Phy_🤸‍♂️Prac🤸‍♀️_Gravity, Mass and Weight GCA

Front

What is mass?

Back

Mass is a measure of the amount of matter in an object, typically measured in kilograms (kg). It does not change regardless of location.

Front

What is weight?

Back

Weight is the force exerted by gravity on an object, calculated as the mass of the object multiplied by the acceleration due to gravity (W = m × g). It is measured in newtons (N).

Front

How does gravity affect weight?

Back

Weight varies depending on the gravitational pull of the celestial body. For example, an object weighs less on the Moon than on Earth due to the Moon's weaker gravity.

Front

What is the acceleration due to gravity on Earth?

Back

The acceleration due to gravity on Earth is approximately 9.81 m/s².

Front

What is the acceleration due to gravity on the Moon?

Back

The acceleration due to gravity on the Moon is approximately 1.63 m/s², which is about one-sixth of that on Earth.

Front

If an object has a mass of 50 kg on Earth, what is its mass on the Moon?

Back

50 kg (mass remains the same regardless of location).

Front

What happens to a feather and a bowling ball dropped in a vacuum?

Back

Both the feather and the bowling ball will hit the ground at the same time because there is no air resistance in a vacuum.

Front

What is the relationship between mass and weight?

Back

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

Front

If an object weighs 60 N on Earth, what is its mass?

Back

Mass = Weight / Gravity = 60 N / 9.81 m/s² ≈ 6.12 kg.

Front

What is the formula to calculate weight?

Back

Weight (W) = Mass (m) × Acceleration due to gravity (g).