Electric Charges & Energy
How is an electrical charge produced?
When an atom gains or loses electrons.
What are the three main components of a simple circuit?
Power source, load, conductor.
What is a conductor?
A material that allows electricity to flow through it.
Name one renewable energy source.
Solar, wind, hydro, geothermal, or biomass.
Which sector uses the most electricity in Canada?
Industrial sector.
What happens when there are more electrons than protons in an atom?
It becomes negatively charged.
What type of circuit has only one path for electrons to flow?
Series circuit.
What is an insulator?
A material that stops the flow of electricity.
Name one non-renewable energy source.
Coal, oil, gas, or petroleum.
What device provides the power in a circuit?
Battery or power source.
What is an example of energy transformation?
Example: electrical → thermal in a toaster.
What type of circuit has more than one path?
Parallel circuit.
Give one example of each a conductor and insulator.
Conductor: copper; Insulator: rubber.
What type of energy uses water to generate electricity?
Hydro power.
Which of the following is not a fossil fuel: Gas, Coal, Solar, Petroleum?
Solar.
What type of energy transformation happens in a hydrodam?
Mechanical (moving water) → electrical.
Why does an entire strand of Christmas lights go out when one bulb burns out?
It’s a series circuit, one break stops the flow.
Why are copper wires coated in plastic?
To prevent electricity from escaping the wire.
Which energy source uses heat from the Earth’s crust?
Geothermal.
What type of circuit powers most homes?
Parallel circuits.
What’s the main difference between static and current electricity?
Static stays in one place; current flows through a circuit.
What’s the difference between a series and parallel circuit?
Series = one path; Parallel = multiple paths for current.
What happens if you use a frayed charging cable?
It’s unsafe, risk of electric shock or fire.
Why is renewable energy better for the environment?
It produces fewer emissions and can be replenished naturally.
What is energy conservation?
Using only the energy needed and avoiding waste.