Unit 3: Electromagnetism Flashcards

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1
Q

Atoms contain…

A

Protons, Neutrons and Electrons

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2
Q

What is the Law of Electric Charges?

A

Like Charges Repel, and opposite charges attract.

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3
Q

What is the charge of Protons, Neutrons and Electrons?

A

Protons- Positive
Electrons- Negative
Neutrons- Neutral

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4
Q

What is a Electric Field?

A

Region around a charged object where electric forces can be exerted on another charged object.

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5
Q

Electric Fields are generally represented by____________

A

Arrows

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6
Q

The arrows for Electric Field represent?

A

Direction of Electric Force around a positive particle and a negative particle.

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7
Q

What are Interacting Electric Fields?

A

When charged particles are close enough to exert a force on each other their electric fields interact.

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8
Q

Electric force is..

A

Force between the charged objects in an electric force

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9
Q

The size of force depends on these 2 things…

A
  1. Amount of Charge
  2. Distance between the Charges
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10
Q

What are the 3 ways you can use to charge an object?

A
  1. Friction
  2. Conduction
  3. Induction
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11
Q

Friction: Charging by Friction occurs when:

A

Electrons are wiped from one object to another.

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12
Q

Conduction: Charging by conduction happens when:

A

Electrons move from 1 object to another through direct contact

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13
Q

Induction: Charging by induction happens when:

A

Charges in a uncharged object are rearranged without direct contact with a charged object.

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14
Q

What is the Conversation of Charge? (Think about the Law of Conversation of Mass!)

A

No charges are created nor destroyed.

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15
Q

An electrical conductor is a material that charges can move?

A

Easily

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16
Q

An insulator is a material in which charges______move easily.

A

Can’t

17
Q

What is Static Electricty?

A

Electric Charge at rest to an object.

18
Q

What is a Electric Discharge?

A

Loss of Static Electricity as charges move off an object

19
Q

True or False: A single charged particle can create a Electric field.

A

True