Electricity Quest Flashcards

(28 cards)

1
Q

What are the types of induction?

A

Temporary induction and permanent induction

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2
Q

What is friction?

A

Rubbing two materials together causing electrons to transfer

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3
Q

What device can help you determine if an object is charged?

A

Electroscope

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4
Q

Why do the leaves on the electroscope return to normal when you remove the negatively charged rod?

A

The electrons would spread out and return to their original position because they are no longer repelling each other.

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5
Q

If you bring a negatively charged rod near an electroscope, why do the leaves of the electroscope move apart?

A

(due to temporary induction) Electrons go down towards the leaves making them negative casuing them to repel

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6
Q

If you bring a negatively charged rod and touch it to a neutral electroscope, in which directions will the electrons flow?

A

Rod to electroscope

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7
Q

Why would the metal leaves of the electroscope repel each other when touched with a negatively charged rod?

A

Electrons from the rod transfer to the electroscope, leaving a negativecharge (the leaves will repel because the same charges will repel)

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8
Q

Why do the leaves stay repelled sometimes but return to their neutral position other times?

A

After temporary induction, the leaves will go back to their original position, but after conduction, the leaves will stay repelled apart

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9
Q

If you bring a positively charged rod and touch it to a neutral electroscope, which direction will the electrons flow?

A

Towards the rod to neutralize the charge

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10
Q

Why would the metal leaves of the electroscope repel each other when touched with a positively charged rod?

A

Electrons will leave the electroscope, leaving it positively charged, causing the leaves to repel

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11
Q

What is induction?

A

A static charge produced without making contact with a charged object

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12
Q

What happens when you bring a positively charged glass rod near a neutral sphere? Why does this occur?

A

Electrons are attracted to the side closest to the rod. This occurs because of electrostatic induction

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13
Q

What is grounding and what does it do to charged objects?

A

Connects a charged object to the earth using a conductor. It neutralizes charged objects

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14
Q

If you take a positively charged electroscope and attach it to the ground, in which direction will the electrons flow?

A

Electrons will flow from the ground to the electroscope

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15
Q

If you take a negatively charged electroscope and attach it to the ground, in which direction will the electrons flow?

A

The electrons will flow from the electroscope to the ground

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16
Q

Static electricity

A

Static electricity is the result of electrons transferring between charged objects

17
Q

Conduction

A

Occurs when two objects with different charges come in contact

18
Q

Induction

A

a static charge produced without making contact with a charged object

19
Q

(Temporary induction) What will happen if a negatively charged object is brought to a neutral one?

A

Negative charge: the near side becomes positive.
Positive charge:the near side becomes negative.

20
Q

(Temporary induction) What will happen if a positively charged object is brought to a neutral one?

A

Side of object closest to positive charge will have temporary negative charge

21
Q

Grounding

A

Grounding is connecting a charged object to the ground.
- Results in electric charge of an
object being removed
(neutralized)

22
Q

What will happen if an object is grounded and a charge object is brought near?

A

the charge will be permanent and neutralized

23
Q

Electrical Discharge

A

electrical charges leave an object. This occurs when charges are given a path to escape.

24
Q

Lightning Rod

A

A metal rod designed to attract electrical charge (such as lightning) and safely direct it into the ground, preventing damage to buildings or trees.

25
How does lighting work?
Electrons build up in clouds, making the ground positive. When the charge difference is too big, electrons jump to the ground as lightning.
26
3 Electrostatic Laws
- Opposite charges attract - Like charges repel - Charged objects attract neutral objects
27
How do positive/negative charges interact with each other and with neutral charges
Neutral objects are attracted to charged objects because in each neutral object there are positives and negatives
28