Electrical Charges
The two types of electrical charges.
What is positive and negative.
An action taken when circuits do not work properly/as planned.
What is troubleshooting?
A south and a south (like poles) on a magnet will _____ each other.
What is repel?
Patterns of lines that act like wires and carry electricity to different parts of a device.
(Hint: found in computers, calculators, and other machines)
What is circuit board?
Light bulbs demonstrate the conversion/changing of ______ energy into ______ energy.
What is _electric_ into _light/heat_.
Like charges _____.
Opposite charges _____.
What is.. Repel, Attract.
The continuous path along which electrical currents (electrons) flow.
What is a circuit?
An electrical circuit that produces a magnetic field.
What is an electromagnet?
Describe 2 unsafe electrical situations.
(Note: If you can describe 4 unique unsafe situations, you can have an extra point)
(Many Answers).. What is:
-Plugging too many devices into one outlet and blowing a fuse.
-Frayed cords causing shocks or fire.
-Electrocution through metal objects becoming part of the circuit.
-Using electrical devices near water.
A material that does not allow electricity to flow through.
What is insulator?
BONUS: Give an example of 3 insulators.
A variable that can be changed/adjusted to produce a different outcome.
What is manipulated variable?
All the electrical charges flow in the same direction along a single path. It can have two or more loads.
What is series circuit?
A region/area of magnetic force.
What is magnetic field?
On the white board, please draw a simple circuit using the proper symbols. Should include:
-A D-Cell battery (labelled positive/negative)
-A lamp
-A switch
-Wires
(Based on science text)
The three central components of a D-cell battery.
What are
1. positive terminal
2. negative terminal
3. case
____ lets electricity pass through it easily, whereas ____ does not allow electricity to pass through.
What is a conductor and an insulator?
A circuit in which the electrical current flows through more than one path.
What is parallel circuit?
Device that measures currents of electricity in amperes (amps).
What is ammeter?
The ability of a substance to oppose or slow down electrical current.
What is resistance?
A complete, unbroken circuit.
What is closed circuit?
The number of electrons that pass a point per second.
Hint: Measured in amps (A).
What is current.
When electricity takes the path of ________ for more than a few minutes, the wires can overheat and cause a ___________.
What is least resistance and short circuit?
A device used to detect and measure electric currents.
(Hint: it has a needle and a dial)
What is galvanometer?
Component of a complete circuit that can control the power flow.
What is a switch?
The four central components of a light bulb.
(Note: Do not need to mention ceramic)
What is...
1. Lead tip
2. Filament
3. Lead contact
4. Threaded metal base