WorksheetsU13 Review Quizizz
Total questions: 20
Worksheet time: 27mins
What is the direction of the force?
into the page
out of the page
up the page
No force on charge
A current (I) is moving through a wire in the upward direction through a magnetic field directed to the right. What is the direction of the force on the wire?
Up
Down
Into the page
Out of the page
No Force
A current (I) is moving through a wire from left to right is in a magnetic field that is directed upward. What is the direction of the force on the wire?
Up
Down
Into the page
Out of the page
No Force
In a _______ a spinning turbine moves magnets which generates an electric current.
Motor
Generator
If you were to make a motor stronger, what should you do?
Decrease the voltage
Increase the voltage
Disconnect the wires from the batteries
Use a wooden rod instead of a wire
What type of device is shown?
Electromagnet
Electric motor
Electric generator
Electromagnetic induction
What type of device is being shown?
Electromagnet
Electric motor
Electric generator
Electromagnetic Induction
Which is NOT a way to increase the electrical current coming out of a generator?
increase the time (period) it takes to rotate the wire or magnet
increase the amount of coils
increase the strength or surface area of the magnet
increase the speed of rotation of the wire or magnet
The strongest parts of the magnet are ...
fronts
backs
poles
middle
The earth has one magnetic pole.
true
false
The middle of the magnet is the ________________ point.
hottest
coldest
weakest
strongest
a type of iron ore that is magnetic
Permanent Magnet
electro magnet
Magnetism
Lodestone
A transformer actually transforms
voltage
magnetic field lines
generators into motors
Which side of the transformer would be unsafe for me to measure?
Secondary because of the low voltage
Primary because of the high voltage
Both sides have the same voltage, so it doesn't matter.
Cannot be determined
Which scientist found the key to Alternating current by rotating a magnet?
Oersted
Faraday
Maxwell
Tesla
Which scientist used another scientist's research to create a mathematical formula to explain how a current is induced by a magnetic field?
Oersted
Faraday
Maxwell
Tesla
Which scientist discovered the induced magnetic field of a current carrying wire by observing a compass?
Oersted
Faraday
Maxwell
Tesla
Which scientist discovered a current can be induced by moving a magnet in a coil of wire?
Oersted
Faraday
Maxwell
Tesla
