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)

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