Physics
Grade-10
Easy
Question
In which direction does a falling object on the earth move?
- Towards the earth
- Towards the center of the earth
- Tangentially
- Normally outward from the earth
Hint:
Earth has gravity. Which part of earth responsible for gravity?
The correct answer is: Towards the center of the earth
The correct option is b)Towards the center of the earth
The gravitational pull exerted by the earth is very strong. This force pulls all objects on Earth toward its center. As such, all objects on Earth tend to fall toward the center of the Earth. The Earth's mass is spherically symmetrical and gravity is directed towards the center of gravity.
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Which of the following is true about the centripetal force?
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Joseph wanted to study the dependence of the gravitational force of attraction between two bodies on the mass of one body. Therefore, he did the required calculations by keeping the mass of the first body and their distance of separation constant and simply varying the mass of the second body. He calculated the value of the gravitational force between those two bodies 10 times by taking different masses for the second body. He then plotted a graph of the calculated data taking the force along the y-axis and the mass of the second body along the x-axis. How would the graph look like?
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