Measuring in Science

Front

What is the formula for calculating the area of a rectangle?

Back

Area = length × width.

Front

What is precision in measurements?

Back

Precision refers to the repeatability and consistency of measurements.

Front

What is the difference between precision and accuracy?

Back

Precision is about consistency, while accuracy is about correctness.

Front

How do you convert meters per second to kilometers per hour?

Back

Multiply the speed in m/s by 3.6.

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 0.00456?

Back

3 significant figures.

Front

What is density?

Back

Density is mass per unit volume, often expressed as g/cm³ or kg/m³.

Front

How do you calculate density?

Back

Density = mass/volume.

Front

What is the significance of significant figures in scientific measurements?

Back

They indicate the precision of a measurement.

Front

What is the area of a rectangle with a length of 5 cm and a width of 3 cm?

Back

15 cm².