Convert Energy vs. Transfer Energy
MAGNETS!
Conductors vs. Insulators
Electrical Circuits
BONUS!
100
What does it mean to convert energy?
Convert= Change one form of energy into a new form of energy.
100
Every magnet has 2 what?
Poles: north and south
100
What does it mean to conduct electricity?
Allow electricity to flow or move through
100
What three materials are needed to create your own circuit?
Source of energy, metal wire, and machine requiring electric energy (light bulb, motor, etc)
100
Move your hands and clap them together! What type of energy did you begin with? What type did you convert to?
Mechanical converted to sound energy
200
Give one example of a situation we have seen in which energy is converted.
When we used circuits, we converted chemical energy into electric energy AND electric energy into mechanical energy
200
Opposite poles of a magnet.....
attract!
200
What is an insulator?
A material that does NOT let electricity flow through
200
A circuit with wires that do not touch the battery is called...
an open circuit.
200
What object is the best conductor of electricity? Iron nail or rubber band?
Iron nail!
300
What does transfer of energy mean?
When the same energy moves from one place to another place.
300
What does attract and repel mean?
Attract= pull together/stick Repel= push away/ resist
300
What would happen if you connect the wires on an electric circuit to a piece of wood? Why?
The circuit would not work and electricity would not be able to flow to power the machine because wood is an insulator!
300
A circuit with wires that touch the battery is called...
Closed circuit
300
Explain why you feel two magnets pushing away from each other?
Their same poles are repelling each other
400
Give one example of the transfer of energy we have seen
When we use circuits and electric energy transfers along the metal wire.
400
Which situation will create the STRONGEST magnetic attraction and why? A. Magnet is 4 cm away from metal object B. Magnet is 4 inches away from metal object C. Magnet is 4 yards away from metal object D. Magnet is 4 miles away from metal object
A. because it is closest to the object. Decreasing distance creates a stronger attraction!
400
What kind of material would be best to connect to the wires of an electric circuit and why? A. Plastic spoon B. Rubber band C. Metal ring
C. the metal ring because it is a great CONDUCTOR!
400
When our lights are turned on. What kind of circuit is inside our walls?
Close circuit
400
When do magnets attract each other?
When their opposite poles are facing one another.
500
When a battery powers a motor. You start with ___________ energy, which is converted into__________ energy and then converted to ___________ energy.
Chemical--> Electric--> Mechanical
500
What kinds of materials are magnets attracted to?
Metals like iron, cobalt and nickel
500
Why do you think that a pot with a metal handle feels the hottest on your hand compared to one with a wooden handle?
Metal conducts heat really well too! And the heat will transfer easier to your hands!
500
If you have two circuits and two machines connected to each other, how can you make it so you only power one machine?
Connect the wires only to that one machine!
500
What types of objects are most likely attracted to a magnet?
Certain metal objects
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