Front

Which zeros are NOT considered significant?

Back

Zeros in front of nonzero digits are not significant.

Front

How do you determine the number of significant figures in a measurement?

Back

Count all non-zero digits, any zeros between them, and trailing zeros in a decimal number. Leading zeros are not counted.

Front

What is the rule for rounding when performing calculations with significant figures?

Back

The result should be rounded to the least number of significant figures in any of the numbers used in the calculation.

Front

Convert 1.2 L to mL.

Back

1.2 L = 1200 mL.

Front

What is the significance of the bullseye diagram in measurements?

Back

It illustrates the concepts of accuracy and precision in measurements.

Front

What does high accuracy and low precision mean?

Back

High accuracy means the measurements are close to the true value, while low precision indicates that the measurements vary widely.

Front

What does low accuracy and high precision mean?

Back

Low accuracy means the measurements are far from the true value, but they are consistently close to each other.

Front

Identify the measurement with three significant figures: 0.05g, 0.050g, 0.056g, 0.0563g.

Back

0.0563g has three significant figures.

Front

Back

The result is 86.