A Physical Science Test Book Has A Mass Of 2.2 Kg. What Is The Weight On The Earth?

2025-06-10 11:58:20 122

5 answers

Aiden

2025-06-11 05:47:32

As someone who’s always been fascinated by the way the world works, I love breaking down problems like this. A physical science test book with a mass of 2.2 kg has a weight on Earth that can be calculated using the formula weight = mass × gravitational acceleration. On Earth, gravitational acceleration is approximately 9.8 m/s². So, the weight would be 2.2 kg × 9.8 m/s² = 21.56 newtons.

It’s interesting to note that weight and mass are often confused, but they’re not the same thing. Mass is a measure of how much matter is in an object, while weight is the force exerted on that mass by gravity. This means if you took the same book to the Moon, its mass would still be 2.2 kg, but its weight would be much less because the Moon’s gravity is weaker.

Frank

2025-06-15 02:17:14

I’ve always enjoyed solving practical problems, and this one’s straightforward. To find the weight of the 2.2 kg book on Earth, multiply its mass by Earth’s gravitational acceleration, which is about 9.8 m/s². That gives you 2.2 × 9.8 = 21.56 newtons. What’s cool is that this calculation shows how gravity affects objects differently. For example, on Mars, where gravity is about 3.7 m/s², the same book would weigh only 8.14 newtons. It’s a neat way to see how physics applies everywhere.

Theo

2025-06-12 17:03:36

Calculating weight is simple once you know the formula. For a 2.2 kg book on Earth, you just multiply the mass by 9.8 m/s². That’s 2.2 × 9.8 = 21.56 newtons. It’s a basic physics problem, but it’s a good reminder of how gravity works. If you ever get curious, you could compare this to other planets to see how much the weight changes.

Fiona

2025-06-12 21:09:10

I remember learning about weight and mass in school, and this problem takes me back. A 2.2 kg book on Earth would weigh 21.56 newtons because weight = mass × gravity (2.2 × 9.8). It’s fun to think about how this would change elsewhere—like on Jupiter, where gravity is way stronger, the book would feel much heavier. Physics might seem dry, but little things like this make it interesting.

Aiden

2025-06-15 00:41:08

Weight is just mass times gravity, so for a 2.2 kg book on Earth, it’s 2.2 × 9.8 = 21.56 newtons. This kind of problem is a great example of how physics is part of everyday life. It’s also a good way to understand why objects feel heavier or lighter depending on where you are in the universe.

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