1. What is Weight?

Weight is the force exerted on an object due to gravity. It is calculated as the product of an object's mass and the acceleration due to gravity (W = m × g). Weight is measured in newtons (N) in the SI system.

2. How Does the Calculator Work?

The calculator uses the weight formula:

Where:

• \( W \) — Weight (newtons)
• \( m \) — Mass (kilograms)
• \( g \) — Acceleration due to gravity (9.8 m/s² on Earth)

Explanation: The weight of an object depends on its mass and the gravitational acceleration at its location.

3. Importance of Weight Calculation

Details: Calculating weight is fundamental in physics and engineering for determining forces, designing structures, and understanding mechanical systems.

4. Using the Calculator

Tips: Enter mass in kilograms and gravitational acceleration in m/s² (9.8 m/s² for Earth). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between mass and weight?
A: Mass is a measure of the amount of matter in an object (kg), while weight is the force exerted on that mass by gravity (N).

Q2: Why is g = 9.8 m/s²?
A: This is the average gravitational acceleration at Earth's surface. It varies slightly by location (9.78-9.83 m/s²).

Q3: How would weight change on the Moon?
A: With Moon's gravity (1.62 m/s²), weight would be about 1/6 of Earth weight for the same mass.

Q4: Can weight be zero?
A: In free-fall or space (microgravity), apparent weight can be zero, though mass remains constant.

Q5: Why use newtons instead of kilograms for weight?
A: Kilograms measure mass; newtons properly measure force (weight). 1 kg mass weighs ~9.8 N on Earth.