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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
insulators
B
resistors
C
conductors
D
reductors
2) Materials that do not allow electrons to flow easily are called ___.
A
reductors
B
insulators
C
resistor
D
conductors
3) The amount an object prevents current from flowing is
A
voltage
B
flow
C
resistance
D
current
4) Which of the following is the most important factor that affects current flow?
A
length of conductor
B
diameter of conductor
C
temperature 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
superinsulator
B
superconductor
C
superrisistor
D
supereductor
6) What is the equation for ohm's law?
A
O = VC
B
R = DT
C
P = VI
D
V = IR
7) What is a device added to a circuit to increase resistance?
A
capacitor
B
resistor
C
load
D
conductor
8) Which of the following would not be a conductor?
A
salt water
B
aluminum
C
iron
D
plastic
9) Which of the following would not be an insulator?
A
dry wood
B
copper
C
glass
D
rubber
10) The SI unit for resistance is ______.
A
ampere
B
watt
C
ohm
D
volt
*select an answer for all questions
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