Master the Basics: Newtonian Constant of Gravitation Quiz
Welcome to our Newtonian Constant of Gravitation Quiz! This quiz delves into the fundamental principles of gravity, focusing on Newton's Law of Universal Gravitation and the role of the gravitational constant. Test your understanding of how mass, distance, and gravitational force are interconnected in the cosmos. Explore questions about the symbol and SI unit, its numerical value, and its applications in various fields such as astronomy, physics, and engineering.
Challenge yourself with scenarios that illustrate the inverse square law and its implications for gravitational interactions. Discover the historical significance of experiments like the Cavendish experiment in confirming Newton's groundbreaking insights Read moreinto gravity. The quiz is designed to test your basics on the topic.
Our Newtonian Constant of Gravitation Quiz offers an engaging opportunity to deepen your knowledge and appreciation of one of the fundamental forces shaping our world. Are you ready for the challenge?
Newtonian Constnat of Gravitation Questions and Answers
- 1.
What is the symbol for the Newtonian constant of gravitation?
- A.
G
- B.
K
- C.
M
- D.
F
Correct Answer
A. GExplanation
The symbol for the Newtonian constant of gravitation is G. In physics, symbols are used to represent physical quantities, and G represents the gravitational constant. This constant is a fundamental part of Newton's Law of Universal Gravitation, describing the strength of the gravitational force between two objects.Rate this question:
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- 2.
The SI unit for the Newtonian constant of gravitation is:
- A.
Meters squared per kilogram squared
- B.
Newtons squared per meter squared
- C.
Kilograms squared per meter cubed
- D.
Newtons meters squared per kilogram squared
Correct Answer
D. Newtons meters squared per kilogram squaredExplanation
The SI unit for the Newtonian constant of gravitation is newtons meters squared per kilogram squared. This complex unit reflects the dimensions of the gravitational constant G, highlighting its role in determining the force of gravity between masses when expressed in the SI unit system.Rate this question:
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- 3.
The value of the Newtonian constant of gravitation is approximately:
- A.
6.6743 x 10^-10 m^3/kg^2
- B.
6.6743 x 10^-11 m^3/kg^2
- C.
6.6743 x 10^-12 m^3/kg^2
- D.
6.6743 x 10^-13 m^3/kg^2
Correct Answer
B. 6.6743 x 10^-11 m^3/kg^2Explanation
The value of the Newtonian constant of gravitation is approximately 6.6743 x 10^-11 m^3/kg^2. This numerical value quantifies the strength of the gravitational force and is crucial in various scientific calculations, ranging from celestial mechanics to understanding the interactions between everyday objects.Rate this question:
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- 4.
According to Newton's Law of Universal Gravitation, the gravitational force between two objects is directly proportional to:
- A.
The product of their masses
- B.
The sum of their masses
- C.
The difference of their masses
- D.
The square of their masses
Correct Answer
A. The product of their massesExplanation
According to Newton's Law of Universal Gravitation, the gravitational force between two objects is directly proportional to the product of their masses. This fundamental principle states that the force of gravity is influenced by the masses of the interacting objects, with a higher mass leading to a stronger gravitational attraction.Rate this question:
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- 5.
The gravitational force between two objects is inversely proportional to:
- A.
The product of their radii
- B.
The sum of their radii
- C.
The square of the distance between their centers
- D.
The cube of the distance between their centers
Correct Answer
C. The square of the distance between their centersExplanation
The gravitational force between two objects is inversely proportional to the square of the distance between their centers. This inverse square law signifies that as the distance between two masses increases, the gravitational force weakens proportionally to the square of that distance, providing insights into the nature of gravitational interactions.Rate this question:
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- 6.
If the distance between two objects doubles, the gravitational force between them:
- A.
Decreases by a factor of 2
- B.
Decreases by a factor of 4
- C.
Increases by a factor of 2
- D.
Increases by a factor of 4
Correct Answer
B. Decreases by a factor of 4 -
- 7.
What is the gravitational force between a mass of 1 kg and a mass of 2 kg separated by a distance of 1 meter?
- A.
1.33486×10 ^ −10 N
- B.
6.6743 x 10^-11 N
- C.
19.6 N
- D.
6.6743 x 10^-7 N
Correct Answer
A. 1.33486×10 ^ −10 N -
- 8.
Which of the following factors does NOT affect the gravitational force between two objects?
- A.
Their composition
- B.
Their distance
- C.
Their masses
- D.
The presence of other objects
Correct Answer
A. Their compositionExplanation
The following factor does NOT affect the gravitational force between two objects: their composition. According to the Law of Universal Gravitation, the nature or composition of the objects involved does not influence the gravitational force between them. Gravity acts universally on all objects regardless of their composition.Rate this question:
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- 9.
The acceleration due to gravity on Earth is approximately:
- A.
9.8 m/s^2
- B.
10 m/s^2
- C.
11 m/s^2
- D.
12 m/s^2
Correct Answer
A. 9.8 m/s^2Explanation
The acceleration due to gravity on Earth is approximately 9.8 m/s^2. This value represents the acceleration experienced by objects in free fall near the surface of the Earth, demonstrating the gravitational force's impact on objects in the planet's gravitational field.Rate this question:
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- 10.
What is the escape velocity from the surface of Earth?
- A.
11.2 km/s
- B.
7.9 km/s
- C.
9.8 km/s
- D.
4.9 km/s
Correct Answer
A. 11.2 km/sExplanation
The escape velocity from the surface of Earth is 11.2 km/s. This speed is required for an object to overcome Earth's gravitational pull and enter space without falling back. Escape velocity is determined by the mass of the celestial body and its radius, emphasizing the role of gravity in space exploration.Rate this question:
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- 11.
What is the main limitation of using the Newtonian constant of gravitation for astronomical calculations?
- A.
It does not account for the effects of general relativity.
- B.
It assumes objects are point masses.
- C.
It does not consider the effects of dark matter.
- D.
All of the above
Correct Answer
A. It does not account for the effects of general relativity.Explanation
The main limitation of using the Newtonian constant of gravitation for astronomical calculations is that it does not account for the effects of general relativity. While Newton's Law of Universal Gravitation is highly accurate in many scenarios, it does not address the relativistic effects that become significant in extreme conditions, such as those near massive celestial bodies or at high velocities.Rate this question:
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- 12.
Which scientist first formulated the Law of Universal Gravitation?
- A.
Isaac Newton
- B.
Galileo Galilei
- C.
Johannes Kepler
- D.
Albert Einstein
Correct Answer
A. Isaac NewtonExplanation
The scientist who first formulated the Law of Universal Gravitation is Isaac Newton. Newton, a pioneering physicist and mathematician, introduced this groundbreaking law in his work "Philosophiæ Naturalis Principia Mathematica" in 1687, revolutionizing our understanding of gravity.Rate this question:
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- 13.
What experiment provided evidence for the Law of Universal Gravitation?
- A.
Cavendish experiment
- B.
Michelson-Morley experiment
- C.
Double-slit experiment
- D.
Millikan oil drop experiment
Correct Answer
A. Cavendish experimentExplanation
The Cavendish experiment provided evidence for the Law of Universal Gravitation. This landmark experiment, conducted by Henry Cavendish in 1797–1798, involved measuring the small gravitational attraction between lead spheres, confirming the predictions of Newton's law and providing crucial experimental validation.Rate this question:
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- 14.
Modern technology relies on the accurate measurement of the Newtonian constant of gravitation for applications such as:
- A.
Satellite orbits
- B.
Gravitational wave detection
- C.
GPS navigation
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
Modern technology relies on the accurate measurement of the Newtonian constant of gravitation for applications such as satellite orbits, gravitational wave detection, and GPS navigation. Precise knowledge of G is essential for calculating orbits, predicting gravitational wave characteristics, and ensuring the accuracy of global positioning systems, showcasing the practical importance of this constant in contemporary technology.Rate this question:
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- 15.
What are some current research areas related to the Newtonian constant of gravitation?
- A.
Testing its universality in different environments
- B.
Searching for deviations from its predicted value
- C.
Developing more precise measurement techniques
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
Some current research areas related to the Newtonian constant of gravitation include testing its universality in different environments, searching for deviations from its predicted value, and developing more precise measurement techniques. Ongoing scientific investigations aim to explore the constancy of G in diverse conditions, identify potential variations, and enhance measurement techniques to refine our understanding of gravity at both macroscopic and microscopic scales.Rate this question:
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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
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Feb 08, 2024Quiz Edited by
ProProfs Editorial Team -
Feb 06, 2024Quiz Created by
Surajit Dey
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