The flashcards below were created by user
angeleenie70
on FreezingBlue Flashcards.
-
What materials are necessary to build a battery?
- container
- electrolyte solution
- zinc and copper
-
How does a battery work?
- 1. Zinc dissolves in electrolyte solution, leaving behind some electrons. This becomes the negative terminal.
- 2. Electrons from copper are attracted by the positive zinc ions.
- 3. The copper is slightly charged, becoming the positive terminal.
- 4. Connecting the negatively charged zinc to the positively charged copper lets electrons flow.
-
How does a regular switch work?
- a switch is a mechanism which causes 2 pieces of metal to touch or not touch.
- When the metal is touching, the switch is closed.
- When the 2 pieces of metal are not touching, the switch is open.
-
What is a semiconductor?
Something that conducts electricity but not very well
-
How does a dimmer switch work?
A dimmer switch uses semiconductors to allow more or less electricity to reach the light
-
What are some differences between series and parallel circuits?
when a part of a series circuit stops working, the whole thing stops working; in a parallel circuit, if one part stops working, the rest continues working
a series circuit is only one circuit but a parallel is many series connected to one power source
-
What happens in a circuit if two or more batteries are placed end to end?
the light will shine brighter (if it is negative to positive)
-
What happens if the batteries are placed side by side?
nothing will turn on
-
What is a short circuit?
a short circuit is when electricity finds a shorter way for electricity to flow from negative to positive terminal without passing through the load
-
What is a fuse?
circuit breakers and fuses are weak links so that when too much electricity flows through the circuit, it breaks
|
|