Camilla walked across the carpet in her socks. When she touched the doorknob, she felt a small shock. What has been built up on her body that causes the shock?
electrons
100
An electrical component that has a continuous path for electrons to flow is called _____.
a closed circuit
100
When an iron nail wrapped in a copper wire is attached to a circuit, it forms ______.
an electromagnet
100
Lightning is a form of ___________ energy.
electrical
100
a circuit in which there are multiple pathways for current to flow through
parallel circuit
200
Ben and Adam were experimenting with static electricity in class. Ben rubbed a balloon on his shirt and Adam used a comb on his hair. Ben and Adam place the balloon and comb near each other and they repel each other. Why?
They have same electrical charges.
200
Riley was experimenting with conductors and insulators. She was trying to determine if cardboard is a conductor or insulator by placing it in her circuit. The bulb in her circuit went did not light when she placed the cardboard in the circuit. Riley concluded that cardboard is a(n) ________.
insulator
200
Longer electrical wires have a greater ________ than shorter electrical wires.
resistance
200
A ________ is used to open and close circuits.
switch
200
Lightning is an example of ______________.
static electricty
300
Bella took clothes out of the dryer. A sock was clinging to a shirt. What causes this to happen?
The sock and shirt have opposite charges.
300
In a series circuit, if one bulb goes out, what happens to the other bulbs?
They will go out too.
300
An electric charge that builds up on materials
static electricity
300
What three components are required for a circuit?
Load (something to use electricity), conductor, and a power source
300
How are static electricity and current electricity alike?
They are both the movement of electrons.
400
materials that electric charges do not flow through easily
insulator
400
An electric bulb will stop shining when a light switch is shut off because ________.
It is an open circuit. (It creates a gap in the circuit.)
400
A pathway that an electric current follows
electric circuit
400
Protons have a ___________ charge and are located in the ____________.
positive, nucleus
400
How are static electricity and current electricity different.
Static electricity is the sudden jump of electrons, current electricity is the continuous flow of electrons.
500
Draw a picture of an atom and label the proton, neutron, and electron. What is the charge of each part.
Check your journal.
500
What would happen if you home were wired entirely with series circuits?
Answers will vary....
500
What is the difference between a bar magnet and an electromagnet?
An electromagnet can be turned on and off.
500
Van de Graaff generators are useful in demonstrating the build up of _____________.