Basic Electrical

an electric charge developed when an object contains more protons than electrons.

• Positive Charge

• Negative Charge

• Neutral Charge

• All of the above

one polarity of a voltage, current, or charge.

• Positive Charge

• Neutral Charge

• Negative Charge

• None of the above

a material used to electrically isolate two conductive surfaces.

• Wire

• Conductors

• Semiconductors

• insulators

a device or material that permits current to flow through it easily.

• Semiconductor

• Atom

• Nuclus

• Conductor

• None of the above

The ________ theory states that current flow is produced when an electron from one atom knocks electrons of another atom out of orbit.

• charge

• attraction

• bump

• pull

Tags

NGSS.MS-PS2-3

What is the unit of electric current?

• Ampere

• Volt

• Ohm

• Watt

Which of the following materials is a good conductor of electricity?

• Rubber

• Glass

• Copper

• Wood

What is the formula for calculating electrical power?

Which device is used to measure electric current?

• Voltmeter

• Ammeter

• Ohmmeter

• Thermometer

What is the resistance of a conductor if the current flowing through it is 2A and the voltage across it is 10V?

• 5 Ohms

• 10 Ohms

• 20 Ohms

• 2 Ohms