Physics

• Work done = force x distance moved in same direction
• Energy can be transferred between objects by work done, heating or cooling, and electric current.
• The SI unit of energy is the joule (J).
• Energy is the ability to do work or transfer heat.
• Kinetic energy (KE) is the energy an object has due to its motion, given by KE=1/2mv^2 where m is mass and v is velocity.
• A closed system allows energy to enter but not leave.
• The law of conservation of energy states that the total amount of energy is constant in any process.
• Kinetic energy is the energy an object has due to its motion.
• Potential energy is stored energy that comes from position or shape.
• Power is the rate at which energy is used or supplied, measured in watts (W).
• Heat capacity is the amount of energy needed to raise the temperature of an object by one degree Celsius, with specific heat capacities varying depending on the substance.
• Heat capacity is the amount of energy needed to raise the temperature of an object by one degree Celsius.
• Specific latent heat is the amount of energy required to change the state of one kilogram of substance without changing its temperature.
• Heating or cooling involves adding or removing thermal energy from an object.
• Gravitational potential energy is stored when an object is raised above ground level.