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Electricity and Magnetism

Total questions: 33

Worksheet time: 20mins

Name
Class
Date
1.

These materials inhibit the flow of charge.

a)

conductor

b)

fuse

c)

electric discharge

d)

insulator

2.
A circuit that has more than one path for electricity to follow is a...
a)
series
b)
static
c)
broken
d)
parallel
3.
Copper is used in wiring because it is an excellent______________ of electricity.
a)
circuit breaker
b)
conductor
c)
insulator
d)
fuse
4.
The buildup of electric charges on an object is called static electricity.
a)
true
b)
false
5.

The flow of electricity in a conductor is

a)

current

b)

voltage

c)

circuit

d)

resistance

6.

An example of a parallel circuit is

a)

the wiring in a house

b)

a flashlight

c)

a single circular path

d)

a toaster

7.

The unit for current is

a)

volts

b)

ohms

c)

amps

d)

teslas

8.
Rubber is a good insulator.
a)

true

b)
false
9.

The unit for resistance is

a)

volts

b)

ohms

c)

amps

d)

teslas

10.

This is the path along which electricity travels.

a)

electric circuit

b)

conductor

c)

insulator

d)

fuse

11.

The unit for voltage is

a)

volts

b)

ohms

c)

amps

d)

teslas

12.

Building static electricity through friction causes which of the following?

a)

lightning

b)

static cling

c)

a plastic bag sticking to the wall

d)

your hair standing up when you touch the van de Graaff generator

13.
If you take one light bulb out of a parallel circuit, all the lights will go out.
a)
true
b)
false
14.

Building static electricity through induction causes which of the following?

a)

lightning

b)

static cling

c)

get shocked on a trampoline

d)

your hair standing up when you touch the van de Graaff generator

15.

The gaps between your nerve cells are called

a)

axons

b)

dendrites

c)

switches

d)

synapses

16.

Building static electricity through conduction causes which of the following?

a)

lightning

b)

static cling

c)

get shocked on a trampoline

d)

your hair standing up when you touch the van de Graaff generator

17.

A circuit in which all of the current must flow through all of the resistors is

a)

series

b)

parallel

c)

combination

d)

all of the above

18.

Which way of building static electricity does NOT require contact?

a)

conduction

b)

induction

c)

Ohm's method

d)

friction

19.

The conductive substance that fill the gap between your nerve cells are

a)

metallic

b)

acidic

c)

synapses

d)

neurotransmitters

20.

Which neurotransmitter is responsible for feelings of happiness?

a)

dopamine

b)

serotonin

c)

gaba

d)

adrenaline

21.
This is an example of a _______ circuit
a)
open
b)
series
c)
parallel
d)
square
22.
This is an example of a ______ circuit
a)
Series
b)
Parallel
c)
Open
d)
Dihexihedral
23.
The picture shows an electrical circuit. This circuit is a series circuit because: 
a)
It has 3 light bulbs.
b)
The same current flows through all three light bulbs.
c)
It uses a single battery.
d)
The electrical current is divided between the three light bulbs.
24.
what is this symbol for?
a)
light bulb
b)
switch
c)
battery
d)
resistor
25.

According to Ohm's Law

a)

high resistance increases current

b)

high voltage increases current

c)

low resistance increases current

d)

Some of the above

26.

The areas in a material where the electrons' spin is aligned are

a)

monopoles

b)

spin zones

c)

magnetic domains

d)

generators

27.

Magnetism is caused by

a)

gravity

b)

feedback

c)

metal

d)

moving charges

28.

The benefit of an electromagnet is

a)

it can be turned on and off

b)

its strength can be controlled

c)

its polarity can be controlled

d)

all of these

29.

What elements in the earth's core give it its magnetic field?

a)

silver, gold, and platinum

b)

iron, nickel, and cobalt

c)

sodium and potassium

d)

hydrogen and oxygen

30.

What ions in your nerves carry electrical impulses?

a)

silver, gold, and platinum

b)

iron, nickel, and cobalt

c)

sodium and potassium

d)

hydrogen and oxygen

31.

Which devices uses the motion of a conductor in a magnetic field to produce current

a)

motors and speakers

b)

generators and microphones

c)

electromagnets and permanent magnets

d)

all of the above

32.

Which devices uses current in a magnetic field to produce motion

a)

motors and speakers

b)

generators and microphones

c)

electromagnets and permanent magnets

d)

all of the above

33.

Which of the following phenomena is caused by the earth's magnetic field

a)

protection from solar winds

b)

auroras

c)

migration of animals

d)

all of the above

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