Conductors & Insulators
A conductor is an object that _____________ the flow of electricity easily
allows
What is a hypothesis?
An "if...then..." statement
What materials do you need to make a SIMPLE closed circuit?
copper wire, battery, and light bulb
What is electrical energy?
Energy in the form of an electric charge flowing through a conductor
What is an electromagnet?
A temporary magnet made with an iron core, wrapped with a wire coil which has a magnetic field when a current passes through it
An insulator is an object that does _____ ___________ the flow of electricity easily
not allow
What is an independent variable?
What "I change" in an experiment
Which will allow electricity to flow?
a. closed circuit
b. open circuit
a. closed circuit
What is static electricity?
The build up of an electric charge on the surface of an object
What is a magnetic field?
the area around a magnet in which the effect of magnetism is felt
What is the dependent variable?
variable data that DEPENDS on another
What is a closed circuit?
a circuit that provides a complete path for electrical current to flow
To create a closed circuit you need wires, a light bulb, and _________________.
a. light switch
b. power source
c. thermal energy
b. power source
Name 5 conductors
1. Steel
2. Silver
3. Gold
4. Sea Water
5. Copper
What is a renewable resource?
A natural resource that will renew within a human's lifetime
What is an open circuit?
A circuit with an incomplete path and electricity cannot flow
When there is static electricity (a build of an electric charge), the positive and negative charges will...
A. attract
B. repel
A. attract
What is the difference between a permanent magnet and an electromagnet?
An electromagnet has an electrical current/uses electrical energy to create a magnetic field
Name 5 insulators
1. Wood
2. Glass
3. Rubber
4. Plastic
5. Oil
What is a nonrenewable resource?
A natural resource that CANNOT replenish within a human's lifetime, like fossil fuels.
Which will create a closed circuit?
a. conductor
b. insulator
a. conductor
When there is static electricity (a build of an electric charge), the positive and positive charges will...
A. attract
B. repel
B. repel
How do you strengthen an electromagnet?
Increase the wraps around the nail