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?

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

What is the formula for Charge Flow?

Charge flow = current x time Signup and view all the answers

What is the equation for Potential Difference?

Potential difference = current x resistance Signup and view all the answers

How do you calculate Total Resistance?

Resistance of component 1 + resistance of component 2 Signup and view all the answers

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

Power = current x potential difference Signup and view all the answers

What is the formula for Power (with resistance)?

Power = resistance x (current) squared Signup and view all the answers

What does Energy Transferred equal?

Energy transferred = power x time Signup and view all the answers

Calculate Energy Transferred (with charge flow).

Energy transferred = charge flow x resistance Signup and view all the answers

What is the formula for Density?

Density = mass / volume Signup and view all the answers

What is the equation for Weight?

Weight = mass x gravitational field strength Signup and view all the answers

Calculate Work Done.

Work done = force x distance Signup and view all the answers

What is the formula for Force?

Force = spring constant x extension Signup and view all the answers

What is the equation for Moments of a Force?

Moment of a force = force x distance Signup and view all the answers

Calculate Moment.

Moment = mass x volume Signup and view all the answers

What is the formula for Resultant Force?

Resultant force = mass x acceleration Signup and view all the answers

How do you calculate Pressure?

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

What is the formula for Acceleration?

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

What is the relationship between pressure and volume in gases?

Constant = pressure x volume 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.