Atoms
What is a resistor?
D. Resistricts the flow of electrons. A material that slows or resists, but doesn't stop the flow of the current.
What do opposite charges do?
a. attract each other
b. repel each other
a. Attract each other.
A circuit that does not have a complete connection between the two sides of the power source. As a result, current does not flow.
a. open
b. closed
c. short
a. open
What is the most popular conductor material in our homes?
Copper
What is an example of an insulator?
plastic, rubber, glass, ceramic, dry wood, and fiberglass. Other insulators include dry air, paper, diamond, and Styrofoam
What do like charges do?
a. attract each other
b. repel each other
b. Repel each other.
An electrical path for current electricity is called a ______
circuit
Which of the following statements accurately describes electrons in the context of electric current?
a. electrons are positively charged particles that flow in a circuit
b. electrons are neutral particles that do not contribute to electric current
c. electrons are negatively charged particles that move through conductors
d. electrons are particles that only exist in insulators
c. electrons are negatively charged particles that move through conductors
Inside each atom (but not in the nucleus) is a smaller part called what?
Electrons
What is a conductor?
A material that currents can pass through easily.
What is an electric current? Explain in one sentence
The steady flow of electricity.
True or False: A complete circuit through which electricity flows is called an open circuit
Double point option: if you choose false, write the name of the right answer
False
Closed
Electrical charges moves from _________ to _________ terminals
negative to positive
What is an example of a conductor?
copper, silver, gold, aluminum, iron, and steel.
Other conductive materials include graphite, salt water, and mercury
Electric current moves from ___________ voltage to ___________ voltage
Electric current moves from HIGHER voltage to LOWER voltage
A circuit with more than one path for current flow.
parallel
______ is a coil that has a soft iron core and acts as a magnet when an electric current is in the coil
hint: we made one in lab
electromagnet
What are three things that are in an atom?
Must have all of them
Protons, neutrons, and electrons.
What is an insulator?
A material that current cannot pass through easily.
Lightning strikes occur when ____________ charges at the ground attract negative charges at the bottom of a storm cloud.
Lightning strikes occur when POSITIVE charges at the ground attract negative charges at the bottom of a storm cloud.
What is a series circuit?
A circuit that has only one path for the current.
A safety device that melts and breaks the circuit if the current exceeds a certain value.
Fuse