Practice Problems: Density & Specific Gravity

Objectives:

By the end of this practice, you should be able to:

1. Define density.

2. Define specific gravity.

3. Calculate density and specific gravity.


Practice:

Here is some practice with the density and specific gravity calculations. Show all formulas and calculations.


Problem Density & Specific Gravity 1:

A rectangular block measures 2.3 x 5.1 x 7.8 centimeters. It has a mass of 66 grams. Determine its density and specific gravity.

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Problem Density & Specific Gravity 2:

A cylinder of plastic is 100 mm long, and 50 mm in diameter. It has a mass of 1 kg. Determine its specific gravity and indicate whether it would float or sink in water.

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Problem Density & Specific Gravity 3:

A board measures 2" x 6" x 5'. It weighs 15 Lbs, 4 oz. Determine its weight density and specific gravity.

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Problem Density & Specific Gravity 4:

A bar measures 12 mm x 20 mm x 1 m. It has a specific gravity of 2.78. Determine its mass.

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Problem Density & Specific Gravity 5:

A piece of unknown material has an intricate shape. It has a mass of 126 g. You submerge it to find it displaces 422 ml of water. What is the specific gravity of the piece?

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All information is subject to change without notification.
© Jim Flowers
Department of Technology, Ball State University