20 grams
20 gMass · definition
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Mass
In your hand
Bar length measures mass, not physical size. Both bars start at zero kilograms (kg). Pictures identify the objects only.
A little perspective
The mass of a squash ball is about 1.2 times 20 grams.
Mass: 20 g; definition.
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Representative mass: 24 g; representative; range 23 g–25 g.
A representative competition squash ball about 40 mm in diameter and 24 g. Approved ball specifications permit small tolerances and grades use different rebound markings.
World Squash — Squash ball specifications
The marked representative mass is calibrated. Unmeasured illustration details are representative.
Measurement details
Compare 20 grams with the mass of a squash ball. The notes below explain how each value was chosen.
Mass · definition
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Representative mass · representative · range 23 g–25 g
A representative competition squash ball about 40 mm in diameter and 24 g. Approved ball specifications permit small tolerances and grades use different rebound markings.
The diagram uses the recorded measurements. Details outside the marked spans do not set the scale.
Mass is distinct from weight: an object’s mass stays the same as gravity changes.
Change your perspective
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A little smaller. A little larger.