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Question 1

What is weight?

Answer 1

Weight is the force of gravity acting on an object’s mass.

Question 2

What is the formula for weight?

Answer 2

Weight = Mass × Gravitational field strength (W = m × g)

Question 3

What is the SI unit of weight?

Answer 3

The newton (N)

Question 4

What is the gravitational field strength on Earth?

Answer 4

Approximately 9.8 N/kg (can be rounded to 10 N/kg in some problems)

Question 5

How does weight differ from mass?

Answer 5

Mass is the amount of matter in an object (kg), while weight is the force due to gravity (N).

Question 6

Does your weight change on different planets?

Answer 6

Yes, because the gravitational field strength is different on each planet.

Question 7

Does your mass change on different planets?

Answer 7

No, your mass stays the same regardless of location.

Question 8

What instrument is used to measure weight?

Answer 8

A spring scale or a force meter.

Question 9

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

Answer 9

10 kg × 9.8 N/kg = 98 N

Question 10

Why do astronauts feel weightless in space?

Answer 10

Because they are in free fall, constantly falling around Earth, experiencing microgravity.