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Samuels PS Resistance
Test Description: Physical Science Resistance
Instructions: Answer all questions to get your test result.
1) Materials through which current flows easily are called ____.
A
conductors
B
reductors
C
resistors
D
insulators
2) Materials that do not allow electrons to flow easily are called ___.
A
reductors
B
conductors
C
insulators
D
resistor
3) The amount an object prevents current from flowing is
A
resistance
B
current
C
voltage
D
flow
4) Which of the following is the most important factor that affects current flow?
A
diameter of conductor
B
temperature of conductor
C
length of conductor
D
type of material
5) A material that allows current to flow with no resistance and no friction, but currently has to be at a really low temperature to work.
A
supereductor
B
superconductor
C
superinsulator
D
superrisistor
6) What is the equation for ohm's law?
A
R = DT
B
P = VI
C
V = IR
D
O = VC
7) What is a device added to a circuit to increase resistance?
A
resistor
B
capacitor
C
conductor
D
load
8) Which of the following would not be a conductor?
A
iron
B
aluminum
C
salt water
D
plastic
9) Which of the following would not be an insulator?
A
rubber
B
copper
C
dry wood
D
glass
10) The SI unit for resistance is ______.
A
ampere
B
watt
C
volt
D
ohm
*select an answer for all questions
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