Science 9 Electricity Review (Sc9.3)

A comprehensive set of vocabulary flashcards covering static electricity, current, Ohm's law, circuit components, and energy efficiency based on the Science 9e année curriculum.

Electrostatic

Electric charges that are not in movement.

Electric current

Electric charges in movement.

Coulomb

The unit of measurement for electric charges.

Electric discharge

When an electric charge is removed from an object.

Ampere

The unit of measurement for electric current.

Source

The part of a circuit that provides electrical energy.

Circuit load

The part of a circuit that uses electrical energy to perform work.

Conductor

Copper wires where current flows within an electric circuit.

Switch

A circuit component that allows control over when the current passes.

Voltage (Tension)

The difference between the electric potential energy of two points in a circuit.

Resistance

Property of a substance that opposes the passage of electrons and transforms electrical energy into another form of energy.

Ohm

The unit of measurement for resistance.

Cell (Pile)

A source of electricity that uses chemical energy to produce electrical energy.

Battery

A combination of two or more cells.

Light bulb

An object that transforms electrical energy into light.

Voltmeter

An instrument used to measure voltage.

Ammeter

An instrument used to measure current.

Resistor

A circuit element that has a precise resistance used to control the current in the circuit.

Series circuit

A circuit where all current follows a single path and passes through all components one after the other.

Parallel circuit

A circuit where the current can divide between several paths.

Fuse

A device that protects an electric circuit against excessively high current by melting to break the circuit.

Circuit breaker

A large switch that allows all current in a house to be cut off.

Grounding

A connection of a circuit that transmits current to the earth.

Ohm's Law Formula

$$V = I \times R$$

Energy

The capacity to do work.

Joule

The unit of measurement for energy.

Power

A measurement of the quantity of energy used in a specific amount of time.

Watt

The unit of measurement for power.

Kilowatt-hour

A unit of measurement for large quantities of energy, representing the energy used by one kilowatt of power in one hour.

Efficiency (Rendement)

The percentage of an energy conversion that is in the desired useful form.

Consumed energy

The electrical "input" energy used by an electrical device.

Produced energy

The desired useful "output" energy provided by an electrical device.

Generator

A machine composed of a magnet and a coil of electric wire that transforms kinetic energy into electrical energy.

Energy Calculation Formula

$$E = P \times t$$

Efficiency Formula

$$\text{Efficiency} = \frac{\text{Produced Energy}}{\text{Consumed Energy}} \times 100$$