How to calculate a change in potential energy

• Resources Structure
• A level
• Physics
• VI. Gravitational field
• 30. Potential energy

• Exam Specifications
• A Level
• AQA GCE AS/A Physics A (5451/6451)
• A2 Module 4 Waves, Fields and Nuclear Energy
• 3. Gravitational and electric fields
• Uniform motion in a circle
• Centripetal force equation
• Gravity, Newtonís law, the gravitational constant G
• Gravitational field strength g
• Gravitational potential V
• Motion of masses in gravitational fields
• Coulombís law, permittivity of free space
• AQA GCE AS/A Physics B (5456/6456)
• I. AS Module 1 Foundation Physics
• 3. Energy Concepts
• Quantitative application of conservation of energy in uniform gravitational fields
• V. A2 Module 5 Fields and their Applications
• 1. Electric and Gravitational Fields
• Force between point masses
• Field strength for point charge
• Field strength for point mass
• Uniform electric field
• Energy transformed in fields
• Quantitative application of conservation of energy in uniform gravitational and electric fields
• Use of force-distance graphs to determine changes in potential energy
• Calculation of potential energy changes in gravitational and electric fields
• Similarities and differences between electric and gravitational fields
• Concept of a force field as a region in which a body experiences a force
• Use of graphs and equations for force and field strength for spherical charges and masses treated as points in a vacuum
• Force between point charges

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