This is the continuous path along which current can flow.
What is a circuit?
This would be the number of batteries represented by the diagram below.

What is 2? The longer line represents the positive terminal and the shorter line represents the negative.
This is the SI unit for charge.
What is the coulomb (C)?
This is the build up of unbalanced charges in an item such as a sweater in the dryer, a storm cloud, or your hair after a comb is pulled through it.
What is static electricity?
This will happen if the magnets below are moved toward one another.
What is attraction? Since the two poles are opposite (positive and negative) the magnets will be attracted or stick together.
This term describes a circuit such as the one below that has an opening or break.
What is an open circuit? If there is no break, it would be a closed circuit. Energy will NOT flow through an open circuit but will flow through a closed circuit.
This component allows the current flow to be easily stopped or started.
What is a switch?
This type of material allows current to flow through it easily, such as metal.
What is a conductor?
This component would be represented by the symbol shown below when drawing a circuit diagram.

What is a resistor?
These charges would repel one another.
What are positive and positive or negative and negative? Like charges repel, and unlike charges attract.
This type of circuit provides more than one path on which the current can flow.

What is a parallel circuit? If one path is interrupted, the other will continue to work.
This would be the amount of current going through a 20 Ω resistor with a voltage of 120 V.
What is 6 amps?
This type of material, such as rubber, plastic, glass, or wood, resists the flow of current.
What is an insulator?
What is the brightness of the bulbs will decrease? As more resistors are added in a series, the overall current within the circuit decreases. In a parallel circuit, each bulb gets the full voltage.
An object with equal positive and negative charges would be called this.
What is neutral?
This type of circuit has only one path for current and, if one lamp bulb is removed, the current will stop flowing.

What is a series circuit?
A 9 volt battery that produces a current of 0.2A would result in this about of power.
What is 1.8 Watts?
Power = Current x Voltage
An object such as a paper clip that is NOT a magnet but is attracted to a magnet would be called this.
What is a magnetic material? Unlike a permanent magnet, magnetic materials do not attract other items.
This type of current travels in one direction only and is associated with battery powered devices.
What is DC (direct current)?
This picture would best represent the atomic structure of a permanent magnet.

What is the top drawing? Atoms in a permanent magnet are aligned, creating a positive and negative pole.
Electrons flowing along a wire produce an electrical current that can be turned into mechanical energy (motion) by this type of device.
What is an electric motor?
This would be the voltage of the battery in the diagram below.

What is 10 volts?
The current is .5 amps. The resistance is 20 ohms.
.5 amps=voltage/20 ohms of resistance
This type of material can sometimes act as an insulator and sometimes act as a conductor based on the conditions.
What is a semiconductor?
This type of current travels in different directions and would be like the electricity flowing into our homes.
What is alternating current (AC)?
When an electric current is used to cause a magnetic material to act as a magnet, this device has been created.
What is an electromagnet? You can make the electromagnet stronger by adding more coils or increasing the current.
Looking at the diagram below, the part(s) of a bar magnet that exert the greatest amount of magnetic force would be located here.

What is at the poles?
For a particular circuit, the power produced is 100 W. The voltage is 50V. Use this information to calculate the resistance.
What is 25 ohms?
A moving electric charge generates a magnetic field, and this type of device moves a magnet around a coil of wire, or moves a coil of wire around a magnet, to create a current. By doing so, the device changes mechanical energy into electrical energy.
What is a generator?
Two spheres are repeatedly touched with a negatively charged rod. Identify each sphere as a conductor or insulator.

A is an insulator. It does not allow the charges to spread.
B is a conductor. The negative charges are evenly spread all along the surface because they can be transmitted easily in a conductor.
Hamim cuts a magnet into two pieces. Which statement best describes what will happen?
A.) The N pole will be on one piece and the S pole will be on the other.
B.) Each half will now have its own N and S pole.
C.) It will become demagnetized.
What is B?
