Electrical Energy
An object that is positively charged
has more protons
Like poles repel or attract
repel
The flow of charged particles is called an
electric current
A dc battery provides what type of energy?
Potential Energy
What is an electromagnet
a magnet that runs on electricity
When is the switch on when it's open or closed
closed
How many poles do all magnets have
two
A lightbulb is connected to a voltage source in a circuit. The circuit has a switch. If the light bulb is lit and the switch is then opened, the light bulb will
go out
The greater the voltage of the battery the greater the energy or the smaller the energy?
The greater the energy
What is a electric circuit
a pathway where charged particles can move freely in a complete path.
What property increases when it is made thinner
resistance
When a current-carrying wire is wrapped around an iron core, what can it create
a magnet
An electrical device that can control the flow of current in an electrical circuit is called a
resistor
Does the volume of a battery determine how much energy is in a battery?
No
What is a galvanometer
a device for detecting or measuring small electric currents.
What surrounds electric charge that causes them to affect each other though they are not touch
An electric field
What prevents most charged particles from the sun from hitting Earth
Earth's magnetic field
Which device is used to detect and measure small electric currents?
galvanometer
Batteries produce what type of current
Direct currents
What is a parallel circuit
a closed circuit in which the current divides into two or more paths before recombining to complete the circuit.
electrical to kinetic
Why does the needle of a compass point to magnetic north?
The compass needle aligns itself with Earth's magnetic field
An effective conductor in an electrical circuit
produces a flow of charge
A dry-cell battery, current goes from which terminal to which
from the negative terminal to the positive on
What is a generator
a device that converts mechanical energy into electrical energy using the motion of a magnet inside a coil of wire.