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WorksheetsCurrent Electricity
Total questions: 29
Worksheet time: 11mins
North and South poles of magnets do what?
Attract
Repel
What could be the RESISTANCE in an electrical circuit?
Bulbs or appliances hooked up to the circuit
Batteries in the circuit
Wires in the circuit
Sockets in the circuit
Conductors are usually made of ______
Plastic
Fabric
Clay
Metals
Glass
Turning on a switch ______ a circuit.
Closes
Opens
What is not a part of a simple circuit?
lamp
cell
Insulator
Path
Switch
Electricity runs quickly through _________.
Insulators
Conductors
An electric circuit is
A big flash of lightning
A path along which positive charges flow
A path along which negative charges flow
Static electricity
Electric discharge
A series circuit has _____ path or paths of electricity running through it.
1
2
An unlimited number
When a bulb is removed from a parallel circuit, what happens?
All of the other bulbs stay lit
All of the other bulbs go out
How do the cells in a circuit need to be connected?
Negative to negative
Positive to positive
Negative to positive
In a parallel circuit, there are how many paths of electricity flowing through it?
more than 1
1
None because a parallel circuit doesn’t exist
A holder for a bulb is called a _____
Lamp
Cell
Battery
Socket
Wire
Most wiring in your home is in _____
Open circuits
Parallel circuits
Series circuits
An electric current is another name for an electric circuit
False
True
A simple circuit starts with a source of negative charges called a ____.
Lamp
Bulb
Battery
Wire
Another name for a battery is a _____.
Lamp
Wire
Socket
Cell
A circuit is closed when there is no break in the pathway of negative charges.
True
False
Charges can flow through an open circuit.
True
False
Another name for a bulb is a
Socket
Cell
Lamp
Path
Materials that electrons do not flow through in a circuit are called _____
Sockets
Insulators
Conductors
Currents
The wires in our experiments were made of _______
Gold
Silver
Aluminum
Copper
Which one of these is not an insulator?
Gold
Plastic
Cloth
Rubber
Why do all the bulbs not go out in a parallel circuit when one bulb burns out?
There is only one path
Because it is a series circuit
Because it a special kind of light bulb you use in a parallel circuit
Because there is more than one path in a parallel circuit for the electrons to flow through
What happens when the negative and positive end of 2 batteries are connected in a circuit?
The electrons can flow through because a positive end attracts a negative end of a battery
The electrons repel each other and there is no current of electrons.
What happens when a negative end and a negative end of two batteries are connected in a circuit?
The bulbs light up
The bulbs do not light up because the 2 ends of the batteries attract each other
The bulbs do not light up because the two negative ends of the batteries repel each other
The bulbs explode
Resistance is _____
The force that an electric current pushes against in a circuit
The name for a series circuit
The name for a parallel circuit
The force that makes two ends of a battery repel each other.
The more resistance in a circuit (the more bulbs there are or appliances in a circuit) the more electrical energy is lost and turned into heat energy. This is why appliances get hot when they are turned in.
True
False
What is made when a coil of wire is wrapped around a piece of metal like a nail and connected to a battery?
A socket
A circuit
An electromagnet
An insulator
An electromagnet is able to lift very ______ objects from one place to another.
Colorful
Heavy plastic
Lightweight cloth
Heavy metal
