Mass and Weight

Front

What is the difference between mass and weight?

Back

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

Front

How does weight change with distance from the Earth's center?

Back

Weight decreases as an object moves away from the center of the Earth due to the reduction in gravitational force.

Front

What is the scientific unit for weight?

Back

The scientific unit for weight is the newton (N).

Front

What is the scientific unit for mass?

Back

The scientific unit for mass is the kilogram (kg).

Front

Is weight constant for an object?

Back

No, weight is not constant; it changes with the gravitational field strength.

Front

What happens to weight when a person accelerates upward in an elevator?

Back

The person experiences a temporary increase in weight due to the additional force exerted by the elevator.

Front

What is the formula to calculate weight?

Back

Weight (W) = mass (m) × gravitational acceleration (g).

Front

What is gravitational acceleration on Earth?

Back

Gravitational acceleration on Earth is approximately 9.81 m/s².

Front

If an object has a mass of 10 kg, what is its weight on Earth?

Back

Weight = mass × gravitational acceleration = 10 kg × 9.81 m/s² = 98.1 N.

Front

Does mass change with location?

Back

No, mass remains constant regardless of location.