Trivia On Physics Test!
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Questions and Answers
- 1.
What sort of electricity do you get when you rub two balloons and they stick together?
- A.
Static
- B.
Sharp
- C.
Voltage
- D.
High
Correct Answer
A. StaticExplanation
When two balloons are rubbed together and stick together, it creates an imbalance of electric charges. This buildup of charges is known as static electricity. Therefore, the correct answer is "Static."Rate this question:
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- 2.
What is the word for getting rid of electrical charges by transferring it?
- A.
Pinting
- B.
Grinding
- C.
Grounding
- D.
Pounding
Correct Answer
C. GroundingExplanation
Grounding is the process of getting rid of electrical charges by transferring them to the ground. It involves connecting an electrical device or circuit to the earth through a conductor, usually a wire. This helps to prevent the buildup of static electricity, reduce the risk of electrical shocks, and protect equipment from damage caused by electrical surges.Rate this question:
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- 3.
Which of these might be put on a tall building to prevent damage from lightning strikes?
- A.
Lightning Resistor
- B.
Static Cling
- C.
Transformer
- D.
Lightning Rod
Correct Answer
D. Lightning RodExplanation
A lightning rod is a device that is commonly installed on tall buildings to prevent damage from lightning strikes. It works by providing a path of least resistance for the lightning to follow, directing the electrical discharge safely into the ground. The rod is typically made of a conductive material, such as copper or aluminum, and is connected to a grounding system. When lightning strikes, the rod attracts the electrical charge and channels it away from the building, reducing the risk of damage or fire caused by the high voltage.Rate this question:
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- 4.
What word means a loss of electrical power?
- A.
Whiteout
- B.
Static
- C.
Blackout
- D.
Bolt
Correct Answer
C. BlackoutExplanation
A blackout refers to a loss of electrical power. During a blackout, there is a complete or partial interruption in the supply of electricity, resulting in a temporary loss of power in a specific area or even an entire region. This can be caused by various factors such as equipment failure, severe weather conditions, or intentional actions. During a blackout, lights, appliances, and other electrical devices cease to function until power is restored.Rate this question:
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- 5.
What type of material is rubber, in terms of electrical flow?
- A.
Insulator
- B.
Conductor
- C.
Static
- D.
Physical
Correct Answer
A. InsulatorExplanation
Rubber is classified as an insulator in terms of electrical flow. This means that it does not conduct electricity easily and is not a good conductor. Insulators have high resistance to the flow of electric current, preventing the movement of electrons through them. Rubber's molecular structure and properties make it a good insulator, as it does not allow the free movement of electrons.Rate this question:
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- 6.
What material gets hot when electricity flows through it and resists the flow?
- A.
Resistors
- B.
Waves
- C.
Transmit
- D.
Radios
Correct Answer
A. ResistorsExplanation
Resistors are materials that get hot when electricity flows through them and resist the flow. They are designed to have a specific resistance, which is a measure of how much the material resists the flow of electric current. When current passes through a resistor, it encounters resistance, causing the resistor to heat up. This property makes resistors useful in various electronic applications, such as controlling the amount of current in a circuit or converting electrical energy into heat.Rate this question:
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- 7.
What simple line drawings do people use to represent the electric flow?
- A.
Circus Peanuts
- B.
Circuit Diagrams
- C.
Blueprints
- D.
Cheese Cloths
Correct Answer
B. Circuit DiagramsExplanation
Circuit diagrams are simple line drawings that people use to represent the flow of electricity. They consist of symbols and lines that represent different components and connections in an electrical circuit. These diagrams are commonly used by engineers, electricians, and technicians to design, analyze, and troubleshoot electrical systems. They provide a visual representation of how the circuit is structured and how electricity flows through it, making it easier to understand and work with complex electrical systems.Rate this question:
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- 8.
Which of the following is used to control the amount of current flowing?
- A.
Pencil
- B.
Line
- C.
Fuse
- D.
Trap
Correct Answer
C. FuseExplanation
A fuse is used to control the amount of current flowing in a circuit. It is a safety device that contains a thin wire that melts when too much current passes through it. When the wire melts, it breaks the circuit and stops the flow of electricity, protecting the circuit and preventing damage or fire. Fuses are commonly used in electrical systems to prevent overloading and short circuits.Rate this question:
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- 9.
What piece of material attracts iron and some other metals?
- A.
Sandstone
- B.
Moon Rock
- C.
Magnet
- D.
Granite
Correct Answer
C. MagnetExplanation
A magnet is a piece of material that attracts iron and some other metals. It has a special property called magnetism, which causes it to exert a force on certain materials. When a magnet comes into contact with iron or other magnetic materials, it creates a magnetic field that pulls the objects towards it. This phenomenon is widely used in various applications, such as in compasses, electric motors, and magnetic storage devices.Rate this question:
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- 10.
What is the device that makes alternating current called?
- A.
Electroshocker
- B.
Generator
- C.
Guitar
- D.
Plug In
Correct Answer
B. GeneratorExplanation
A generator is a device that converts mechanical energy into electrical energy. It is specifically designed to produce alternating current (AC), which is the type of current commonly used in homes and businesses. The other options listed, such as electroshocker, guitar, and plug-in, are not devices that generate alternating current.Rate this question:
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- 11.
What device is made of several cells connected in series?
- A.
Single
- B.
Tape Dispenser
- C.
Series Of Events
- D.
Battery
Correct Answer
D. BatteryExplanation
A battery is made up of several cells connected in series. Each cell within a battery produces a small amount of electrical energy, and when these cells are connected in series, their voltages add up to create a larger overall voltage. This allows the battery to provide a higher amount of electrical energy, making it a suitable device for powering various electronic devices.Rate this question:
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- 12.
What do we call the machine that helps control the heart muscle's regularity?
- A.
Clock
- B.
Pendulum
- C.
Pacemaker
- D.
Watch
Correct Answer
C. PacemakerExplanation
A pacemaker is a medical device that helps control the heart muscle's regularity. It is implanted in the chest to regulate the heart's electrical signals and ensure a normal heart rate. The other options, such as a clock, pendulum, or watch, do not have any role in controlling the heart's regularity.Rate this question:
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- 13.
What is the potential energy in the nucleus of an atom called?
- A.
Electrical Energy
- B.
Fossil Energy
- C.
Under Energy
- D.
Nuclear Energy
Correct Answer
D. Nuclear EnergyExplanation
The potential energy in the nucleus of an atom is called nuclear energy. This is the energy that holds the protons and neutrons together in the nucleus. It is released through nuclear reactions such as fission or fusion, which convert a small amount of mass into a large amount of energy. Nuclear energy is used in power plants to generate electricity, and it is also the source of energy in nuclear weapons.Rate this question:
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- 14.
What is the rapid back-and-forth movement that can cause sound called?
- A.
Hearing
- B.
Whooshing
- C.
Swirling
- D.
Vibration
Correct Answer
D. VibrationExplanation
Vibration refers to the rapid back-and-forth movement that can cause sound. When an object vibrates, it creates waves in the surrounding medium, which are then perceived as sound by the ears. This movement is essential for the transmission of sound waves and is responsible for the production of sound in various objects and organisms.Rate this question:
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- 15.
What was the first sound-recording device called?
- A.
Photograph
- B.
Telegraph
- C.
Phonograph
- D.
Telephone
Correct Answer
C. PhonographExplanation
The correct answer is Phonograph. The phonograph was the first sound-recording device invented by Thomas Edison in 1877. It used a rotating cylinder covered in tin foil to record and play back sound. This invention revolutionized the way sound could be captured and reproduced, laying the foundation for modern audio recording technology. The other options, photograph, telegraph, and telephone, are not sound-recording devices but rather related to other forms of communication or image capturing.Rate this question:
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Nov 16, 2023Quiz Edited by
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May 18, 2015Quiz Created by
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