Circuits Circus!
How many paths are in a series circuit?
One
Which part of the atom has a negative charge?
Electron
What is the equation for Ohm's Law?
V=IR
What is resistance?
Resistance is how difficult it is for electric current to flow
A material is an insulator if
electrons cannot easily move through the material
How many paths are in a parallel circuit?
More than one
When an atom has an equal number of protons and electrons it is considered
Electrically neutral
What is Ohm's Law
Ohm's law is the explanation of the relationship between voltage, current, and resistance.
What is voltage?
The amount of energy transformed into other forms of energy
A material is a conductor if
electrons can easily move through the material
Does current flow if a circuit is open?
No
open = broken
(unless it's a parallel circuit with multiple paths to follow)
What is an electric charge?
A static or unbalanced charge on an object
According to Ohm's law, if the voltage increases
the current in the circuit also increases
Electric current is measured in
Amperes
What are 3 ways in which electric charges can be transferred
Contact, induction, conduction
What are the three parts of an electric circuit?
Source, devices, conductors
How can objects have an electric charge?
When an object gains or loses electrons
According to Ohm's law, if resistance increases
the current in the circuit decreases
An electric current will follow the path of...
least resistance
A battery connected to conductors that turn on a lightbulb is which sequence of energy transformation?
Chemical to electric to radiant
Will adding devices to a series circuit increase or decrease the resistance?
increase resistance, because the current in the circuit decreases
The electric field applies an _______________ to other charged objects.
Electric force
According to Ohm's law, if the resistance decreases
the voltage in the circuit also decreases
V = IR
I = 0.1 amperes
R = 50 ohms
V = ?
5 volts
This equals one coulomb of electrons flowing past a point in a circuit every second
One ampere of current