Unit and measurement

Front

What is the SI unit for mass?

Back

Kilogram (kg)

Front

What is the SI unit for time?

Back

Second (s)

Front

What tool is used to measure mass?

Back

Ohaus balance or electronic balance.

Front

What is the formula to convert grams to kilograms?

Back

Divide the number of grams by 1000.

Front

How do you read a vernier caliper?

Back

Align the zero of the sliding scale with the main scale and read the measurement where the scales align.

Front

What is the diameter of a circle?

Back

The distance across the circle through its center.

Front

What is the difference between mass and weight?

Back

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

Front

What is the formula for calculating the volume of a cylinder?

Back

Volume = π × radius² × height.

Front

What is the significance of significant figures in measurement?

Back

They indicate the precision of a measurement.

Front

What is the unit of measurement for length in the SI system?

Back

Meter (m)