Electricity Quiz

A/An __________________ is a closed path that electric current follows.

• electric plug

• electric wire

• electric switch

• electric circuit

Answer explanation

An electric circuit is a closed path that allows electric current to flow. Unlike an electric wire, switch, or plug, which are components of a circuit, the circuit itself is the complete loop necessary for current to travel.

____________________ is the accumulation of excess electric charge on an object.

• Thermal conduction

• Kinetic energy

• Static electricity

• Magnetic flux

Answer explanation

Static electricity is the accumulation of excess electric charge on an object, resulting from an imbalance of electrons. This distinguishes it from kinetic energy, thermal conduction, and magnetic flux, which are unrelated concepts.

The ________________________________ states that charge can be transferred from object to object but it cannot be created or destroyed.

• law of conservation of energy

• law of conservation of charge

• law of conservation of mass

• law of conservation of momentum

Answer explanation

The law of conservation of charge states that charge can be transferred between objects but cannot be created or destroyed, making it the correct choice for this statement.

An __________________ surrounds every electric charge and exerts the force that causes other electric charges to be attracted or repelled.

• electric field

• magnetic field

• gravitational field

• nuclear field

Answer explanation

An electric field surrounds every electric charge and is responsible for the forces that attract or repel other charges. This makes 'electric field' the correct answer, as it directly relates to the behavior of electric charges.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

A/An __________________ is a material through which electrons move easily.

• Resistor

• Insulator

• Semiconductor

• Conductor

Answer explanation

A conductor is a material that allows electrons to move easily, facilitating the flow of electric current. In contrast, insulators restrict electron movement, while semiconductors have properties between conductors and insulators.

A/An __________________ is a material in which electrons are not able to move easily.

• insulator

• conductor

• semiconductor

• superconductor

Answer explanation

An insulator is a material that does not allow electrons to move freely, making it difficult for electricity to flow. In contrast, conductors allow easy electron movement, while semiconductors and superconductors have varying conductivity.

__________________ is the process of transferring charge by touching or rubbing.

• Charging by induction

• Charging by contact

• Charging by friction

• Charging by conduction

Answer explanation

Charging by contact is the process of transferring charge through direct touch or rubbing between two objects. This distinguishes it from induction and conduction, which involve different mechanisms of charge transfer.

When a nearby charged object causes the rearrangement of electrons on a neutral object, it is called __________________.

• charging by induction

• charging by conduction

• static discharge

• polarization

Answer explanation

When a charged object is near a neutral object, it causes the electrons in the neutral object to rearrange, leading to a temporary charge separation. This process is known as charging by induction.

A/An __________________ is a device that can detect electric charge.

• ammeter

• voltmeter

• electroscope

• ohmmeter

Answer explanation

An electroscope is specifically designed to detect electric charge, while a voltmeter measures voltage, an ammeter measures current, and an ohmmeter measures resistance. Therefore, the correct answer is electroscope.

__________________ is the net movement of electric charges in a single direction.

• Magnetic field

• Electric current

• Static electricity

• Electromagnetic wave

Answer explanation

Electric current is defined as the net movement of electric charges in a single direction, making it the correct answer. Other options like magnetic field, static electricity, and electromagnetic wave do not fit this definition.