Flashcards in Electricity Deck (39):
What is electrons ability to move?
What is the force exerted by an electron on anything that has an electric charge?
What is the force that pushes electrons?
Opposite charges attract or repel?
Like charges attract or repel?
What is it when a material has an excess of a lack of electrons?
What is the movement of electrons to relieve a separation in charge?
What moves electrons through wire?
What is material that allows electrons to move through it easily?
In a conductor are electrons loosely held or tightly held?
What are examples of conductors?
Metals like copper and silver
What is material that doesn't allow electrons to move through it easily?
In a insulator are electrons loosely held or tightly held?
What are examples of insulators?
Plastic, wood, rubber, and glass
What happens as water/electrons move?
They can do work
What is the amount of potential energy (pressure) stored in the electrons?
Voltage Potential Difference
What does a large separation of charge do?
It creates high voltage
What is the "pump" for electrons?
What is a closed path through which electrons can flow?
What is a circuit that is complete, where electrons can flow?
What is a circuit where the continuity has been broken by an interruption in the path for electrons to flow?
What is an electric circuit offering little or no resistance to the flow of electrons?
Why is a short circuit dangerous?
The high currents encountered can cause large amounts of heat energy to be released
What is a source of electricity?
What will open or close the circuit?
What converts electrical energy into light?
What is a series circuit?
A current travels in a single path
What stops the flow of current in a series circuit?
What happens to a series circuit as lights are added?
It gets dimmer
What is a parallel circuit?
A current travels in multiple paths
Which path do parallel circuit usually take?
The path of least resistance
What is the measure of the opposition to the flow of electrons?
What is the uniform flow of electrons through a circuit?
What is Ohms Law?
Voltage = Current x Resistance
The amount of work to be done in a certain amount of time
What is the symbol and unit of measurement for current?
2. Ampere - AMP
What is the symbol and unit of measurement for voltage?
What is the symbol and unit of measurement for resistance?