FREE PHYSICAL SCIENCE AND STUDY GAMES ABOUT B

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W ELECTRICITY EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -25 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Energy

Answer:

The ability to do work or cause change

Question 2: Short circuit

Answer:

A connection that allows current to take the path of least resistance.

Question 3: Resistance

Answer:

The measure of how difficult it is for charges to flow through an object.

Question 4: Electric field

Answer:

Region around a charged object where the object's electric force is exerted on other charged objects.

Question 5: Series circuit

Answer:

Circuit that has only one path for the current to take.

Question 6: Polarization

Answer:

The process through which electrons are attracted to or repelled by an external electric field, causing the electrons to move within their own atoms.

Question 7: Power

Answer:

The rate at which energy is transformed from one form to another.

Question 8: Conduction

Answer:

The transfer of electrons from one object to another by direct contact.

Question 9: Electric force

Answer:

The force between charged objects.

Question 10: Ohm's Law

Answer:

States that the resistance in a circuit is equal to the voltage divided by the currrent.

Question 11: Friction

Answer:

The transfer of electrons from one object to another by rubbing the objects together.

Question 12: Electric circuit

Answer:

A complete, unbroken path that charges can flow through.

Question 13: Insulator

Answer:

A material that does not allow electrons to flow.

Question 14: Electric current

Answer:

The continuous flow of electric charges through a material.

Question 15: Circuit breakers

Answer:

Switches that bend away from a circuit as they heat up; can be reset if triggered.

Question 16: Potential energy

Answer:

Stored energy that results from the position or shape of an object.

Question 17: Conservation of charge

Answer:

Law stating that charges are neither created nor destroyed.

Question 18: Induction

Answer:

When the electric field of one object causes a transfer of electrons from one part to another in the second object without the two objects touching.

Question 19: Fuses

Answer:

Devices that prevent circuits from overheating; melt if they get too hot; break the circuit.

Question 20: Static electricity

Answer:

The buildup of charges on an object.

Question 21: Static discharge

Answer:

The loss of static electricity as electric charges tranfer from one object to another.

Question 22: Parallel circuit

Answer:

Circuit in which there are several paths for the current to take.

Question 23: Force

Answer:

A push or a pull exerted on an object

Question 24: Conductor

Answer:

A material through which a charge can flow easily.

Question 25: Voltage

Answer:

The difference in electric potential energy per charge between two points in a circuit.