Section A
Section B
Section C
Section D
Section E
100
Where does electricity comes from?
atoms.
100
What has a positive charge (+)?
Each proton
100
He found that if you rub cloth with a piece of amber, the cloth attracts objects such as feathers.
Thales
100
When electricity flows, we call the flow a
current.
100
What has no charge at all because they are neutral.
Neutrons
200
What is a magnetic force around a magnet or electrical field?
magnetic field
200
What are resistors?
a: batteries that run radios
b: materials that hold electrons
c: electrons that explode
d: magnets that are weak
b: materials that hold electrons
200
Look at the illustration of the Voltaic Pile. What is the material in the middle of pile?
a: a wooden paddle
b: a plastic poker chip
c: a piece of cloth soaked in acid
d: a zinc disc
a zinc disc
200
What carries gigantic amounts of energy without getting too hot?
superconductors
200
He knew about magnetic stones known as lodestones that attracted metal. So, people have known about magnetism for a long time as well.
Aristotle
300
Both protons and electrons have something called an
electric charge.
300
Electromagnetic trains in Japan can reach speeds of _____.
a: at least 350 mph
b: 110 mph
c: over 1,000 mph
d: just under 65 mph
a: at least 350 mph
300
Why does a compass point north?
because the earth is a magnetic field
300
What has a negative charge (-)?
each orbiting electron
300
An electromagnet is different from an iron magnet because ____.
a: it will require a battery pack to charge it
b: it can also be plugged in to run a toaster
c: it is created by an electric current
d: it is always painted blue
c: it is created by an electric current
400
What causes lightning in the air?
Static electricity
400
He invented a software program that allows us to easily send and receive information from the Internet. He named this new program the World Wide Web (www or Web).
Timothy Berners-Lee
400
He discovered that electricity could be produced and conducted with metals and chemicals.
Volta
400
Copper and silver are very good ____.
a: insulators
b: conductors
c: acids to clean carburetors
d: types of soft plastic
b: conductors
400
A circuit is _____.
a: a car battery
b: an insulating material
c: a carnival
d: the pathway for the flow of electricity
d: the pathway for the flow of electricity
500
He discovered that magnets and electricity are very closely related. He found that electricity can be used to make magnets and that magnets can be used to generate electricity.
Hans Christian Oersted
500
Take a look at the illustration of the old-fashioned generator. How does the copper in between the magnets move?
a: It is attached to a handle that turns.
b: It has hamsters on the inside.
c: It is turned by the force of the magnet.
d: It is moved by air currents underneath.
a: It is attached to a handle that turns.
500
An ampere measures _____.
a: the distance between breaks in a bridge expansion
b: the elapsed time from wave to wave
c: the volume of chemicals in a battery
d: the strength of an electric current
d: the strength of an electric current
500
What was the Voltaic pile?
a copper disc, followed by a pad soaked in salt water, followed by a zinc disc, followed by a pad soaked in salt water.
500
Who uses his power to bend metal bars, destroy satellites and short-circuit all of Earth's electric devices.
Magneto