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Electricity and Magnetism Flashcards | StudBud
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Electricity and Magnetism
Electricity and Magnetism
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1
How can we discover which magnet is strongest?
weight the magnets, knowing which one is stronger
test which magnet will lift the heavist nail
see which magnet will stick to the side of a locker
determine if the magnets will attract or repel each other.
2
What is a naturally occurring type of electricity?
battery power
power plants
fossil fuels
static electricity
3
Which part of a circuit conducts electricity?
switch
battery
wire
light bulb
4
What type of spoon should you avoid when placing in a soup, to avoid getting burned?
metal
rubber
plastic
wooden
5
What would happen if a piece of iron was placed close to an electromagnet?
It would spin
It gains a positive charge
It moves towards a piece of iron
It gains a negative charge
6
Which object is an insulator?
crayon
nail
staple
paper clip
7
Why is the end of headphones that plugs into a device not coated in plastic?
the metal is a better conductor of electricity
the metal costs less
the plastic would melt
the plastic would break too easily
8
A class wants to lift a four pound plate the electromagnet instead of a two pound plate. What should they do?
wrap an even larger nail in three coils of wire
wrap the nail with only one coil of wire
try using a smaller battery
wrap the nail with wire six times, not three
9
Which part of a circuit can stop the current from flowing?
switch
light bulb
battery
wire
10
If you comb your hair for about a minute, then turn on the water faucet, the water will actually bend towards the comb!
True
False
11
The power source could be a:
light-bulb
switch
wire
battery
12
Which experiment could be conducted to show an example of how lightning is created?
rub a balloon with a sweater
rub a balloon with air on a wool cloth
walk across carpet, shuffling your fee and touch something made of metal
connect the positive and negative poles to make a circuit
13
What will create static electricity?
allowing like forces to attract
wrapping wire around iron and sending a charge through wire.
flipping on a light in your classroom
rubbing a plastic comb on a piece of wool
14
Which object will not be attracted to a magnet?
iron nails
steel fork
brick
nails and paper clips
15
This picture shows a complete electrical circuit.
False
True
16
The picture shows a complete electrical circuit
False
True
17
What is the difference between a magnet and an electromagnet?
a magnet will pick up items that can't be picked up by an electromagnet
magnets have a set strength; while an electromagnet can be adjusted.
an electromagnet will pick up items that can't be picked up by a magnet
electromagnets have a set strength
18
Which object is a conductor?
rope
pencil
steel fork
screwdriver
19
If the open circuit is closed by connected a TV to the gap, what happens?
the flow of electricity changes directions
the battery overheats and explodes
the flow of electricity stops
electricity flows and the TV turns on
