Electricity
What does the voltage- current graph look like for something Ohmic
Linear
The act of going around. A system that connects electrical devices so they will operate is?
Circuit
A 3-ohm resistor and a 6-ohm resistor are connected in parallel across a 9-volt battery. Which statement best compares the potential difference across each resistor
The potential difference across the 6-ohm resistor is the same as the potential difference across the 3-ohm resistor.
Which theory do engineers and scientists know to be the actual flow of electrons in a circuit?
Electron Flow
Heat is the movement of ______.
thermal energy
_______ is when there is a buildup of charges (more of one type of charge) on an object.
static electricity
What holds the filament in a lightbulb?
Support wires
How many volts are in a circuit with a battery that has a resistance of 10 Ohms and a current of 2 Amps?
20 Volts
What kind of magnet can be turned on and off?
Electromagnet
Hot to Cold
What is the theory that states electricity flows from positive to negative?
Conventional Current
The amount of energy used to move one coulomb of electrons through the circuit is its
Voltage
what is the power of a lamp whose current is 6 A and the voltage across it is 120 V?
720 W
Who first experimented with electricity and had the idea of something flowing inside materials?
Benjamin Franklin
Unit S.I of temperature is
Kelvin
An electric current that continually reverses direction over time is known as a(n)
Alternating Current
What is the function of a circuit breaker in an electrical system?
Detect and cut off excessive current
a pair of 15-watt computer speakers are connected to a 12-volt power supply. what is the electric current running through the speakers?
1.25 A
What is the energy possessed by a charge due to its position in an electric field?
electrical potential energy
Two objects with different temperatures are placed together. Heat transfer will continue until the temperatures are the same. This is called
Thermal Equilibrium
A balloon has a negative charge. A glass rod has a positive charge. What will happen when the rod is brought near the balloon?
the balloon will be attracted to the rod
The scientific name for one battery is _______________________________.
Cell
This circuit has a 24 volt battery and the resistor is 8 ohms. How many amps are running through the circuit?
3 Amps
What is the fundamental value of electron
e=1.60×10−19 C
How does heat energy from the Sun reach Earth?
Radiation