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GCSE Physics Equations Flashcards
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GCSE Physics Equations Flashcards

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Questions and Answers

What is the formula for Kinetic Energy?

Kinetic energy = 0.5 x mass x (speed) squared

What is the formula for Gravitational Potential Energy (GPE)?

GPE = m x gravitational field strength x height

What does the formula Power = work done (energy) / time represent?

Power = work done / time

How is efficiency calculated?

<p>Efficient = output / input x 100</p> Signup and view all the answers

What is the formula for Charge Flow?

<p>Charge flow = current x time</p> Signup and view all the answers

What is the equation for Potential Difference?

<p>Potential difference = current x resistance</p> Signup and view all the answers

How do you calculate Total Resistance?

<p>Resistance of component 1 + resistance of component 2</p> Signup and view all the answers

What is the formula for Power (with potential difference)?

<p>Power = current x potential difference</p> Signup and view all the answers

What is the formula for Power (with resistance)?

<p>Power = resistance x (current) squared</p> Signup and view all the answers

What does Energy Transferred equal?

<p>Energy transferred = power x time</p> Signup and view all the answers

Calculate Energy Transferred (with charge flow).

<p>Energy transferred = charge flow x resistance</p> Signup and view all the answers

What is the formula for Density?

<p>Density = mass / volume</p> Signup and view all the answers

What is the equation for Weight?

<p>Weight = mass x gravitational field strength</p> Signup and view all the answers

Calculate Work Done.

<p>Work done = force x distance</p> Signup and view all the answers

What is the formula for Force?

<p>Force = spring constant x extension</p> Signup and view all the answers

What is the equation for Moments of a Force?

<p>Moment of a force = force x distance</p> Signup and view all the answers

Calculate Moment.

<p>Moment = mass x volume</p> Signup and view all the answers

What is the formula for Resultant Force?

<p>Resultant force = mass x acceleration</p> Signup and view all the answers

How do you calculate Pressure?

<p>Pressure = force normal to a surface / area of the surface</p> Signup and view all the answers

What is the formula for Acceleration?

<p>Acc = change in velocity / time taken</p> Signup and view all the answers

What is the relationship between pressure and volume in gases?

<p>Constant = pressure x volume</p> Signup and view all the answers

Study Notes

Energy

  • Kinetic energy formula: KE = 0.5 x mass x (speed)²
  • Gravitational potential energy (GPE) formula: GPE = mass x gravitational field strength x height
  • Power defined as work done (energy) over time: Power = work done / time
  • Efficiency calculated by the ratio of output to input, multiplied by 100: Efficiency = (output/input) x 100

Electricity

  • Charge flow expressed as the product of current and time: Charge flow = current x time
  • Potential difference (voltage) calculated using: Potential difference = current x resistance
  • Total resistance in a series circuit is the sum of individual resistances: Total resistance = Resistance1 + Resistance2
  • Power using potential difference denoted by: Power = current x potential difference
  • Alternative power formula involving resistance: Power = resistance x (current)²
  • Energy transferred relates to power and time: Energy transferred = power x time
  • Energy transferred can also be calculated with charge flow: Energy transferred = charge flow x resistance

Particle Model of Matter

  • Density defined by the equation: Density = mass / volume

Forces

  • Weight calculation given by: Weight = mass x gravitational field strength
  • Work done determined through the formula: Work done = force x distance
  • Force related to spring properties: Force = spring constant x extension
  • Moment of a force equation: Moment of a force = force x distance
  • General moment defined by: Moment = mass x volume
  • Resultant force calculated as: Resultant force = mass x acceleration
  • Pressure calculated by the formula: Pressure = force normal to a surface / area of the surface
  • Acceleration defined through change in velocity over time: Acceleration = (final velocity - initial velocity) / time taken
  • Pressure in gases follows the relationship: Constant = pressure x volume

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Description

This quiz encompasses essential physics equations related to energy, including kinetic energy, gravitational potential energy, power, and efficiency. It is designed to help students prepare for GCSE examinations by reinforcing their understanding of these critical concepts.

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