# Kinetic and Potential Energy Stores P1.4 & 5

- Created by: NKaiya
- Created on: 03-12-20 16:34

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- Kinetic and Potential energy stores P1.4 & 5
- Gravitational Potential Energy
- Energy is transferred to the Gravitational Potential Energy (G.P.E) Store because it requires work to raise an object
- The G.P.E store depends on the objects mass, height and gravitational field strength. The higher the object is lifted, the more energy is transferred to the store.
- The formula is G.P.E (J) = mgh - mass (kg) x gravitational field strength (N/kg) x height (m)
- Energy lost from G.P.E store = Energy gained in the kinetic energy store

- Kinetic Energy
- Anything moving has a kinetic energy store. Energy is transferred to this store when the object speeds up and away when the object slows down.
- Kinetic Energy Store depends on the objects mass and speed. The greater the mass and the faster it's going the more kinetic energy
- The formula is KE(J) = 1/2mv² - 1/2 x mass(kg) x speed² (m/s)

- Elastic Potential Energy
- Stretching or squashing an object can transfer energy
- The formula for E.P.E = 1/2ke² = 1/2 x spring constant (N/m) x extension² (m)

- Gravitational Potential Energy

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