Gravity, Weight and Mass

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other, depending on their masses and the distance between them.

Front

What is the difference between weight and mass?

Back

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

Front

What is the acceleration due to gravity on Earth?

Back

The acceleration due to gravity on Earth is approximately 9.81 m/sec².

Front

Who formulated the law of universal gravitation?

Back

The law of universal gravitation was formulated by Sir Isaac Newton.

Front

What is the formula for calculating weight?

Back

Weight (W) = mass (m) × acceleration due to gravity (g).

Front

How does distance affect gravitational attraction?

Back

Gravitational attraction decreases as the distance between two objects increases.

Front

What is the gravitational pull of the Earth on a 1 kg object?

Back

The gravitational pull of the Earth on a 1 kg object is approximately 9.81 newtons.

Front

Is gravity a contact or non-contact force?

Back

Gravity is a non-contact force, as it acts at a distance without physical contact.

Front

What happens to weight in space?

Back

In space, weight decreases because the gravitational pull is weaker, but mass remains the same.

Front

What is the relationship between mass and gravitational force?

Back

The gravitational force increases with greater mass; more massive objects exert a stronger gravitational pull.