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). Weight can change depending on the gravitational field strength.

Front

How does weight change when moving from Earth to the Moon?

Back

Weight decreases on the Moon because the gravitational force is weaker than on Earth. However, mass remains the same.

Front

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

Back

Weight can be calculated using the formula: Weight = mass × gravitational acceleration. On Earth, gravitational acceleration is approximately 9.81 m/s², so the weight would be 10 kg × 9.81 m/s² = 98.1 N.

Front

What happens to the mass of an object when it is taken to a different planet?

Back

The mass of an object remains constant regardless of its location; it does not change when moving to a different planet.

Front

What is the formula to calculate weight?

Back

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

Front

Is it true that an object's mass is greater on Jupiter than on Earth?

Back

False. An object's mass remains the same regardless of the planet it is on.

Front

What is the weight of a 5 kg object on Jupiter, where gravitational acceleration is approximately 24.79 m/s²?

Back

Weight = mass × gravitational acceleration = 5 kg × 24.79 m/s² = 123.95 N.

Front

Why do astronauts feel weightless in space?

Back

Astronauts feel weightless in space because they are in free fall, experiencing microgravity, which means they are falling towards Earth at the same rate as their spacecraft.

Front

What is the gravitational acceleration on the Moon?

Back

The gravitational acceleration on the Moon is approximately 1.62 m/s².

Front

If a rat weighs 9.81 N on Earth, what is its mass?

Back

Mass can be calculated using the formula: mass = weight / gravitational acceleration. On Earth, mass = 9.81 N / 9.81 m/s² = 1 kg.