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Electromagnetism Test

Last updated almost 5 years ago

13 questions

1

An object that attracts certain materials such as iron, nickel and cobalt is a

1

A solenoid (coil) wrapped around a bar of iron or other ferromagnetic material
is known as an

1

Where is a magnet the strongest?

1

The area around the magnet where it exerts magnetic force is the

1

When charges go towards to one another they attract

1

A magnetic field produces an electric current, as long as the magnetic field is changing. What law is this?

1

What's wrong with the circuit?

1

What causes static electricity? Select ALL that apply

1

A student created an electromagnet out of a D 1.5 volt battery, a nail and some wire. What are ways he/she could boost the strength of the electromagnet? Select all that are correct.

1

Sasha dropped a magnet on the sidewalk. Now it no longer attracts paper clips. Why?

1

Draw magnetic field lines around the two bar magnets pictured below.

1

An electromagnet with 50 coils can pick up 12 paper clips and an electromagnet with 200 coils can pick up 48 paper clips, How many paper clips do you think a magnet with 100 coils could pick up?

1

In the Electromagnet lab, 20 coils picked up 10 paper clips. A paper clip weighs .003 pounds. A Nissan Altima Car weighs 3,100 pounds. Using what you just found, how many coils would it take to lift up the car?