Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
20 Cards in this Set
- Front
- Back
|
An electromagnet needs an _________ to produce a magnetic field.
|
electric current
|
|
|
A __________ circuit has "more than one path for the current".
|
parallel
|
|
|
Electricity has "only one path in which to travel" in a _________ circuit.
|
series
|
|
|
If one bulb on a strand of Christmas lights burns out but the other bulbs stay lit, you know that the strand of lights is on a _________ circuit.
|
parallel
|
|
|
The base of a light bulb is made of metal because metal is a good ____________ of electricity.
|
conductor
|
|
|
Rubber is used as a covering for the wires of an electrical cord because rubber is an ___________.
|
insulator
|
|
|
__________ is a substance used to make most electrical wiring because it is known to be a good conductor of electricity. Pennies are also made of this substance.
|
copper
|
|
|
Sometimes in a closed circuit metal becomes hot and some of the thermal energy is transformed to the air as radiation. This produces _________ such as a filament inside a bulb.
|
light
|
|
|
The most noticable energy produced when you "plug in and turn on a lamp" is ________ energy.
|
light
|
|
|
Radios are designed to produce _________ energy for our listening enjoyment.
|
sound
|
|
|
A _________ is the "constant flow of electrons through a wire".
|
current
|
|
|
A __________ is the "device" used to open and close a circuit.
|
switch
|
|
|
For a ____________ to operate correctly, it must have a battery, a switch, a light bulb, and a conductor.
|
flashlight
|
|
|
A _________ is the component in a circuit that "allows a current to pass through easily".
|
conductor
|
|
|
A _________ is necessary for a flshlight to operate because it provides the energy.
|
battery
|
|
|
"Turning off the lights when no one is in the room" is a way to _________ energy, which means to save energy.
|
conserve
|
|
|
A ceiling fan and a computer require ________ energy to operater.
|
electrical
|
|
|
The ______ ______ are a geological feature of the Earth that can be found covering vast areas of the North and South Poles.
|
ice caps
|
|
|
A ________ is a "break in the crust of the Earth along which rocks move". This geological feature is most closely associated with earthquakes.
|
fault
|
|
|
The _________ ______ "slopes gently down beneath the surface of the water at the edge of a continent".
|
continental shelf
|
