#3
4.1.1.2 Energy
Paper 1 · Higher combined
Spec reference: 4.1.1 (subtopic).
What you need to know
- Energy Stores
- Movement Energy
- kinetic energy = ½ x mass × speed²
- E = ½mv²
- When something is off the ground, it has gravitational potential energy
- gravitational potential energy = mass x gravitational field strength x
- height
- E = mgh
Self-assessment (checklist)
- I can recall and apply the correct equation to calculate the
- I can rearrange the equation linking kinetic energy, mass
- I can calculate the amount of energy associated with a
- I can rearrange the equation linking elastic potential
- I can recall and apply the correct equation to calculate the
- I can rearrange the equation linking gravitational field
Key steps (method)
- Identify what the question is testing and use the correct equation/definition.
- Show substitutions and units clearly.
Common mistakes
- Unit conversions, rearranging errors, or quoting a law without applying it.