WorksheetsElectrical Concepts Recap
Total questions: 28
Worksheet time: 14mins
Which conductor is the odd one out?
Aluminium
Plastic
Copper
Which insulator is the odd one out?
Thermoplastic
Ceramic
Gold
The SI unit of mass is _______.
Kilogram
Gram
Pound
Ounce
The SI unit of time is _______.
Second
Minute
Hour
Day
The SI unit of electric current is _______.
Ampere
Volt
Ohm
Watt
What does the unit 'Volt' measure?
PD/emf (voltage)
Current
Resistance
Power
What is the unit symbol for 'Watt'?
W
Wt
Wa
Wt.
Which of the following units is used to measure Resistance?
Volt
Watt
Ohm
Joule
Why do electricians need an easier way to write down numbers?
Because the numbers electricians use can be very large or very small.
Because electricians do not like to write numbers.
Because electricians only use even numbers.
Because electricians want to save paper.
What is the purpose of using standard form when dealing with very large or very small numbers?
To show a very large or very small number in an easier way and save confusion when dealing with lots of zeros.
To make numbers look more complicated.
To increase the value of the numbers.
To convert numbers into fractions.
Is 11 x 10³ in Engineering notation or Standard form?
Engineering notation
Standard form
Is 9.8 x 10⁵ in Engineering notation or Standard form?
Engineering notation
Standard form
Is 19.14 x 10¹² in Engineering notation or Standard form?
Engineering notation
Standard form
Is 1.19 x 10² in Engineering notation or Standard form?
Engineering notation
Standard form
Is 234.9 x 10⁻³ in Engineering notation or Standard form?
Engineering notation
Standard form
What is the letter used for the value 1,000,000,000,000 in engineering form?
T (tera)
G (giga)
M (mega)
k (kilo)
What is the abbreviation for the value 1,000 in engineering form?
K (kilo)
M (mega)
m (milli)
G (giga)
What is the power of 10 for Unity/one?
1x100
1x101
1x102
1x10−1
Current (I) is the flow of _______.
electrons
protons
neutrons
photons
Electrons flow from ______ to positive.
negative
neutral
ground
earth
Electron flow is different to conventional current flow.
True
False
Current (I) is measured in ______ (A).
amperes
volts
ohms
watts
What is a good conductor?
A material with no free electrons in the outer shell
A material with 'free' electrons in the outer shell
A material with high resistance
A material that does not conduct electricity
What is a good insulator?
A material with 'free' electrons in the outer shell
A material with no free electrons
A material with low resistance
A material that conducts electricity easily
What is resistance (R) measured in?
ohms (Ω)
watts (W)
amperes (A)
volts (V)
What is current (I) measured in?
amperes (A)
volts (V)
ohms (Ω)
watts (W)
What is charge (Q) measured in?
coulombs (C)
amperes (A)
volts (V)
ohms (Ω)
What is the unit for PD/emf (battery source, V)?
volts (V)
amperes (A)
ohms (Ω)
watts (W)
