What fundamental scientific principle states that "every object in the universe attracts every other object"?
Newton's Law of Universal Gravitation(NLUG)

Flashcard
•
Physics
•
10th - 12th Grade
•
Easy
Michael Belmonte
Used 1+ times
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32 questions
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1.
FLASHCARD QUESTION
Front
Back
Law of Universal Gravitation
Answer explanation
The Law of Universal Gravitation, formulated by Isaac Newton, states that every object in the universe attracts every other object with a force proportional to their masses and inversely proportional to the square of the distance between them.
2.
FLASHCARD QUESTION
Front
Calculate the gravitational force between two objects when they are 0.750 m apart. Each object has a mass of 5.00 kg.
Back
2.96 x 10-7 N
Answer explanation
Using the formula F = G(m1*m2)/r^2, where G = 6.674x10^-11 N(m/kg)^2, m1 = m2 = 5.00kg, and r = 0.750m, we calculate F to be approximately 2.96x10^-7 N, confirming the correct choice.
3.
FLASHCARD QUESTION
Front
Two objects are attracted to each other with a gravitational force of 36 N. What would the force between them be if the distance between them were doubled?
Back
9 N
Answer explanation
According to the inverse square law of gravitation, if the distance is doubled, the force is reduced by a factor of 4. Thus, 36 N / 4 = 9 N. Therefore, the new gravitational force is 9 N.
4.
FLASHCARD QUESTION
Front
What two factors affect the magnitude of the gravitational force between objects?
Back
Mass and distance.
Answer explanation
The force of gravity between two objects is determined by their mass and the distance between them. Greater mass increases gravitational force, while greater distance decreases it, making 'mass and distance' the correct factors.
5.
FLASHCARD QUESTION
Front
Gravity attracts all objects towards one another.
Back
True
Answer explanation
The statement is true because gravity is a fundamental force that attracts all objects with mass towards each other, regardless of their size or distance.
6.
FLASHCARD QUESTION
Front
Complete the following statement: The farther away two planets are, the _______ the gravitational force between them.
Back
less
Answer explanation
The gravitational force between two planets decreases as the distance between them increases, according to Newton's law of universal gravitation. Therefore, the correct completion is 'less'.
7.
FLASHCARD QUESTION
Front
Which configuration will result in the greatest gravitational force? Options: small masses far apart, large masses far apart, small masses close together, large masses close together.
Back
Large masses close together.
Answer explanation
The gravitational force is directly proportional to the product of the masses and inversely proportional to the square of the distance between them. Therefore, large masses close together create the greatest gravitational force.
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