Magnetism/Electricity Review

Front

What would happen if you brought the south pole of a magnet next to the north pole of another magnet?

Back

They would attract.

Front

Which statement is correct about magnetic fields? Options: The field lines criss cross each other near the poles., The field lines get closer the farther away you go from the magnet., The field loses strength farther from the magnet and the field lines go from the north to south pole., The field loses strength farther from the magnet and goes from south to south pole.

Back

The field loses strength farther from the magnet and the field lines go from the north to south pole.

Front

What is a device that changes kinetic energy into electrical energy?

Back

generator

Front

Which of the following would have the strongest magnetic field? Options: An electromagnet with a high current and 15 coils., An electromagnet with a low current and 15 coils., An electromagnet with a high current and 25 coils., An electromagnet with a low current and 25 coils.

Back

An electromagnet with a high current and 25 coils.

Front

Which statement best describes electromagnetic induction? Options: Wrapping wires with electricity in them around a nail creates a magnetic field., Moving magnets near a coil of wire creates electrical current in the wire., A magnet's atoms and domains line up to create a magnetic field.

Back

Moving magnets near a coil of wire creates electrical current in the wire.

Front

Where is the magnetic field the strongest on a magnet? Options: furthest from the magnet, between the magnets, at the poles

Back

at the poles

Front

Which of these metals cannot become magnetized? cobalt, copper, iron, nickel

Back

copper

Front

Which statement best describes what happens inside of a magnet when it becomes magnetized? Options: The atoms and domains line up., The atoms and domains become randomized., The atoms and domains attract and repel.

Back

The atoms and domains line up.

Front

Which instrument makes use of the Earth's magnetic field? Options: magnetron, electromagnet, compass, maglev

Back

compass

Front

How could you use a string to determine the north pole of a magnet?

Back

Hang a magnet from a string. The north pole will point north.