Static Electricity
Electricity is due to the movement of ______
Electrons
Which of the following describes " how much the electrons slow down"
Resistance
When wool is rubbed with gold, which way is the electrons moving ?
From Wool to gold
An alarm clock draws 0.5 A of current when connected to a 120 volt circuit. Calculate its resistance.
R = V/I
= 120V/0.5A
=240 ohms
What unit do we use to measure current ?
When two like charges get close to each other, they will ________
Repel
Which of the following describes "how fast the electrons are going"
Current
Using the electrostatic series, what'd be the charge of the following items after rubbing them against each other.
-Human Hair
-Wool
Human Hair: Positive (relatively)
Wool: Negative (relatively)
If a toaster produces 12 ohms of resistance in a 120-volt circuit, what is the amount of current in the circuit?
I = V/R
=120V/12 ohms
= 10A
material that does NOT allow electricity to flow easily through it called
Insulator
When a positive charge and a negative charge are together, they will _________
attract
The part of a circuit that controls the movement of electrons (whether they move or not)
What is a switch?
Using the electrostatic series, what'd be the charge of the following items after rubbing them against each other.
-Rubber Balloon
-Wool
Rubber Balloon: Negative
Wool: Positive
A light bulb has a resistance of 5 ohms and a maximum current of 10 A. How much voltage can be applied before the bulb will break?
V = I x R
=10A x 5 ohms
= 50 V
A material that allows for the flowing of electron(s) is called a ________
conductor
a negatively charged balloon and a neutral wall will...
Attract
the 4 main parts of any circuit are:
Switch, load, battery, and connector wires
When silk and cotton are rubbed together, who'd have the lower electron affinity ?
Silk
What is the resistance of a circuit with a voltage of 10V and 5A of current ?
R = 2Ω
How many path(s) can an electron take in a series circuit ?
Just one
When a positive charge and a neutral charge are together, they will ________
Attract
The total ________ in a series circuit is always the same.
The total ________ in a parallel circuit is always the same.
Current (I)
Voltage (V)
When glass is rubbed with plastic, what would be the charge of the plastic after ?
Negatively charged
What happens to the current in a circuit if the resistance is increased from 10Ω to 20Ω ?
The current will decrease and be reduced by half.
What kind of circuits do we have for your home appliances (series or parallel ) ?
Parallel. Because if one of your light goes out, the other lights can still work.