Potential or Kinetic
Is the stored energy and the energy of position (gravitational)
Potential
The important thing about energy is that it can be transferred between kinetic and potential but the total _____________ stays the same.
Mechanical
What is considered a simple machine?
A machine with one or no moving parts
What type of loop do circuits need to work?
closed
How do simple machines make work easier?
changing the direction, force, or speed of movement
The energy in motion. it is the motion of waves, electrons, atoms, molecules and substances.
Kinetic
If you have a pendulum with Potential energy of 25 and Kinetic energy of 25 what is the total mechanical energy?
50
What does a simple machine give you?
mechanical advantage
If a circuit is closed, what would happen if you open it?
stop working
What is when two objects push or pull on each other over a distance?
work
Chemical energy is an example of this form of energy.
Potential
How can you increase the mechanical energy of an object?
Increase the potential energy
Which simple machine would most likely be used to move an object over great distances and on a flat surface?
wheel and axle
What are the two types of circuits?
(we drew pictures of them with the Christmas lights)
series and parallel
What type of simple machine are your teeth?
wedges
Electrical energy is this form of energy (electricity is the movement of electrons)
Kinetic
How does the mechanical energy of a rock change as it falls from a mountain?
It doesn't change (potential is changed to kinetic)
What purpose does a fulcrum serve on a lever?
Pivot point
In a circuit what is another word for the item you are powering (such as the light, fan, etc.)
load
What is the power that an object gets from its position and motion?
mechanical energy
When is kinetic energy at its max?
When potential is at 0
How does a wind turbine produce energy?
It converts the wind's kinetic energy into mechanical energy
Simple machines make work easier. What do they need from an person?
Work/effort/force
(any of the above words)
What is the difference in a series circuit and a parallel circuit
The path of electricity
What is the law of conservation of energy?
Energy can neither be created nor destroyed