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Static electricity notes

Static electricity refers to the buildup of electric charge on the surface of objects. It is often experienced in everyday life, such as when you touch a metal doorknob and feel a shock.

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What is static electricity?

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Static electricity is an imbalance of electric charges within or on the surface of a material.

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1. What happens when you rub a balloon on your hair?

Terms in this Study Set(17)

What is static electricity?

Static electricity is an imbalance of electric charges within or on the surface of a material.

True or false: Static electricity can cause sparks.

True, because a sudden discharge of static electricity can create a spark.

Charge transfer occurs during...

contact, induction, or friction.

Difference between conductors and insulators

Conductors allow electric charges to flow freely; insulators do not.

What is an electric charge?

An electric charge is a physical property of particles that causes them to experience a force in an electromagnetic field.

Fill in the blank: An object with a negative charge has...

more electrons than protons.

What causes static cling?

Static cling occurs when different materials transfer electrons, causing attraction.

What happens when two negatively charged objects are brought together?

They repel each other due to like charges.

True or false: Static electricity is always harmful.

False, because while it can cause shocks, it is not always dangerous.

What is grounding?

Grounding is the process of connecting an object to the Earth to safely discharge static electricity.

What is the triboelectric effect?

The triboelectric effect refers to the charging of materials by friction.

True or false: Lightning is a form of static electricity.

True, because lightning is a large discharge of static electricity.

Electrons carry a...

negative charge.

What is induction?

Induction is the process of charging an object without direct contact.

Fill in the blank: The unit of electric charge is...

the coulomb (C).

Which material is a good insulator?

Rubber, glass, and plastic are good insulators.

What is a Van de Graaff generator?

A device that produces high voltages of static electricity.

Questions in this Study Set(14)

1. What happens when you rub a balloon on your hair?

A.A: It becomes positively charged

B.B: It becomes negatively charged

C.C: It loses all charge

D.D: It becomes neutral

2. Which of the following is NOT a characteristic of static electricity?

A.A: It can cause sparks

B.B: It always involves moving charges

C.C: It can attract lightweight objects

D.D: It can be discharged

3. Which scenario describes charging by induction?

A.A: Rubbing a balloon on hair

B.B: Bringing a charged object near a neutral object

C.C: Touching a metal doorknob

D.D: Rubbing two materials together

4. What is the main cause of static electricity in daily life?

A.A: Friction

B.B: Gravity

C.C: Magnetism

D.D: Radiation

5. What determines if an object is positively or negatively charged?

A.A: The number of neutrons

B.B: The balance of protons and electrons

C.C: The object's mass

D.D: The object's temperature

6. Which statement is true about insulators?

A.A: They allow electric charges to flow freely

B.B: They block the flow of electric charges

C.C: They can generate static electricity

D.D: They are always made of metals

7. Which of the following is an example of grounding?

A.A: Touching a metal object

B.B: Connecting a wire to the ground

C.C: Rubbing two objects together

D.D: Using a battery

8. What does the triboelectric series represent?

A.A: Order of materials based on their resistance

B.B: Order of materials based on their ability to gain or lose electrons

C.C: Order of materials by mass

D.D: Order of materials by temperature

9. What occurs when two objects with the same charge are brought close together?

A.A: They attract

B.B: They repel

C.C: They neutralize

D.D: They become grounded

10. True or false: All materials can become charged.

A.A: True

B.B: False

C.C: Only metals can

D.D: Only insulators can

11. What happens to your body when you touch a charged object?

A.A: You gain electrons

B.B: You lose electrons

C.C: You have no effect

D.D: You become neutral

12. Which of the following is an example of static electricity?

A.A: A light bulb turning on

B.B: A spark from your finger

C.C: A battery powering a toy car

D.D: A current flowing through a wire

13. What is the primary effect of static electricity?

A.A: It creates heat

B.B: It attracts dust

C.C: It produces light

D.D: It causes motion

14. Which of the following describes a positive charge?

A.A: More electrons than protons

B.B: More protons than electrons

C.C: Equal number of protons and electrons

D.D: No charge

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Static electricity notes

Quiz(14 questions)

Terms in this Study Set(17)

Questions in this Study Set(14)

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