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WorksheetsUnit 3 Summary Test
Total questions: 10
Worksheet time: 5mins
Electrical rate is measured in _________.
volts
amps
ohms
coulomb
Frequency is ________ per second.
Hertz
volt
cycle
revolution
In a DC current, electrons flow is always from the ____________ electrode of the battery through the circuit back to the ____________ electrode.
negative, positive
positive, negative
negative, negative
positive, positive
The electrical current is the most economical and is applied to home, business and industries is
DC
DC, 60 Hz
AC, 60 Hz
AC, 50 Hz
If a battery will run a clock for 30 days and the current flow was 0.02 amperes, how many coulombs were in the battery?
0.6
14.4
864
51840
10000
Electrical rate is called _____________.
voltage
coulombs
charge
current
One ampere equals ____________.
1 volt/sec
1 coulomb/sec
1 joule/sec
1 newton/sec
1 Kcal equals _________.
a. 100 cal
1000 cal
0.001 cal
0.01 cal
The amount of heat needed to raise the temperature of any size mass (also equals ) is called _______________________.
specific heat
latent heat
heat capacity
heat flow rate
BTU
Which of the following will affect the amount of heat needed to warm a specific substance?
the temperature change
the size of the mass
the type of substance being warmed
all of the above
