WES SCIENCE Electricity Question Preview (ID: 42075)
4th Grade Science / Electricity.
TEACHERS: click here for quick copy question ID numbers.
You can create an _____________ by wrapping a wire around certain iron-bearing metals (iron nail) and connecting the wire to a battery.
a) mess
b) electromagnet
c) telescope
d) microscope
Which of the following is NOT an insulator?
a) wood
b) plastic
c) rubber
d) copper
Benjamin Franklin conducted research to prove that _________ was really an electrical spark, named the positive (+) and negative (-) charges
a) light
b) sound
c) lightning
d) thunder
Which of the following is an insulator?
a) water
b) rubber
c) copper wire
d) metal pan
A ________ _____ is an invisible force field around every magnet. Lines of force extend from the poles of a magnet in an arched pattern
a) soccer field
b) football field
c) baseball field
d) magnetic field
An _________ is a material that does NOT conduct electricity well. Examples include rubber, plastic, and wood.
a) insulator
b) conductor
c) transmitter
d) splitter
An open circuit is an __________ circuit, where there is some part of the circuit that is NOT CONNECTED. Electricity CANNOT flow through it
a) regular
b) complete
c) incomplete
d) wide
A _______ circuit is a complete circuit where everything is connected. Electricity can easily flow through it.
a) open
b) closed
c) square
d) medium
An electric current is the continuous flow of negative charges called:
a) electrons
b) protons
c) neutrons
d) quarks
Why do socks stick together in the dryer?
a) magnetism
b) static electricity
c) friendship
d) no one knows
Which pair of objects are BOTH good electrical conductors?
a) cork and eraser
b) paper and washer
c) paper clip and nail
d) plastic button and foil
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