56 Questions
What happens when you rub a balloon on your hair?
Electrons transfer from your hair to the balloon, making your hair positively charged
What is the purpose of earthing an object?
To safely discharge extra electrons into the Earth
What occurs during thunderstorms that leads to lightning?
Friction between particles in clouds causes a build-up of charge
What is the function of an electroscope?
To detect the presence and type of charge on an object
What is the result of a significant build-up of charge on an object?
A discharge, either through contact or across an air gap
What is the purpose of a Van de Graaff Generator?
To generate a large electric charge on a metal dome
What is the main cause of static electricity?
The movement of electrons
What is the charge of electrons?
Negative
What happens to an object when it loses electrons?
It becomes positively charged
What is the result of friction between two surfaces?
Electrons are transferred from one surface to another
What is the normal state of an object in terms of charge?
Neutral
What happens when two objects with the same charge interact?
They repel each other
What is the nucleus of an atom mainly composed of?
Protons and neutrons
What is the result of combing your hair with a plastic comb?
Your hair stands on end and produces crackling sounds
Why do sparks occur when there is a significant build-up of charge on an object?
Because the charge difference becomes large enough to cause a discharge
What happens to the excess charge when an object is earthed?
It dissipates safely into the Earth
What is the purpose of a Van de Graaff Generator?
To generate a large electric charge on a metal dome
What is the effect of a charged object on the gold foil strips in an electroscope?
They spread apart when a charged object is brought near
What is the difference between a spark and a lightning flash?
A spark occurs between two objects, while a lightning flash occurs between clouds and the Earth
What is the result of a charged object coming into contact with a conductor?
The charged object discharges its excess charge
What is the primary reason why objects become charged?
Due to the transfer of electrons
What happens when an object has more protons than electrons?
It becomes positively charged
What is the result of friction between two surfaces?
Electrons are transferred from one surface to another
Why do objects with opposite charges attract each other?
Because of the difference in their charge
What is the term for the resistance against the movement of an object resulting from its contact with another object?
Friction
What happens to an object when it gains electrons?
It becomes negatively charged
Why do objects with the same charge repel each other?
Because of the difference in their charge
What is the composition of the nucleus of an atom?
Protons and neutrons
What is the primary cause of static electricity effects?
The transfer of electrons between objects
What happens to an atom when it gains electrons?
It becomes negatively charged
Why do objects with opposite charges attract each other?
Because opposite charges are attracted to each other
What is the result of friction between two surfaces?
Electrons are transferred between the surfaces
What is the normal state of an object in terms of charge?
Neutral
What is the term for the resistance against the movement of an object resulting from its contact with another object?
Friction
What happens when two objects with the same charge interact?
They repel each other
What is the composition of the nucleus of an atom?
Protons and neutrons
What is the direction of electron transfer when a balloon is rubbed on hair?
From the hair to the balloon
What can occur when a charged object comes into contact with a metal object?
A spark and a shock
What is the purpose of an electroscope?
To detect the presence and type of charge on an object
What occurs when the charge difference between charged regions becomes large enough?
A lightning flash occurs
What is the result of a charged object being brought near the gold foil strips in an electroscope?
The strips spread apart
What is the purpose of earthing an object?
To safely discharge excess electrons
What is the primary mechanism by which a balloon becomes negatively charged when rubbed on hair?
Electrons transfer from the hair to the balloon
What is the primary reason why sparks can ignite flammable materials?
The sparks produce a high-voltage electrical discharge
What is the primary function of an electroscope in detecting static electricity?
To detect the presence of a charged object
What is the primary effect of earthing an object on the object's charge?
The object's charge becomes neutral
What is the primary mechanism by which lightning occurs during thunderstorms?
Friction between particles within clouds
What is the primary effect of a charged object on the gold foil strips in an electroscope?
The strips become charged and spread apart
What is the primary reason for the transfer of electrons during friction?
The objects have a difference in electron density.
What happens to the charge of an object when it gains more electrons than it loses?
The object becomes negatively charged.
What is the result of the interaction between two objects with opposite charges?
They attract each other.
What is the term for the force that holds the nucleus of an atom together?
Strong nuclear force.
What is the effect of friction on the movement of electrons between two surfaces?
It increases the movement of electrons.
What happens to the charge of an object when it loses more electrons than it gains?
The object becomes positively charged.
What is the result of the interaction between two objects with the same charge?
They repel each other.
What is the term for the movement of electrons between two surfaces in contact?
Electron transfer.
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