Definitions
Material through which electric current passes easily
A: battery
B: conductor
C: switch
D: voltage
B: conductor
Wires are often made of copper because copper ___.
A. is a filament
B. has high resistance
C. is a good conductor
D. uses few watts
C. is a good conductor
The long and short line side-by-side are the symbol for a _________.
battery
How much voltage flows through a series circuit with two batteries?
3 volts
On a circuit puzzle folder, none of the holes, when tested, caused the bulb to glow. What conclusion can you draw about the aluminum foil underneath?
None of the holes were connected by foil
Device used to stop and start the flow of electric current in a circuit
A: battery
B: conductor
C: switch
D: voltage
C: switch
All the circuit parts are connected one after the other in a ________ circuit
series
A straight line is a symbol for what in a circuit diagram?
wire
How much voltage flows through a parallel circuit with three batteries?
1.5 volts
two copper wires, a piece of Nichrome wire, modeling clay
Small coiled wire that glows when electric current passes through it
A: circuit
B: insulator
C: resistance
D: filament
D: filament
Electric current flows through more than one path in a ________ circuit
parallel
A wavy line is a symbol for what in a circuit diagram?
fuse
In a series circuit, will the bulb be brighter if copper wires or Nichrome wires are used? Why?
The 4th/5th grade students were able to make water conduct electric current by adding one ingredient to the water. What ingredient did they add?
salt
Measure of how well electric current flows through a material
A: circuit
B: electric charge
C: resistance
D: voltage
C: resistance
The points where electric current leaves and enters a battery are ______.
terminals
the short line
The push needed to move electric charge is called...
voltage
The glow of a fluorescent bulb is caused by _______.
A. a turbine
B. a coating on the inside of a tube
C. static electricity
D. electromagnets
B. a coating on the inside of a tube
Material through which electric current does not pass easily
A: conductor
B: insulator
C: filament
D: terminal
B: insulator
What is missing from this circuit?
a battery, two electrical clips, one bulb and bulb holder, three wires, a small piece of cardboard, two brass fasteners
a paper clip
How many wires are needed in a circuit with a battery, bulb, and switch?
3 wires
Which wire would make a good light bulb filament?
copper
aluminum
tungsten
The tungsten wire would, because it has a high melting point
You attach six 1.5-volt batteries in series and put the ends in a baking soda solution. The bulbs in the circuit glow. When you attach the same batteries in parallel, the bulbs do not glow. Why?
When attached in parallel, only 1.5 volts of current are flowing through the circuit, so the bulbs do not glow. In series, the greater voltage caused the bulbs to glow.