Free Printable Electromagnetism

Worksheets

Electromagnetism

Total questions: 23

Worksheet time: 4hrs 50mins

Name

Class

Date

The strongest parts of the magnet are ...

fronts

backs

poles

middle

What would happen is a north pole of a magnet came close to a north pole of another magnet?

they would be attracted to each other

they would be repelled from each other

The area around a magnet is called the .....

attraction zone

work area

magnetic field

hot zone

True or False: All metals stick to magnets.

True

False

A north pole and a south pole will attract.

True

False

What is true about electricity and magnetic fields?

Electricity is needed to create any magnet.

Electricity always creates a magnetic field.

Electricity is stronger than a magnetic field.

Electricity prevents magnetic fields from occurring.

Are the magnetic field lines in the picture correct?

Yes, because they point from north to south.

No, because they point from north to south (they're supposed to go the other way).

Yes, because the North pole is on the left in all pictures.

No, because the North pole is on the left in all pictures (it's supposed to be on the right).

Which one represents the magnetic field lines of magnets repelling?

Which one represents the magnetic field lines of magnets attracting?

10.

Based on the arrangement of the electric field lines in the diagram, what are the charges?

both charges are the same

the charges are opposite

they are neutral; no charge

11.

When an object gains electrons it becomes __________

Neutral

Positively charged

Negatively charged

12.

An atom of oxygen has 8 protons and 10 electrons, this means the atom is ____________

positively charged because it has excess electrons

negatively charged because it has excess electrons

positively charged because it has a deficiency of electrons

negatively charged because it has a deficiency of electrons

13.

Coulomb's law also says if distance increases, then force

decreases

disapears

destroyed in a heartbeat

doubles

14.

Which graph best represents the relationship between the strength of an electric field and distance from a point charge?

15.

The closer the charges, the ___________ the force between them

closer

further

stronger

weaker

16.

Rubbing a balloon on hair is an example of static charge build up created by....

conduction

friction

induction

hairduction

17.

What variable is a Coulomb the unit for?

Charge

Force

Distance

Mass

18.

If each of the charges doubles, what happens to the force?

Quadruples

Doubles

Stays the same

Reduced by half

19.

Which is the value of the constant in Coulomb's equation?

k_e = 9·10^-9

k_e = 9.8

k_e = 6.67·10^-11

k_e = 9 ·10⁹

20.

What does F_e stand for?

the electrostatic force

the symbol for iron

the constant for the charges

the charges of the particles

21.

Why are there two q's in Coulomb's Law equation?

because there are two charged objects

because there are protons and electrons

because the particles are moving away from each other

because the particles are moving towards each other

22.

A 5 C and 8 C are 8 m apart. What is the force between them?

5.625 x 10⁹

5.625 x 10^-9

4.5 x 10¹⁰

4.5 x 10^-10

23.

A charge of 4 C and -7 C are 200 m apart. What is the force between them?

6.3 x 10⁶

-6.3 x 10⁶

2.52 x 10¹¹

-2.52 x 10¹¹

100 %

Electromagnetism

Total questions: 23

Worksheet time: 4hrs 50mins

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