Physics Quiz For Grade 9 Students
Step into the captivating world of physics with our Grade 9 Physics Quiz, designed to ignite curiosity and test your understanding of fundamental concepts. Whether you're gearing up for exams or simply eager to explore the wonders of physics, this quiz offers a dynamic platform to challenge your knowledge and foster a deeper appreciation for the laws that shape our reality.
From Newton's laws of motion to the fascinating realm of energy transformations, our Grade 9 Physics Quiz covers a spectrum of topics that form the foundation of physics education. Explore the dynamics of motion, unravel the secrets of forces Read moreat play, and embark on an educational journey that sparks curiosity and critical thinking.
Challenge yourself with thought-provoking questions that encourage analytical thinking and problem-solving skills. Elevate your understanding of physics concepts and unravel the mysteries that propel the universe forward. Are you ready to embrace the world of physics? Take the Grade 9 Physics Quiz and embark on a journey of discovery!
Grade 9 Physics Questions and Answers
- 1.
The volume of a cube is
- A.
Length times width times height
- B.
Half base times height
- C.
22/7 times the square of the radius
- D.
Length times length times length
Correct Answer
D. Length times length times lengthExplanation
The correct answer is "Length times length times length" because the volume of a cube is calculated by multiplying the length of one side by itself three times. Since all sides of a cube are equal in length, multiplying the length by itself three times will give us the total volume of the cube.Rate this question:
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- 2.
Static Electricity is
- A.
Electricity produced by carpets
- B.
Electricity from charges on a surface of an object
- C.
Electricity in cell phones
- D.
A shock you receive
Correct Answer
B. Electricity from charges on a surface of an objectExplanation
Static electricity refers to the accumulation of electric charges on the surface of an object. These charges are typically generated through friction or contact with another charged object. Unlike current electricity, which flows in a continuous circuit, static electricity remains stationary until it is discharged through a conductor. This phenomenon can be observed when objects such as clothing or hair cling together or when a person experiences a shock after walking on a carpeted floor. Therefore, the correct answer is "Electricity from charges on a surface of an object."Rate this question:
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- 3.
Which of the following is the strongest conductor?
- A.
Iron
- B.
Wood
- C.
Plastic
- D.
Air
Correct Answer
A. IronExplanation
Among the options provided, iron is the strongest conductor. Iron is a metal and generally has high electrical conductivity compared to non-metallic materials like wood, plastic, and air. Metals, in general, are good conductors of electricity because they have a high density of free electrons that can move easily through the material in response to an electric field. Iron, being a metal, exhibits strong conductivity and is commonly used in electrical applications where conductivity is a critical factor.Rate this question:
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- 4.
Which of these are dangers from static electricity?
- A.
Air
- B.
Copying
- C.
Fires
- D.
Rain
Correct Answer
C. FiresExplanation
Static electricity can cause fires because when there is a buildup of static charge on a surface, it can create sparks if it comes into contact with a flammable material. These sparks can ignite the flammable material and start a fire. This is why it is important to be cautious when handling flammable substances in environments where static electricity is present, such as in industries involving chemicals or fuels.Rate this question:
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- 5.
Marcus received an electric shock while walking on a carpet and touching a doorknob. The static electricity was produced by
- A.
Induction
- B.
Conduction
- C.
Friction
- D.
None of the above
Correct Answer
C. FrictionExplanation
Friction is the correct answer because when Marcus walked on the carpet, the friction between his shoes and the carpet caused the buildup of static electricity. This buildup of static electricity was then discharged when he touched the doorknob, resulting in the electric shock. Induction and conduction are not the correct answers because they do not involve the physical contact and rubbing that occurs during friction.Rate this question:
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- 6.
Which of these can be used to measure current?
- A.
Voltmeter
- B.
Ammeter
- C.
Resistor
- D.
Speedometer
Correct Answer
B. AmmeterExplanation
An ammeter is used to measure the current flowing through a circuit. It is connected in series with the circuit, allowing the current to pass through it. The ammeter measures the current by detecting the magnetic field produced by the flowing current. Therefore, an ammeter is the correct instrument to measure current.Rate this question:
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- 7.
Symbol Below is
- A.
Diode
- B.
LED
- C.
Resistor
- D.
Lamp
Correct Answer
B. LEDExplanation
The symbol below represents an LED (Light Emitting Diode). An LED is a semiconductor device that emits light when an electric current passes through it. It is commonly used in electronic devices for indicators, displays, and lighting purposes. The symbol consists of an arrow pointing towards a horizontal line, which represents the flow of current and the emission of light. The other options mentioned, such as diode, resistor, and lamp, do not match the symbol provided.Rate this question:
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- 8.
The following circuit is a
- A.
Series Circuit
- B.
Parallel Circuit
- C.
Combined Circuit
- D.
Computer Circuit
Correct Answer
B. Parallel CircuitExplanation
The given circuit is a parallel circuit because it consists of multiple branches where the current can flow through different paths. In a parallel circuit, the voltage across each branch remains the same, while the current divides among the branches. This is different from a series circuit where the current flows through each component in a single path. Since the question does not provide any specific details about the circuit, we can infer that it is a parallel circuit based on the given options.Rate this question:
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- 9.
Batteries are the only sources that produces electricity
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The statement "Batteries are the only sources that produce electricity" is not correct. While batteries are a common source of electricity, there are many other sources as well, such as power plants, solar panels, wind turbines, and generators. These sources can also generate electricity and are not limited to batteries alone. Therefore, the correct answer is False.Rate this question:
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- 10.
Accidents only happen when power is on
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
This statement is false because accidents can happen even when the power is off. Accidents can occur due to various factors such as human error, mechanical failures, natural disasters, or other unforeseen circumstances. Therefore, it is incorrect to assume that accidents only occur when the power is on.Rate this question:
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- 11.
You should let electricity stay on during a fire
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
It is not advisable to let electricity stay on during a fire because it can increase the risk of electrocution and further fuel the fire. When a fire breaks out, it is important to immediately cut off the power supply to prevent any electrical sparks or short circuits that can worsen the situation. Turning off the electricity also helps to protect firefighters and individuals attempting to extinguish the fire.Rate this question:
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- 12.
Lightning is produced by friction of ice particles
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Lightning is produced by the friction of ice particles. When ice particles collide with each other within a thunderstorm, they create an electric charge. This charge separates into positive and negative regions, with the positive charge accumulating at the top of the storm and the negative charge accumulating at the bottom. This separation of charges creates an electric field, and when the electric field becomes strong enough, it causes a discharge of electricity in the form of lightning. Therefore, the statement that lightning is produced by friction of ice particles is true.Rate this question:
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Quiz Review Timeline +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
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Current Version
-
Nov 08, 2024Quiz Edited by
ProProfs Editorial Team
Expert Reviewed by
Matt Balanda -
Mar 30, 2020Quiz Created by
Emeille
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