Scientific Measurements

Front

What are significant figures?

Back

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

Front

How many significant figures are in the number 10,000?

Back

1 significant figure.

Front

What is the SI base unit of mass?

Back

Kilogram.

Front

What is the SI base unit of length?

Back

Meter.

Front

How many significant figures are in the number 10.005?

Back

5 significant figures.

Front

How do you round the number 12,678.56 to four significant figures?

Back

12,680.

Front

What is the purpose of using significant figures in scientific measurements?

Back

To communicate the precision of measurements and calculations.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, measured in kilograms, while weight is the force exerted by gravity on that mass.

Front

What is the metric unit for measuring volume?

Back

Liter.

Front

What is the formula for converting Celsius to Kelvin?

Back

K = °C + 273.15.