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Give one example of energy transfer.
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What are the two main categories of energy?
kinetic and potential energy
Which point has the most potential energy?
A - the highest position
Potential energy is referred to as ___________ energy.
stored
Kinetic energy is defined as energy in ____________.
motion
Sound is produced when an object _____.
vibrates
Batteries store _______ energy for later use, but often are charged using ______ energy
chemical, electrical
The ability to make things move or to do work is ___
energy
A laptop transfers electrical energy to light, sound and thermal. Which type of energy is considered wasted?
thermal (heat)
Name 3 sources of renewable energy
wind, solar, wave, tidal, geothermal
What type of energy is transferred around a circuit?
electrical
What is the name of the energy store when objects are up high?
gravitational (potential) energy
Any source of light has ........................... energy.
light
When you burn coal, the chemical energy is transferred as what type of energy?
thermal(heat) + light
Can energy be created?
No. It can only be transferred or changed.
Oil and petrol have what type of energy?
chemical energy
Any object that is moving has what kind of energy?
kinetic energy
What type of energy is in food?
chemical Energy
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.
What is potential energy?
Energy that is stored
What type of potential energy does a wrecking ball use?
gravitational