# Physics equations

• Created by: NlB
• Created on: 01-04-18 20:53

## 1. What is the equation for power?

• power = charge flow x current
• power = current x resistance squared
• power = current squared x resistance
• power = current / charge flow
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## 2. What is the equation for force?

• Force = change in momentum / time taken
• force = change in momentum x current
• force = change in momentum / current
• force = change in resistance / potential difference

## 3. What is the equation for energy transferred?

• energy transferred = charge flow x potential difference
• energy transferred = current x resistance
• energy transferred = resistance x power
• energy transferred = current x power

## 4. What is the equation for magnetic flux density (B)?

• B = length x width x force
• B = force / current x length
• B = length x width x height
• B = force x current x length

## 5. What is the eqaution for density?

• density = mass / area
• density = mass / volume
• density = area x mass
• density = mass x volume