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Mass Conversion Activity
Objectives
 The students will be able to convert from mass to weight.
 The students will be able to convert from weight to mass.
Materials
 Calculator
 Mass Data Sheet
BackgroundForce equals mass time acceleration.
Weight is a force and it can replace force in the equation.
The acceleration would be gravity, which is an acceleration.
F (force) = m (mass) * a (acceleration)
F = m * a.
Fw (weight) = m (mass) * g (gravity, 9.8 m/s^2)
Fw = m * 9.8 m/s^2.
To change from mass to weight multiply by gravity (9.8 m/s^2)
Example Change 30 kg (mass) to Newtons (weight)
Fw = m * 9.8 m/s^2
Fw = 30 kg * 9.8 m/s^2 = 294 N.
To change from weight to mass divide by gravity (9.8 m/s^2).
Example Change 49 N (weight) to mass m = Fw / 9.8 m/s^2
m = 49 N / 9.8 m/s^2 = 5 kg
Procedure Use THIS LINK
to get the mass data sheet.
The data sheet has the mass and weight data for 14 historical planes.
The English measurement systems values are also included in the chart.
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Related Pages:
LIFT Home Page
Aeronautics Activities
Aerospace Activities Page
Aerodynamics Index



