Mass vs Weight Review

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, measured in kilograms (kg). Weight is the force exerted by gravity on that mass, measured in newtons (N).

Front

What is the formula to calculate weight?

Back

Weight (W) = Mass (m) × Gravitational acceleration (g).

Front

What is gravitational acceleration on Earth?

Back

Approximately 9.8 m/s².

Front

What is gravitational acceleration on the Moon?

Back

Approximately 1.6 m/s².

Front

How does mass affect inertia?

Back

Inertia is the resistance of an object to change its state of motion. Greater mass means greater inertia.

Front

What is the unit of weight?

Back

The unit of weight is the newton (N).

Front

If an object has a mass of 5 kg, what is its weight on Earth?

Back

Weight = 5 kg × 9.8 m/s² = 49 N.

Front

If an object weighs 20 N on Earth, what is its mass?

Back

Mass = Weight / Gravitational acceleration = 20 N / 9.8 m/s² ≈ 2.04 kg.

Front

What happens to weight if you go to the Moon?

Back

Weight decreases because the gravitational acceleration on the Moon is lower than on Earth.

Front

What is the relationship between mass and weight?

Back

Weight is directly proportional to mass; as mass increases, weight increases.