Newton's Law of Universal Gravitation(NLUG)

Newton's Law of Universal Gravitation(NLUG)

Assessment

Flashcard

Physics

10th - 12th Grade

Easy

Created by

Michael Belmonte

Used 1+ times

FREE Resource

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32 questions

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1.

FLASHCARD QUESTION

Front

What fundamental scientific principle states that "every object in the universe attracts every other object"?

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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