Gr 8 Natural Sciences Ch 3.2: Circuits and current electricity

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What is the primary function of a resistor in an electric circuit?

To increase the flow of current

To act as a switch and control the flow of current

To provide energy to the circuit

To convert electrical energy into other forms of energy (correct)

What type of electrons carry electric charge in metals?

Bound electrons

Stationary electrons

Static electrons

Delocalized electrons (correct)

What is the purpose of a switch in an electric circuit?

To increase the voltage in the circuit

To open or close the circuit, controlling the flow of current (correct)

To reduce the resistance in the circuit

To decrease the current in the circuit

What is required for an electric circuit to function?

A complete, closed pathway Signup and view all the answers

What is the term for the flow of electric charge through a conductor?

Electric current Signup and view all the answers

What is the primary function of a conductor in a circuit?

To allow the flow of electric current Signup and view all the answers

What component of a circuit provides energy to the circuit?

Energy source Signup and view all the answers

What is the term for the pathway that allows the flow of electric current?

Electric circuit Signup and view all the answers

What is the purpose of a switch in a circuit?

To control the flow of current Signup and view all the answers

What happens when a circuit is open?

The flow of current is prevented Signup and view all the answers

What is the purpose of the negative terminal of a cell?

To provide a path for electrons to flow from the cell Signup and view all the answers

What is a characteristic of a series circuit?

Components are connected end-to-end Signup and view all the answers

What happens when one component fails in a series circuit?

The entire circuit is broken Signup and view all the answers

What is a characteristic of a parallel circuit?

Components are connected in multiple paths Signup and view all the answers

What happens when one component fails in a parallel circuit?

The current can still flow through the other paths Signup and view all the answers

What is the result of a closed circuit?

The bulb lights up Signup and view all the answers

What is the primary function of an energy source in an electric circuit?

To provide energy to the circuit and drive the current Signup and view all the answers

What is the term for the electrons that carry electric charge in metals?

Delocalized electrons Signup and view all the answers

What is the purpose of a load in an electric circuit?

To convert electrical energy into other forms of energy Signup and view all the answers

What is necessary for an electric current to flow through a circuit?

A closed pathway Signup and view all the answers

What is the term for the movement of electric charge through a conductor?

Electric current Signup and view all the answers

What type of pathway is necessary for an electric current to flow?

Closed pathway Signup and view all the answers

What is the purpose of a conductor in an electric circuit?

To connect the different components of the circuit Signup and view all the answers

What is the result of connecting a source of energy to a circuit?

The electrons move in the same general direction Signup and view all the answers

What is the primary function of a light bulb in a simple circuit?

To convert electrical energy into light energy Signup and view all the answers

What is the result of a break in the pathway of an electric circuit?

The circuit becomes open Signup and view all the answers

In a series circuit, what happens to the current if one component fails?

The entire circuit is broken Signup and view all the answers

What is the purpose of a wire in a simple circuit?

To conduct the current between the components Signup and view all the answers

What is the difference between a conductor and an insulator?

A conductor allows the flow of current, while an insulator does not Signup and view all the answers

What is required to build a simple circuit?

A battery, a switch, a wire, and a light bulb Signup and view all the answers

What is the characteristic of a parallel circuit?

Components are connected across common points Signup and view all the answers

What happens when you close the switch in a simple circuit?

The circuit becomes closed Signup and view all the answers

Which of the following is NOT a type of component in an electric circuit?

Insulator Signup and view all the answers

What is the primary function of a conductor in an electric circuit?

To allow the flow of electric charge Signup and view all the answers

What type of energy is converted by a load in an electric circuit?

Electrical energy into thermal energy Signup and view all the answers

What is necessary for an electric current to flow through a circuit?

A source of energy and a closed pathway Signup and view all the answers

What happens when a source of energy is connected to a circuit?

The electrons move in the same general direction Signup and view all the answers

What is a characteristic of delocalized electrons?

They are free to move within the metal Signup and view all the answers

What is the purpose of a terminal in an electric circuit?

To provide energy to the circuit Signup and view all the answers

What is the result of having multiple components in a circuit?

The circuit becomes more complex Signup and view all the answers

What is the main difference between a conductor and an insulator?

Conductors allow the flow of electric current, while insulators do not. Signup and view all the answers

What is the purpose of the light bulb in a simple circuit?

To convert electrical energy into light energy Signup and view all the answers

What happens when a switch is open in a circuit?

The circuit is broken, and current does not flow Signup and view all the answers

What is a characteristic of a series circuit?

If one component fails, the entire circuit is broken Signup and view all the answers

What is necessary to build a simple circuit?

A wire, a battery, and a light bulb Signup and view all the answers

What is the result of a closed circuit?

The circuit is complete, and current flows through the circuit Signup and view all the answers

What is the purpose of the wires in a simple circuit?

To connect the components together Signup and view all the answers

What is the characteristic of a parallel circuit?

Multiple paths for the current to flow Signup and view all the answers

What is the primary function of a delocalized electron in a metal?

To carry electric charge Signup and view all the answers

What is the purpose of a conductor in an electric circuit?

To allow the flow of electric current Signup and view all the answers

What is the primary function of a switch in a circuit?

To control the flow of current Signup and view all the answers

What is the primary function of a load in an electric circuit?

To convert electrical energy into another form of energy Signup and view all the answers

What is necessary for an electric current to flow through a circuit?

A source of energy and a closed pathway Signup and view all the answers

What is the term for the movement of electric charge through a conductor?

Electric current Signup and view all the answers

What type of pathway is necessary for an electric current to flow?

A closed pathway Signup and view all the answers

What is the result of connecting a source of energy to a circuit?

Electric current flows through the circuit Signup and view all the answers

What is the primary characteristic of a material that allows it to be used as a conductor in an electric circuit?

It has a low resistance to electric current Signup and view all the answers

What is the main difference between a series circuit and a parallel circuit?

The pathways through which the current flows Signup and view all the answers

What happens to the current in a circuit when the switch is closed?

The current starts flowing Signup and view all the answers

What is the primary function of a light bulb in a simple circuit?

To convert electrical energy into light energy Signup and view all the answers

What is the result of a break in the pathway of an electric circuit?

The current stops flowing Signup and view all the answers

What is the primary function of the wires in a simple circuit?

To conduct the current between the battery, switch, and bulb Signup and view all the answers

What is the characteristic of a conductor that allows it to be used in a circuit?

Low resistance to electric current Signup and view all the answers

What happens when a component fails in a parallel circuit?

The current can still flow through the other paths Signup and view all the answers

Gr 8 Natural Sciences Ch 3.2: Circuits and current electricity

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Questions and Answers

What is the primary function of a resistor in an electric circuit?

What type of electrons carry electric charge in metals?

What is the purpose of a switch in an electric circuit?

What is required for an electric circuit to function?

What is the term for the flow of electric charge through a conductor?

What is the primary function of a conductor in a circuit?

What component of a circuit provides energy to the circuit?

What is the term for the pathway that allows the flow of electric current?

What is the purpose of a switch in a circuit?

What happens when a circuit is open?

What is the purpose of the negative terminal of a cell?

What is a characteristic of a series circuit?

What happens when one component fails in a series circuit?

What is a characteristic of a parallel circuit?

What happens when one component fails in a parallel circuit?

What is the result of a closed circuit?

What is the primary function of an energy source in an electric circuit?

What is the term for the electrons that carry electric charge in metals?

What is the purpose of a load in an electric circuit?

What is necessary for an electric current to flow through a circuit?

What is the term for the movement of electric charge through a conductor?

What type of pathway is necessary for an electric current to flow?

What is the purpose of a conductor in an electric circuit?

What is the result of connecting a source of energy to a circuit?

What is the primary function of a light bulb in a simple circuit?

What is the result of a break in the pathway of an electric circuit?

In a series circuit, what happens to the current if one component fails?

What is the purpose of a wire in a simple circuit?

What is the difference between a conductor and an insulator?

What is required to build a simple circuit?

What is the characteristic of a parallel circuit?

What happens when you close the switch in a simple circuit?

Which of the following is NOT a type of component in an electric circuit?

What is the primary function of a conductor in an electric circuit?

What type of energy is converted by a load in an electric circuit?

What is necessary for an electric current to flow through a circuit?

What happens when a source of energy is connected to a circuit?

What is a characteristic of delocalized electrons?

What is the purpose of a terminal in an electric circuit?

What is the result of having multiple components in a circuit?

What is the main difference between a conductor and an insulator?

What is the purpose of the light bulb in a simple circuit?

What happens when a switch is open in a circuit?

What is a characteristic of a series circuit?

What is necessary to build a simple circuit?

What is the result of a closed circuit?

What is the purpose of the wires in a simple circuit?

What is the characteristic of a parallel circuit?

What is the primary function of a delocalized electron in a metal?

What is the purpose of a conductor in an electric circuit?

What is the primary function of a switch in a circuit?

What is the primary function of a load in an electric circuit?

What is necessary for an electric current to flow through a circuit?

What is the term for the movement of electric charge through a conductor?

What type of pathway is necessary for an electric current to flow?

What is the result of connecting a source of energy to a circuit?

What is the primary characteristic of a material that allows it to be used as a conductor in an electric circuit?

What is the main difference between a series circuit and a parallel circuit?

What happens to the current in a circuit when the switch is closed?

What is the primary function of a light bulb in a simple circuit?

What is the result of a break in the pathway of an electric circuit?

What is the primary function of the wires in a simple circuit?

What is the characteristic of a conductor that allows it to be used in a circuit?

What happens when a component fails in a parallel circuit?

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