KS3 Mass, weight and gravity

Front

What is the formula to calculate weight from mass?

Back

Weight (W) = Mass (m) × Gravitational acceleration (g), where g is approximately 9.81 m/s² on Earth.

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 when an object is taken to a different planet?

Back

Weight changes because it depends on the gravitational force of the planet, while mass remains constant.

Front

What is the weight of a 10 kg object on Earth?

Back

Weight = 10 kg × 9.81 m/s² = 98.1 N.

Front

If an object weighs 600 N on Earth, what can be said about its weight in space?

Back

Its weight in space would be less than 600 N due to reduced gravitational pull.

Front

What is the gravitational acceleration on Jupiter compared to Earth?

Back

The gravitational acceleration on Jupiter is more than 2 times that on Earth.

Front

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

Back

Weight = 50 kg × 9.81 m/s² = 490.5 N.

Front

What happens to the mass of an object when it is taken to the Moon?

Back

The mass remains the same regardless of location; it does not change.

Front

How do you convert weight in newtons to mass in kilograms?

Back

Mass (m) = Weight (W) / Gravitational acceleration (g). For Earth, m = W / 9.81.

Front

What is the weight of a 30 kg object on Earth?

Back

Weight = 30 kg × 9.81 m/s² = 294.3 N.