U2 CP Chem Measurement

Front

What is the purpose of selecting a scale for a graph?

Back

To accurately represent the data and make it easier to interpret the results.

Front

What is the SI standard unit for mass?

Back

Kilograms (kg)

Front

What type of graph shows a constant relationship between variables?

Back

Constant graph.

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 only if there is a decimal point.

Front

What is standard form in scientific notation?

Back

A way to express numbers as a product of a number between 1 and 10 and a power of 10.

Front

What is the significance of significant figures in measurements?

Back

They indicate the precision of a measurement.

Front

How do you convert a number from standard form to decimal form?

Back

Move the decimal point to the right for positive exponents and to the left for negative exponents.

Front

What is the difference between a direct and an indirect relationship in graphs?

Back

A direct relationship shows that as one variable increases, the other also increases, while an indirect relationship shows that as one variable increases, the other decreases.

Front

What is the formula for converting Celsius to Kelvin?

Back

K = °C + 273.15

Front

What is the purpose of using units in measurements?

Back

Units provide a standard for comparison and understanding of the measurement.