Parts of a Circuit
Transformers
Transformations
Electric Currents
Odds and Ends
100
A battery is an example of a(n):
energy source
100
Chemical energy --> Electricity
cell or battery
100
What is the energy transformation for a motor?
Electricity --> Mechanical energy
100
What is a material through which electricity does pass easily?
a conductor
100
Current electricity must travel through a:
circuit
200
A motor, light bulb and buzzer are examples of
loads
200
sunlight --> chemical energy
plants
200
What is the energy transformation for a buzzer?
Electricity --> sound
200
What is a material through which electricity does NOT pass easily?
an insulator
200
What type of charge do electrons have?
negative
300
What is an example of a conductor in a circuit?
wire
300
Electricity --> Thermal energy (two examples)
curling iron, electric frying pan, toaster, space heater, iron, etc.
300
What is the energy transformation for a toaster?
Electricity -->thermal energy
300
What is an example of a good electric conductor
any metal or carbon
300
This changes electricity into other energy forms.
load or resistor
400
Why can electricity not flow through an open circuit?
There is a gap in the circuit and electrons need a conductor to pass through.
400
Electricity --> Mechanical enegy
motor or something with a motor in it like a fan, etc.
400
What is the energy transformation for a light bulb?
Electricity --> light and thermal energy
400
Rubber, plastic, wood or nearly all non-metals are examples of electric ___.
insulators
400
If a material loses electrons it will have a ___ charge.
positive
500
What is the conductor during electrolysis of water?
salt water
500
Thermal energy --> electricity
thermocouple
500
What is the energy transformation for a person walking?
Chemical energy (food)--> Mechanical energy or Thermal energy + Mechanical energy
500
A battery uses these to produce electricity.
chemicals
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