Batteries store _______ energy for later use, but often are charged using ______ energy
chemical, electrical
What are the two main categories of energy?
kinetic and potential energy
The ability to make things move or to do work is ___
energy
Sound is produced when an object _____.
vibrates
A laptop transfers electrical energy to light, sound and thermal. Which type of energy is considered wasted?
thermal (heat)
When you burn coal, the chemical energy is transferred as what type of energy?
thermal(heat) + light
Oil and petrol have what type of energy?
chemical energy
What type of energy is transferred around a circuit?
electrical
Any source of light has ........................... energy.
light
What type of potential energy does a wrecking ball use?
gravitational
Kinetic energy is defined as energy in ____________.
motion
Explain the energy that the ball has in picture 1, and what will happen to that energy if the person lets go (picture 2).
The ball has potential energy, if the person lets go, the potential energy will become kinetic energy as the ball falls.
Name 3 sources of renewable energy
wind, solar, wave, tidal, geothermal
Any object that is moving has what kind of energy?
kinetic energy
What type of energy is in food?
chemical Energy
What is the name of the energy store when objects are up high?
gravitational (potential) energy
What is potential energy?
Energy that is stored
Which point has the most potential energy?
A - the highest position