Test for Practice - Electricity

Part 1 – Matching

____ 1) neutron a) Charge flows in one direction through the circuit.

____ 2) induction b) A device consisting of one or more meters____ 3) conductors c) material that allows electrons within it to

move easily.____ 4) triboelectric series d)neutral particles in the nucleus____ 5) multimeter e) is a path in which electrons from a voltage

or current source flow____ 6) circuit f)moving energy____ 7) direct current g) charged objects are able

to make neutral object become attracted____ 8) kinetic energy 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) Current uses ____________ as a unit to measure.

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) 3Ab) 4Ac) 6Ad) .1 A

2) How much voltage does each charge have if 6 Charges have a total of 36 Joules of energy?

a) 6Vb) 6Ac) 0.1 Ad) 0.1 C

3) The electrical source transfers 8 J of energy in 2 sec., how powerful is this?

a) 5Wb) 5Ac) 4Wd) 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) 1650Wb) 1550Wc) 7Wd) 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 ohmsb) 100 ohmsc) 84.6 Ad) 90 V

Part 4 – Short Answer

1) What are the 3 ways that an object can be statically charged?

2) What is induction? Give a picture of before and after for an example.

3) Why does the water move away from a charged balloon?

4) How do you hook up a voltmeter and ammeter to a circuit?

5) How are the total voltage and current found in a a. Series circuit?

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)

c) d)

+

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3) What is the Voltage in the blank of these circuits?

4) What is the Total Current? Use Ohm’s Law

a)

b)

5) What is the Current at I1, I2, I3? What is the TOTAL CURRENT?

BONUS: What is the total Resistance?