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Electromagnatism

Total questions: 34

Worksheet time: 2hrs 42mins

Name
Class
Date
1.

How many electrons does Iron have?

a)

26

b)

55.845

c)

55.845 - 26 = 29.845

2.

How many protrons does Iron have?

a)

26

b)

55.845

c)

55.845 - 26 = 29.845

3.

How many neutrons does Iron have?

a)

26

b)

55.845

c)

55.845 - 26 = 29.845

4.

In an atom which two particles have the same amount?

a)

Electrons and Protons

b)

Electrons and Neutrons

c)

Protons and Neutrons

5.

When the number of protons = the number of electrons..

a)

It is called an Atom.

b)

It is called an Ion.

c)

It is called equal.

d)

It is called Sam.

6.

When the number of protons   ≠\ne   the number of electrons..

a)

It is called an Atom.

b)

It is called an Ion.

c)

It is called not equal.

d)

It is called Garrett.

7.

An atom is most stable when....

a)

the electron shells are empty

b)

the electron shells are full

c)

when it is sitting on the table.

8.

Choose the two truths about an electron.

a)

It has a negative charge

b)

it has a positive charge

c)

it is located in the electron shell

d)

it is located in the nucleus

e)

it has a mass of 1

9.

Choose the three truths about an proton.

a)

It has a negative charge

b)

it has a positive charge

c)

it is located in the electron shell

d)

it is located in the nucleus

e)

it has a mass of 1

10.

Choose the two truths about an neutron.

a)

It has a negative charge

b)

it has a positive charge

c)

it is located in the electron shell

d)

it is located in the nucleus

e)

it has a mass of 1

11.
a)

This is an Atom.

b)

This is an Ion, negative charge.

c)

It is an Ion, positive charge.

12.

This type of circuit shares current, lights dimmer, both go out if one is unscrewed.

a)

Series Circuit

b)

Parallel Circuit

13.

In this type of circuit, lights are brighter, if one goes out, the other stays on, each bulb gets full current.

a)

Series Circuit

b)

Parallel Circuit

14.

This person used a compass when he proved that electricity creates a magnetic field.

a)

Mrs. Batts

b)

Faraday

c)

Oersted

d)

Netz

15.

Oersted moved a needle along a wire with electrical current proving what?

a)

That needles are dangerous.

b)

That electricity creates a magnetic field.

c)

That by changing a magnetic field it creates an electric current.

d)

That V = I x R

16.

This person showed that by changing a magnetic field, it creates an electrical current.

a)

Oersted

b)

Faraday

c)

Lubben

d)

Netz

17.

In the equation  I = VRI\ =\ \frac{V}{R}  , What does  II  represent?

a)

The ohms of resistance

b)

The amount of current in the circuit (Amps)

c)

The amount of voltage

d)

The number of Indiginous species.

18.

Which equation solves for voltage?

a)

I = VRI\ =\ \frac{V}{R}

b)

V = I x RV\ =\ I\ x\ R

c)

R = VIR\ =\ \frac{V}{I}

19.

Which equation is absolutely WRONG?

a)

I = VRI\ =\ \frac{V}{R}

b)

V = I x RV\ =\ I\ x\ R

c)

 R = IVR\ =\ \frac{I}{V} 

d)

 R = VIR\ =\ \frac{V}{I}  

20.

Which symbol represents ohms?

a)

Ω\Omega

b)

AA

c)

VV

d)

π\pi

21.

Choose two truths about Direct Current.

a)

Thomas Edison

b)

Nikola Tesla

c)

Charges flow in the SAME direction

d)

Charges are continually REVERSING direction.

22.

Choose two truths about Indirect Current.

a)

Thomas Edison

b)

Nikola Tesla

c)

Charges flow in the SAME direction

d)

Charges are continually REVERSING direction.

23.

Choose the three truths about magnetizing a nail.

a)

Draggin the nail on the strong magnet aligns the domains.

b)

The nail stays magnetized forever.

c)

The nail can be demagnetized by hitting it.

d)

Hitting or dropping the nail randomizes the domains, resulting in demagnetizing.

24.

When a person touches a Van De Graaff generator,

a)

the person becomes charged with static electricity.

b)

the person becomes electrocuted.

c)

the person floats into the air like a balloon.

25.

When a person touches a Van De Graaff generator, they become charged with static electricity and their hair goes up because....

a)

It looses mass.

b)

...it has the same charge and so repels and tries to get away.

c)

of static electricity

26.

Scientists used to think that atoms were the smallest particles, why did they find out that they are not?

a)

Because later they found electrons, neutrons and protons.

b)

Because later they found cells.

c)

Because they read it in the Bible.

d)

Because of the work that Thomas Edison did.

27.

In this picture, which particles zoom around the outside?

a)

electrons

b)

protons

c)

neutrons

28.

In this picture, which two types of particles are clumped together in the center or the nucleus?

a)

electrons

b)

protons

c)

neutrons

29.

The voltage is 50 volts. The current is 2 amps. What is the resistance?

a)

100 ohms

b)

25 ohms

c)

5 ohms

d)

0.04 ohms

30.

The current is 32 amps. The resistance is 4 ohms. What is the voltage?

a)

128 volts.

b)

8 volts

c)

0.125 volts

d)

28 volts

31.

How much voltage would be necessary to generate 20 amps of current in a circuit that has 4 ohms of resistance?

a)

42 volts

b)

0.2 volts

c)

80 volts

d)

5 volts

32.

If a blender produces 15 ohms of resistance in a 105 volt circuit, what is the amount of current?

a)

1575 amps

b)

7 amps

c)

0.14 amps

d)

157 amps

33.

12 amps of current that has 24 ohms of resistance produces how much voltage?

a)

288 volts

b)

2 volts

c)

0.5 volts

d)

28 volts

34.

A toy uses a standard 1.5 Volt battery. How much resistance is in the circuit if it uses a current of 0.01?

a)

0.015 ohms

b)

0.0066666 ohms

c)

150 ohms

d)

15 ohms

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