| Circuits |
| #1 |
In a series circuit, electric charges flow in a what? |
loop around the circuit |
| #2 |
What two reasons would cause an electric current to stop flowing in a series circuit? |
1-any break in the loop 2-burnt out or missing bulb |
| #3 |
If one of the loops in a parallel circuit is broken, what will happen? |
The current will still flow through the unbroken loops (ex: Christmas lights). |
| #4 |
What makes up an electric circuit? |
energy source (battery), light bulb (resistor), switch, and wire |
| #5 |
What flows through an electrical circuit? |
an electric charge |
| Conductors and Insulators |
| #1 |
What are three examples of conductors? |
gold, copper, and metal |
| #2 |
What are three examples of insulators? |
rubber, glass, plastic, or chalk |
| #3 |
To determine whether an object is a conductor or insulator, where do you place the object in the circuit? |
between the battery and light bulb |
| #4 |
How are conductors alike? |
They all have metal in them. |
| #5 |
Why are electrical cords covered in plastic? |
Plastic is a good insulator. |
| Electric Circuit Experiment |
| #1 |
In the experiment, electrical energy is transferred into what two kinds of energy? |
light and heat |
| #2 |
What parts were needed to light the light bulb? |
light bulb (resistor), wire, and a battery (energy source) |
| #3 |
When the switch of an electric circuit is open, what will happen? |
The circuit is broken and the current stops flowing. |
| #4 |
When the switch of an electric current is closed, what will happen? |
The circuit is working and the current is flowing through it. |
| #5 |
Why do we add a switch to an electric circuit? |
The switch allows the circuit to open and close (turn on and off). |
| Miscellaneous |
| #1 |
A filament is a thin, coiled wire that can get very hot without melting. What purpose is a filament in a light bulb? |
a resistor |
| #2 |
What are tiny building blocks of everything? |
atoms |
| #3 |
What makes up an atom? |
a positive charge, a negative charge, and no charge |
| #4 |
Name an object that transforms electrical energy to sound energy? |
radio, television, cellphone, laptop, computer, etc. |
| #5 |
What kind of electricity is it when you get a shock from a doorknob? |
static electricity |
