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AKS 7 - Electrostatics Quick Review

AKS 7 - Electrostatics Quick Review

Assessment

Presentation

Physics

11th Grade

Medium

NGSS
HS-PS3-5, HS-PS2-4, MS-PS2-3

Standards-aligned

Created by

Leslie Dunham

Used 3+ times

FREE Resource

9 Slides • 8 Questions

1

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AKS 7 - Electrostatics

Quick Review of Key Topics

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  • Exists between charged particles or charged objects

  • Can both ATTRACT and REPEL

Electrostatic Force

3

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  • Friction

  • Conduction

  • Induction

ONLY ELECTRONS CAN BE TRANSFERRED!!

Objects become charged in three ways

4

Multiple Choice

Like charges __________ and opposite charges ________.

1

attract, repel

2

attract, attract

3

repel, attract

4

repel, repel

5

Multiple Choice

A material becomes negatively charged when...

1

It gains electrons

2

It loses electrons

3

It gains protons

4

It loses protons

6

Multiple Choice

Assume a rubber rod is rubbed against a rabbit fur and the rod gains 5 electrons.  Which of the following is true?

1

The fur lost 5 electrons

2

the fur gained 5 electrons

3

the fur gained 5 protons

4

The fur lost 2 electrons

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The leaves in an electroscope repel when charged objects are near

Electroscopes detect charge

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  • Charged object touches a neutral conducting material

  • Electrons move until both objects have the same overall charge

Conduction

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  • Charged object is brought nearby but NOT TOUCHING neutral conductor

  • Charges POLARIZE (separate)

  • Object gains opposite charge if grounded

Induction

10

Multiple Choice

Question image

A negatively charged rod is brought near a neutral electroscope, what happens in the electroscope?

1

Electrons move from the plate to the vein to make the vein negatively charged.

2

Protons move from the plate to the vein to make the vein positively charged.

3

Electrons move from the vein to the plate to make the vein positively charged.

4

Protons move from the vein to the plate to make the vein negatively charged.

11

Multiple Choice

Question image

A positively charged rod is brought near a neutral electroscope, what happens in the electroscope?

1

Electrons move from the plate to the vein to make the vein negatively charged.

2

Protons move from the plate to the vein to make the vein positively charged.

3

Electrons move from the vein to the plate to make the vein positively charged.

4

Protons move from the vein to the plate to make the vein negatively charged.

12

Multiple Choice

Question image

A negatively charged rod touches the plate of a neutral electroscope, what happens in the electroscope?

1

Electrons move from the rod to the plate and to the vein to make the vein negatively charged.

2

Protons move from the rod to the plate and to the vein to make the vein negatively charged.

3

Electrons move from the vein to the plate and to the rod to make the vein positively charged.

4

Protons move from the vein to the plate and to the rod to make the vein negatively charged.

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  • Gravity can only attract; electric force can attract and repel

  • Gravity is weaker than the electric force which is very strong

Comparing force of gravitation and electric force

14

Rule of 1s

How would the electric force between two objects change if the quantity of one charge tripled?

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15

Rule of 1s

How would the electric force between two objects change if the distance between them tripled?

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16

Multiple Choice

Question image

What happens to the force between two charged objects when you double the distance between them?

1

it doubles

2

it is cut in half

3

it quadruples

4

it is cut by 1/4

17

Multiple Choice

Question image

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

1

it doubles

2

it gets cut in half

3

it quadruples

4

it is cut by 1/4

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AKS 7 - Electrostatics

Quick Review of Key Topics

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