Energy
What two forms of energy are used when a person rings a bell?
Mechanical (Person, Button, and Hinge) -- Sound (Ring)
The path through which electricity flows is called what?
A circuit
A type of energy that is replenished and recreated.
Renewable energy
A person gets their energy from this.
food and sleep
When energy moves from one place to another this is called __________.
energy transfer
What three forms of energy are used when singing into a microphone?
Electrical (Plug) -- Mechanical (Buttons) -- Electrical (inside of microphone) -- Sound (your voice)
A circuit that has everything connect and looks complete is called a ___________.
A closed circuit
Three examples of renewable energy are
wind, solar, and hydropower (water)
The faster an object moves, the more _________ energy it has.
What is the difference between potential and kinetic energy?
Potential energy is stored energy.
Kinetic energy is energy in motion (moving energy).
What three forms of energy are used when lighting a birthday candle?
Mechanical (person) -- Chemical (wax) -- Light/Heat
or Mechanical --Light/Heat (match) --Chemical --Light/Heat
-battery
-Wires
-light bulb
Battery: chemical
Wires: electrical
Light bulb: heat and light
When an object hits or crashes into another object this is called a ___________.
collision
Why are fossil fuels bad for us?
It create pollution and causes health problems
Why is the first hill of a roller coaster the tallest?
The higher the hill, the more potential energy is stored. You need the greatest amount of potential energy to give you enough momentum for the whole ride.
What forms of energy are used when blow-drying your hair?
Electrical (Plug) -- Mechanical (buttons) -- Heat or Wind
Terminals
The part of a light bulb that produces light.
High pitched sounds create ________ lengthed waves.
Low pitched sounds create _________ lengthed waves.
Choices: short and long
High: short waves
Low: long waves
Name the six different forms of energy
Electrical, sound, light, mechanical, chemical, and heat
(Solar, wind, water, and fossil fuels can count!)
What two forms of energy are used during archery?
Mechanical (Person pulling bow back) -- Kinetic (moving bow and arrow)
Why is my circuit and light bulb not working?
This circuit will not light a bulb. It is incomplete and open circuit that does not connect pathways.
Energy and sound produce _______ that we can't see but are always traveling.
Waves
Can energy be created or destroyed?
No, energy can only be transferred from one place to another or change forms. It cannot just vanish or die out.