WorksheetsCircuit Lab Science Olympiad 2018-19
Total questions: 22
Worksheet time: 13mins
Which is more dangerous: DC or AC?
DC
AC
What is Ohm's Law?
V = IR
E = mc2
R1 + R2 + R3...RN-1 + RN-2...
All of the above
When voltage increases, current_________.
increases
decreases
Who invented the electrical battery?
Georg Ohm
Nikola Tesla
Alessandro Volta
Michael Faraday
How do you find the Rtot, or resistance total in a series circuit?
Add up all the resistors' values.
Multiply all the resistors' values.
Divide all the resistors' values.
Subtract all the resistors' values.
Is the circuit shown above series or parallel?
parallel
series
How do you calculate resistance in a circuit?
R = V/I
R = I ⋅ V
R = I/V
R = V + I
What is Coloumb's Law?
F = kq1q2/r2
F = q1q2 + r2
F = m × a
F = q1/q2
Which type of current oscillates back and forth?
Direct Current(DC)
Alternating Current(AC)
What is this component?
Diode
Anode
Light Emmiting Diode(LED)
Variable Resistor
In a circuit, what is the formula for power, and what is it measured in?
P = IV, Ohms
P = IR, Joules per second
P = IV, Watts
P = IRV, Watts
What are two BOTH good magnetic materials?
Copper and Iron
Bronze and Iron
Copper and Steel
Steel and Iron
In the image shown above, calculate the equivalent resistance and the total current in the circuit.
Req = 5k Ohms, It = 2 mA
Req = 2k Ohms, It = 5 mA
Req = 4k Ohms, It = 40kA
Req= 2 Ohms, It = 5 A
What is the SI unit for capacitance?
Volts
Amperes
Farads
Ohms
Which of the following is the symbol for an AC power system?
Which of the following are DRY cell batteries?
Lead-Acid Batteries
Car Batteries
Lithium-Ion Batteries
Zinc-Carbon Batteries
How does conventional current flow?
cathode (negative) to anode (positive)
anode (positive) to cathode (negative)
If the switch is closed shown in the image above, will the load, or bulb light up?
no
yes
It depends on the situation
none of the above
In a permanent magnet, which way do the arrows in the magnetic field lines point?
south to north
north to south
How does the polarity of an LED affect it?
It doesnt't allow current to flow at all.
It allows current to flow in two directions.
It only allows current to flow in one direction.
None of the above
According to the resistor color code, what is the tolerance for gold?
10%
5%
0.25%
1%
What is a diode's function?
To emit light.
To only allow current to flow in one direction.
To provide a voltage source.
To not allow current to flow at all.
