Topic Details (Notes format)

How to Convert Units (Metric System)

Subject: Mathematics

Book: Maths Mastery

Unit conversion is fundamental in science, engineering, and everyday tasks like cooking or traveling. Within the metric system, units scale by powers of ten, simplifying conversions. Common prefixes include kilo- (1,000), centi- (1/100), and milli- (1/1,000). For example, converting 2.5 kilometers to meters involves 2.5 × 1,000 = 2,500 meters. Similarly, 350 milliliters can be written as 0.35 liters. Memorizing base relationships—like 1 kg = 1,000 g or 1 m = 100 cm—lets you fluidly shift between units. This skill is crucial for tasks ranging from diet planning to constructing measurement-based projects and scientific research protocols.

Practice Questions

If sin(A) = 1/2 and A is acute, what is the value of A?

View Question

A car travels 240 km in 4 hours. What is its average speed?

View Question

What is the sum of all angles in a hexagon?

View Question

If x + y = 10 and xy = 21, what is the value of x³ + y³?

View Question

A sum of money triples itself in 12 years at simple interest. What is the rate of interest per annum?

View Question

The probability of getting an even number when rolling a die is:

View Question

If the sum of the angles of a polygon is 1080°, how many sides does the polygon have?

View Question

If the product of two numbers is 120 and their sum is 26, what are the numbers?

View Question

If x^3 - 3x^2 + 4 = 0, what is one root of the equation?

View Question

What is the square root of 121?

View Question