Show:
A
B
C
D
E
100
Which of these is a conductor? *drinking glass *gold watch *rubber band *sidewalk chalk
gold watch
100
If a magnet is broken into two parts, does each part still have its own north and south poles?
Yes
100
If a light bulb lights up in a circuit, is the circuit open or closed?
closed
100
What is magnetism?
A force that works on moving electric charges and magnetic materials
100
A washing machine transforms _____ energy into ____ energy.
electrical energy into motion energy
200
What is static electricity?
An excess charge in an object
200
Why does a compass needle point in a north-south direction?
The needle reacts to Earth's magnetic poles.
200
Would a break in a SERIES circuit allow electric current to flow?
No
200
What is an example of a resistor?
a filament
200
How is an electromagnet made?
By passing an electric current through coiled wire
300
If two balloons attract each other, do they have the same charge or opposite charges?
opposite charge
300
Does an electric charge flow easily through conductors or insulators?
Conductors
300
How can the strength of an electromagnet be increased?
1) add more coils or wire 2) increase the amount of electric current
300
Would electricity be able to flow through a rubber eraser?
No
300
Why would you use an insulator?
It makes electrically charges objects safe to handle.