Static Electricity & Safety
Questions and Answers
- 1.
What type of electrical charges attract eachother?
- A.
Negative
- B.
Polar
- C.
Opposite
- D.
Skinny ones
Correct Answer
C. OppositeExplanation
Opposite electrical charges attract each other because they have opposite polarities. Positive charges attract negative charges, and vice versa. This is due to the fundamental principle of electrostatics, which states that opposite charges attract each other while like charges repel. Therefore, the correct answer is "Opposite."Rate this question:
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- 2.
What is the name of the device used to measure static electric charge? ___________________
Correct Answer
electroscopeExplanation
An electroscope is a device used to measure static electric charge. It consists of a metal rod with two thin, lightweight leaves at the bottom. When a charged object is brought close to the electroscope, the leaves will either repel or attract each other, indicating the presence and nature of the charge. By observing the movement of the leaves, the amount and type of static electric charge can be determined.Rate this question:
- 3.
When a negatively charged object and a positively charged object are brought together, electrons transfer until both objects have the same charge. This is known as static cling.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
It is known as Static DischargeRate this question:
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- 4.
The attraction or repulsion between charges.
- A.
Electric field
- B.
Electric force
- C.
Electric snatching
- D.
Energy
Correct Answer
B. Electric forceExplanation
Electric force refers to the attraction or repulsion between charges. It is the fundamental force that governs the interaction between charged particles. This force is responsible for the movement of electrons in electrical circuits and the behavior of charged objects. Electric force is described by Coulomb's law, which states that the force between two charges is directly proportional to the product of their magnitudes and inversely proportional to the square of the distance between them.Rate this question:
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- 5.
Name the 3 ways that charges can be transferred. ______________, ________________, ________________.
Correct Answer
Friction Conduction InductionExplanation
Charges can be transferred through friction, conduction, and induction. Friction occurs when two objects rub against each other, causing the transfer of charges. Conduction happens when charges are transferred through direct contact between objects. Induction occurs when charges are redistributed within an object without direct contact with another charged object.Rate this question:
- 6.
Static Electricity can...
- A.
Make a sock stick to a blanket
- B.
Run through a wire
- C.
Buildup on a person's hair
- D.
Catch mice
Correct Answer(s)
A. Make a sock stick to a blanket
C. Buildup on a person's hairExplanation
Static electricity is a phenomenon that occurs when there is an imbalance of electric charges on the surface of objects. When static electricity is present, it can cause objects to stick together, such as a sock sticking to a blanket. This is because the charges on the objects attract each other. Additionally, static electricity can cause a buildup of charges on a person's hair, causing it to stand on end or appear "staticky".Rate this question:
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- 7.
The Law of ____________________________________ states that Charges are neither created or destroyed, they are only transferred.
- A.
Electricity
- B.
McCurdy Rules
- C.
Conservation of Charge
- D.
Static Cling
Correct Answer
C. Conservation of ChargeExplanation
The Law of Conservation of Charge states that charges are neither created nor destroyed, but only transferred. This means that the total amount of electric charge in a closed system remains constant. In other words, charge is conserved in any physical process, and it can only be transferred from one object to another. This principle is fundamental in understanding the behavior of electric currents and the interaction between charged objects.Rate this question:
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- 8.
Lightning is a form of static discharge.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Lightning is a form of static discharge because it occurs when there is a buildup of electrical charge in the atmosphere, typically between a cloud and the ground or between two clouds. This buildup of charge creates an imbalance, and when the electrical potential difference becomes too great, it is discharged in the form of a lightning bolt. This discharge releases a large amount of energy in a very short amount of time, resulting in the characteristic bright flash and loud thunder associated with lightning.Rate this question:
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- 9.
Like charges _________________.
Correct Answer
Repel
Push awayExplanation
Like charges repel each other because they have the same type of charge, either positive or negative. According to the principle of electrostatics, opposite charges attract each other while like charges repel. This occurs because the charges create electric fields around them, and when two charges with the same type of charge come close, their electric fields interact and push each other away. This phenomenon is fundamental to understanding the behavior of electric charges and is a key principle in electromagnetism.Rate this question:
- 10.
A short circuit is
- A.
A circuit which has a really short wire.
- B.
When an unintended low-resistance path is created in an electrical circuit.
- C.
A robot that can mow your lawn.
- D.
When a computer blows up.
Correct Answer
B. When an unintended low-resistance path is created in an electrical circuit.Explanation
A short circuit is a circuit that allows the current to take the path of least resistance. It is an electrical malfunction that occurs when an unintended low-resistance path is created in an electrical circuit. This path allows electrical current to flow outside its intended route, often bypassing the load or component it's supposed to power. This can lead to excessive current flow, overheating, and potentially damaging or destroying the circuit components. It is important to prevent and fix short circuits to ensure the safe and proper functioning of electrical circuits.Rate this question:
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- 11.
The 3rd prong on a plug in is known as the circuit breaker.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The 3rd prong on a plug-in is not known as the circuit breaker. The 3rd prong on a plug-in is actually known as the ground prong. It is designed to provide an additional path for electrical current to flow in the event of a fault, such as a short circuit or electrical overload. The circuit breaker, on the other hand, is a device located in the electrical panel that is designed to protect the electrical circuit from damage caused by excessive current flow. It automatically interrupts the flow of electricity when it detects an overload or short circuit, preventing damage to the wiring and potential electrical hazards.Rate this question:
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- 12.
A _____________ is a device that contains a thin strip of metal that will melt if there is too much current through it.
Correct Answer
fuseExplanation
A fuse is a safety device that is designed to protect electrical circuits from excessive current. It consists of a thin strip of metal, typically made of copper or silver, that is designed to melt and break the circuit if there is an overload or short circuit. This melting of the metal strip opens the circuit and prevents further damage to the electrical components. Fuses are commonly used in electrical systems to prevent fires and other hazards caused by excessive current flow.Rate this question:
- 13.
Electric shocks can interfere with the body because.
- A.
They can travel through water
- B.
Our involuntary functions are run on electrical impulses (heart rate etc..)
- C.
Most people are immune to electric shocks
Correct Answer
B. Our involuntary functions are run on electrical impulses (heart rate etc..)Explanation
Electric shocks can interfere with the body because our involuntary functions are run on electrical impulses. The human body relies on electrical signals to regulate various processes, such as heart rate, muscle contractions, and nerve function. When an electric shock passes through the body, it can disrupt these electrical impulses, leading to irregularities in these vital functions. This interference can have serious consequences and potentially be life-threatening.Rate this question:
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- 14.
A circuit breaker is a reusable safety switch.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
A circuit breaker is a reusable safety switch that automatically shuts off the flow of electricity in a circuit when it detects an overload or short circuit. It is designed to protect electrical circuits and prevent damage to appliances or electrical systems. Unlike a fuse, which needs to be replaced after it blows, a circuit breaker can be reset and reused multiple times. This makes it a convenient and cost-effective safety device for homes and buildings.Rate this question:
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- 15.
You should always keep water near your computer incase it starts on fire.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Keeping water near your computer is not recommended in case it starts on fire. Water is a conductor of electricity and can cause further damage or harm if it comes into contact with live electrical components. In case of a fire, it is advised to use a fire extinguisher specifically designed for electrical fires or to disconnect the power source and call for professional help.Rate this question:
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- 16.
You can plug a maximum of 10 plugs into one outlet
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The statement is false because the number of plugs that can be plugged into one outlet depends on the capacity of the outlet and the power requirements of the devices being plugged in. It is not a fixed maximum of 10 plugs for all outlets. Some outlets may have a higher capacity and can accommodate more plugs, while others may have a lower capacity and can only handle fewer plugs.Rate this question:
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- 17.
The severity of a shock is more determined by the current of the circuit rather than the voltage.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The severity of a shock is determined by the amount of current that flows through the body, rather than the voltage. While voltage is responsible for driving the current, it is the current itself that poses the greatest risk of harm to a person. Even low voltages can be dangerous if they result in a high current passing through the body, while high voltages may not cause harm if the current is limited. Therefore, it is more accurate to say that the severity of a shock is determined by the current of the circuit.Rate this question:
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- 18.
Only this part of the atom is what can be transferred.
- A.
Electrons
- B.
Protons
- C.
Neutrons
Correct Answer
A. ElectronsExplanation
Electrons are the only part of the atom that can be transferred. This is because electrons are negatively charged and can move between atoms, creating an electrical current. Protons and neutrons, on the other hand, are located in the nucleus of the atom and are not easily transferred between atoms. Therefore, electrons are the correct answer as they are the only part of the atom that can be transferred.Rate this question:
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- 19.
An electron has this type of charge.
- A.
Positive
- B.
Negative
- C.
Neutral
Correct Answer
B. NegativeExplanation
An electron has a negative charge. This is because electrons are negatively charged subatomic particles that orbit the nucleus of an atom. The opposite charge of an electron is a positive charge, which is found in protons. Neutrons, on the other hand, have no charge and are considered neutral. Therefore, the correct answer is negative.Rate this question:
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- 20.
If an object loses electrons its charge is said to be what?
- A.
Positive
- B.
Negative
- C.
Neutral
Correct Answer
A. PositiveExplanation
When an object loses electrons, it means that it has more protons than electrons, resulting in a net positive charge. Therefore, the correct answer is positive.Rate this question:
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- 21.
The strength of an electric field is determined by.
- A.
How much friction is created
- B.
How close the electric field lines are to each other
- C.
How much it lifts weights
Correct Answer
B. How close the electric field lines are to each otherExplanation
The strength of an electric field is determined by how close the electric field lines are to each other. Electric field lines represent the direction and magnitude of the electric field at different points in space. The closer the field lines are to each other, the stronger the electric field is in that region. This is because the density of field lines indicates the intensity of the electric field. Therefore, the proximity of electric field lines is a measure of the strength of the electric field.Rate this question:
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- 22.
If an object gains electrons it is positively charged.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
It is negatively charged.Rate this question:
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- 23.
Charging by ___________________ is when two objects come near each other but do not touch.
Correct Answer
InductionExplanation
Charging by induction is a process in which two objects come close to each other without touching. In this process, one object becomes positively charged while the other becomes negatively charged. This occurs due to the redistribution of charges within the objects, caused by the presence of an external charged object. The process of induction does not require direct contact between the objects, making it a suitable explanation for the given statement.Rate this question:
- 24.
Socks being shuffled across the floor is an example of charging by conduction.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
frictionRate this question:
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Nov 06, 2023Quiz Edited by
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Dec 15, 2010Quiz Created by
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