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An electrician is putting in a new light. What is the best material to use for conducting electricity to the light?
copper, metals, aluminum, wires
A student noticed that when she put paper clips between the poles of the switch, the lights came on.
This tells her that the paper clips are a what?
conductor
Electricity used to operate a toaster or stove is transformed to —
Thermal energy
A young man's hair is sticks to the balloon after he rubs the balloon on his head. What is this an example of?
static electricity
A science class was completing an experiment on electrical circuits. Why did the bulb go out each time the switch was opened?
What is the purpose of wrapping electrical wires in plastic?
Plastic is a good insulator-protects from getting shocked
The path that is made for electric current is called a —
circuit
A lamp that is plugged in transfers electrical energy to what?
light energy
What is an example of mechanical energy?
fan, wind mill, etc
An electrician is putting in a new light. What is the best material to use for conducting electricity to the light?
answers may vary
As the number of coils in an electromagnet increases, what will happen to the strength of the electromagnet?
increases
What type of circuit it be if one of the wires was disconnected?
incomplete circuit or open circuit
This is energy from the sun. (NOT light energy)
radiant energy
What is an example of thermal energy?
toaster, fire, etc
A drill used by a construction worker needs electricity to operate. This electricity is transformed into
mechanical energy
A rubber eraser is an example of a what?
insulator
Which energy transformation most likely occurs in a steam iron?
electrical changes to heat
The student felt the cool breeze of the fan. This is an example of — (what type of energy transformation? From what to what?)
electrical to mechanical
What is the best example of a device that converts electrical energy ⇒ thermal energy?
A toaster
A clock radio
An electric toothbrush
A toaster
A type of circuit that has only one path is called a —
series circuit
Which two examples will most likely create static electricity when rubbed together?
Feet and carpet
Hands and fingers
Balloon and hair
Branches and twigs
feet & carpet
Balloon and hair
Name the 3 parts that make a complete circuit
source, load, wires
What is an example of radiant energy?
sun, lamp, light
Which item is designed to change electrical energy into heat energy?
Telephone
Fan
Alarm clock
Hand dryer
hand dryer
Which naturally occurring phenomenon is caused by static electricity? (think in nature)
lightning