work and energy

• what is work measured in

  energy
• equation for work

  force x distance moved
• what is the equation for force

  spring constant x extension
• Cars are being made more

  efficient in order to reduce greenhouse gases and waste less energy
• some energy is lost due to the work done by friction
• total energy in the system must stay the same
• Each spring will have a different spring constant which will determine how much force is required to stretch a

  spring.