Mass and Weight Concepts

Front

Weight Formula

Back

Weight = mass \times gravity

Front

Difference between Mass and Weight

Back

Mass is constant; weight changes with gravity.

Front

On Earth, gravity is 9.81N.

Back

This is the standard acceleration due to gravity on Earth.

Front

Density

Back

Solid materials of the same size and shape can have different weights due to how tightly packed their molecules are.

Front

Relative density of Water

Back

1.00

Front

Relative density of Copper

Back

8.90 (Sinks in water)

Front

Material with the lowest relative density

Back

Polythene (0.90)

Front

Material that sinks with a relative density of 7.90

Back

Cast iron

Front

Material that sinks with a relative density of 8.90

Back

Copper

Front

Outcome for materials with relative density greater than 1

Back

Sink in water