Find the Weight of an Object Without a Scale

Have you ever had questions about mass or how to find the weight of the object itself? Well, scroll down to Step 1 to find the weight of an object without using a scale to weigh the object.

Steps

Find the weight through the volume

1. Figure out the volume of the object. Let's say you have a cube with a dimension of 10x10x10. The volume would be 1000.
2. Use the formula mass equals density times volume. This requires you to know the density of the object. If the object is water, for example, you know it has a density of 1 gram per cubic centimetres. So for a volume of water of 1000 cc, the weight is 1000 grams.

Find the weight through the force exerted

1. Figure out the object's acceleration.
2. Then, through the force exerted, you should be able to figure out the mass by dividing the acceleration by the force exerted (by Newton's second law: force equals mass times acceleration).
   • For example, if a cube has an acceleration of 1000 millimetres per second squared (always measure in millimetres) and the force exerted is 2 kilograms millimetres per second squared, then the cube must weigh 2 grams.

Tips

• When measuring an object, always remember to find the volume the right way. No short cuts.

Warnings

• Use the first example for objects that you use in your everyday life.

Things You'll Need

• Ruler or the information given to you from the instructor
• (optional) some working out paper & a pencil/pen

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