Physics Equations 4-6 Flashcards Preview

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Flashcards in Physics Equations 4-6 Deck (10)
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1

Equation for weight

Weight (N) = Mass (kg) * Gravitational field strength (N/kg^2)

2

Equation for mass (GFS)

Mass (kg) = Weight (N) / Gravitational Field Strength (N/kg^2)

3

Equation for Gravitational Field Strength

GFS (N/kg^2) = Weight (N) / Mass^2 (kg^2)

4

Efficiency equation

Efficiency = Useful Energy Transferred by Device (J) / Energy Supplied (J)

5

Energy Supplied equation

Energy Supplied (J) = Useful energy transferred (J / Efficiency

6

Useful Energy Transfered Equation

Useful Energy Transferred (J) = Energy Supplied (J) * Efficiency

7

What is strange about efficiency?

Efficiency has no unit but, is sometimes expressed as a percentage.

8

Equation for Momentum

Momentum (kg m/s) = Mass (kg) * Velocity (m/s)

9

Equation for Mass (Momentum)

Mass (kg) = Momentum (kg m/s) * Velocity (m/s)

10

Velocity Equation

Velocity (m/s) = Momentum (kg m/s) / Mass (kg)