Pearson Chemistry Chapter 3 Scientific Measurement

Front

What is the conversion factor between kilograms and grams?

Back

1 kg = 1000 g, therefore 5 kg = 5000 g.

Front

Define accuracy in scientific measurement.

Back

Accuracy is the degree to which a measurement approaches the true value.

Front

What are significant figures?

Back

Significant figures are the digits in a number that contribute to its precision.

Front

How many significant figures are in the number 4004?

Back

There are 4 significant figures in the number 4004.

Front

What is the difference between accuracy and precision?

Back

Accuracy refers to how close a measurement is to the true value, while precision refers to how consistent repeated measurements are.

Front

If a measurement is precise but not accurate, what does that mean?

Back

It means the measurements are consistent with each other but not close to the true value.

Front

What metric unit is used to measure area?

Back

The metric unit for area is square meters (sq m).

Front

How do you calculate the area of a rectangle?

Back

Area = length × width.

Front

What is the significance of using significant figures in calculations?

Back

Significant figures indicate the precision of a measurement and help maintain accuracy in calculations.

Front

What is the metric unit for mass?

Back

The metric unit for mass is the kilogram (kg).