NEW
Font size
S
M
L
XL
WorksheetsElectricity/Magnets
Total questions: 20
Worksheet time: 14mins
Name
Class
Date
1.
What happens when two bar magnets repel each other?
a)
The poles of the magnets pull toward each other.
b)
The poles of the magnets push away from each other.
c)
The centers of the magnets pull toward each other.
d)
The centers o the magnets push away from each other.
2.
Which is not a property of a magnet?
a)
all magnets have two poles
b)
all magnets have a force of attraction or repulsion
c)
all magnets are surrounded by a magnetic field
d)
all magnets can be turned off
3.
A device that uses a free-moving magnetic needle to show direction is a:
a)
lodestone
b)
magnet
c)
compass
d)
magnetic field
4.
A compass _______ is the part of a compass that is magnetic.
a)
bar
b)
dial
c)
needle
d)
rose
5.
Why are magnetic poles called north and south?
a)
because the needle points up and down
b)
because it lines up with Earth's axis
c)
because magnets help with direrctions
d)
because it sounds cool
6.
What causes electricity?
a)
moving neutrons
b)
moving protons
c)
moving atoms
d)
moving electrons
7.
What type of charge do electrons have?
a)
negative
b)
positive
c)
neutral
d)
nothing
8.
What type of electricity occurs when you rub a balloon on your sweater?
a)
thermal electricity
b)
current electricity
c)
static electricity
d)
work electricity
9.
What happens when you touch a metal doorknob after rubbing your shoes on the carpet?
a)
The doorknob sends a burst of electric current into your body
b)
Millions of electrons go from your finger into the doorknob
c)
The doorknob sends millions of electrons into your finger
d)
Your finger becomes negatively charged
10.
Lightning is a form of static electricity. What can you infer about what happens when lightning strikes the ground?
a)
Protons and neutrons are transferred from the clouds to the ground
b)
The ground becomes negatively charged
c)
. Electrons are transferred from the clouds to the ground
d)
An electric current is established between the clouds and the ground
11.
The movement of electrically charged particles is
a)
electric current
b)
electric circuit
c)
electric resistance
12.
Material that PREVENTS electric current or heat from flowing.
a)
electromagnetic field
b)
electric current
c)
insulator
13.
Material that allows electric current or heat to flow through easily.
a)
electromagnetic field
b)
conductor
c)
open circuit
d)
electric current
14.
A(n) is a closed loop of conductive material that a current can flow through.
a)
electric current
b)
electric circuit
c)
electric resistance
15.
A circuit MUST be _______ in order for the current to flow
a)
open
b)
closed
16.
Which of the following is unsafe?
a)
Using a surge protector when you have a lot of devices to plug into one outlet.
b)
Replacing a blown fuse with a fuse that has the same current
c)
Resetting a breaker box after a circuit breaker trips
d)
Using multiple extension cords on one outlet
17.
Where would you find the circuit breaker?
a)
fuse box
b)
kitchen
c)
tool box
d)
outlet
18.
What would you do if an electrical circuit gets overloaded?
a)
repair with a new fuse
b)
unplug and plug back in
c)
flip the circuit breaker
d)
run and hide
19.
What would you do if a fuse is blown?
a)
replace it with a new fuse that has the same current
b)
replace it with a new fuse with a different current
c)
flip the circuit breaker
d)
unplug all appliances
20.
Circuit breakers and fuses protect ___________.
a)
devices from breaking
b)
devices from electricuting you
c)
devices from getting wet
d)
devices from overheating
Reset
