Welcome to the Quiz!
This quiz contains 10 questions from a mix of 1 subtopics.
What is the nature of the gravitational force between any two objects?
depends on the masses of the objects
always attractive
always repulsive
can be either attractive or repulsive
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If the distance between two masses is doubled, how does the gravitational force change?
doubles
halves
decreases to one quarter of the original value
increases to four times the original value
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Explain the two main factors that influence the gravitational force between two objects.
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Describe the relationship between the gravitational force and the distance between two masses.
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What is the gravitational force exerted by the Earth on a 70 kg person standing on its surface?
The radius of the Earth = 6.37 x 106 m
The mass of the Earth = 5.97 x 1024 kg
9.8 N
6,860 N
70 N
687 N
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Two identical objects each with a mass of 2kg are placed 3 m apart. What is the gravitational force between them?
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A 5kg mass is placed 40 m away from a 100 kg mass. What is the gravitational force acting between them?
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Two identical 10 kg masses are placed a distance r apart. The gravitational force between them is 2.668 x 10-10 N. Calculate the distance between the centres of the masses.
10 m
2.5 m
4 m
5 m
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What is the gravitational force between two masses of 2 kg and 5 kg respectively, if they are 3 m apart?
1.48×10−10 N
4.44×10−11 N
7.41×10−11 N
2.22×10−10 N
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Calculate the gravitational force between two planets with masses of 4×1024 kg and 6×1024 kg, respectively, if the distance between their centres is 1×108 meters.
1.60×1023 N
3.20×1023 N
2.40×1023 N
0.80×1023 N
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