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Project
Make your own spring balance with the help of your teacher and calibrate it using standard weights. Now measure the weights of different objects and calculate the ratio of the weight and mass of different objects. Do you observe a pattern?
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Key Points
The ratio of weight to mass comes out nearly the same for every object.
Key Points / Good Practices
- Make a simple spring balance and mark its scale using known standard weights.
- Hang different objects and read each weight in newton.
- Note the mass of each object in kilograms.
- Work out the ratio weight ÷ mass for each object.
- You will find the ratio is about the same (close to 10 N/kg) for all objects.
Weight ÷ mass is nearly constant (about 10 N/kg) for all objects on Earth.
