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WorksheetsIntro to Electromagnetism
Total questions: 12
Worksheet time: 12mins
Who was Haans Christian Oersted (1777-1851)
A Greek philosopher and polymath during the Classical period in Ancient Greece.
A British poet who wrote 3 little pigs.
A Danish physicist and chemist who discovered that electric currents create magnetic fields
A sumo wrestler who could beat up Arnold.
What was the first discovery that showed a connection between electric currents and magnetic fields?
That electric currents create multiply the strength of a magnetic field.
That magnets can generate electricity
That a direct electric current creates a circular magnetic field.
What kind of magnetic field is created around a straight conductor?
boxy
circular
the same as around a solid magnet
Whenever a charge moves through a straight conductor, a circular magnetic field is created around the conductor. Who's principle is this?
Galileo's Discovery
Oersted’s Principle
Einstein's Rule of Relativity
Newton's First Law
What is the right hand rule?
If you touch electricity with your right hand you'll be alright.
Always use your right hand.
If you hold a conductor with your right hand the magnetic field is circular in the direction of your fingers.
The magnetic field is in the direction of your thumb.
How do we know that electrons feel the force that is exerted on them from magnets?
Because a wire sparks when you put a magnet next to it.
Because electrons can create a magnetic force.
Because our electricity is powered by magnets.
How do magnets effect electrons.
Make them dance.
Make them sparkle.
Make them move.
What do we call electromagnetism?
When magnetic field moves electrons and electrons move a magnetic field.
When you put a wire next to a magnet.
When there is a coiled wire around a magnet.
When magnets pick up wires.
What is a solenoid.
A coiled conductor.
A straight conductor.
A copper conductor.
A cure for corona.
How is the magnetic field around a solenoid similar to one around a solid magnet?
It has a North and South pole.
It is charged more on either end than in the middle.
It circulates the solenoid in the same way that it goes around a current that goes through a straight wire.
It is only charged when there is an electric current going through the solenoid.
When do solenoid magnets work?
When you connect apply heat from steam on them.
When you attach them to a double a battery.
When you place steal in the middle of the coil.
When an electric current in the coil is activated.
What is the right hand rule on solenoids?
When the fingers are coiled in the direction of the electric current (the direction of the coil) and the thumb is pointing up. The thumb is pointing to the south pole.
When the fingers are coiled in the direction of the electric current (the direction of the coil) and the thumb is pointing up. The thumb is pointing to the north pole.
When the fingers are coiled in the opposite direction of the electric current (the direction of the coil) and the thumb is pointing up. The thumb is pointing to the north pole.
When you cut your fingers on the wire its got a current running through it.
