What is the law of conservation of energy?
The law of conservation of energy states that energy cannot be created or destroyed it can only be transferred from one form to another. An example of this is when an object is falling: its gravitational potential energy is transferred to kinetic energy. In some systems the efficiency of this transfer may not be 100% and so energy can be dissipated to the surroundings (eg as sound, heat).
JR
Related Physics GCSE answers
All answers ▸Photons with 605 THz frequency strike metal of 1.2eV work function. Calculate the maximum energy of photoelectrons and their velocity. What amount of energy is necessary to stop all photoelectrons? (Planck's constant. electron mass and charge are given)
What is an isotope?
What does it mean to 'earth' something?
If Hannah slows down from a speed of 12 m/s to 8 m/s and has a mass of 45kg, how much force has been exerted on her to cause this deceleration?