1. Test for Practice - Electricity
Part 1 – Matching
____ 1) neutron a) Charge flows in one direction
through the circuit.
____ 2) induction b) A device consistingof one ormore meters
____ 3) conductors c) material that allows electrons within it to
move easily.
____ 4) triboelectricseries d)neutral particlesinthe nucleus
____ 5) multimeter e) is a path in which electrons from a voltage
or current source flow
____ 6) circuit f)movingenergy
____ 7) directcurrent g) charged objects are able
to make neutral object become attracted
____ 8) kineticenergy h) basic unit of energy
____ 9) Joule i)output/input
____ 10) efficiency j) ranked materials in order of their ability
to hold or give up electrons
Part 2 – Fill in the Blank
WORD BANK – insulators, electrons,potential,grounding,ampere
1) An atom that gains ________ has more negative than positive particles.
2) Electrons do not move through _______ very well.
3) ____________ is the process of connecting a charged object to the earth's surface.
4) Consider a water balloon on top of an open door. The water
balloon is said to have “__________” energy based on its height as it has the ability (or
potential) to fall towards the earth.
5) Currentuses____________ as a unitto measure.
2. Part 3 – Multiple Choice
1) How much current is flowing through a light bulb when it takes 3 s
for 18 C of charge to pass through its filament?
a) 3A
b) 4A
c) 6A
d) .1 A
2) How much voltage does each charge have if 6 Charges have a total
of 36 Joules of energy?
a) 6V
b) 6A
c) 0.1 A
d) 0.1 C
3) The electrical source transfers 8 J of energy in 2 sec., how
powerful is this?
a) 5W
b) 5A
c) 4W
d) 4A
4) A typical household circuit breaker is designed to allow a
maximum of 15 A on a 110 V circuit. How much power can the circuit handle?
a) 1650W
b) 1550W
c) 7W
d) 1650A
5) Using Either V=IR or I = V/R or R = V/I. What is the resistance of a TV that draws
1.3A from a 110V outlet?
a) 84.6 ohms
b) 100 ohms
c) 84.6 A
d) 90 V
Part 4 – Short Answer
1) What are the 3 waysthat an objectcan be staticallycharged?
2) What isinduction? Give a picture of before andafterforan example.
3. 3) Why doesthe watermove awayfrom a chargedballoon?
4) How doyou hookup a voltmeterandammetertoa circuit?
5) How are the total voltage andcurrentfoundina
a. Seriescircuit?
b. Parallel circuit?
Part 5 – Circuits
1) Below is a typical electric circuit. Label the parts of the circuit.
2) Below are four circuits. Label each one as series or parallel or both.
a) b)
|
+
4. c) d)
3) What is the Voltage inthe blankof these circuits?
4) What is the Total Current?Use Ohm’sLaw
a)
b)
5. 5) What is the Currentat I1, I2, I3? What is the TOTAL CURRENT?
BONUS: What isthe total Resistance?
