Physics

Grade-10

Easy

Question

# The gravitational force causes ____.

- High and low tides
- The motion of celestial bodies
- Both 1 and 2
- None of the above

Hint:

### The gravity of the earth pulls all objects towards the centre. Not only the objects on earth but also the surrounding objects too.

## The correct answer is: Both 1 and 2

### The correct option is c)Both 1 and 2.

The high tide and low tide are caused by the moon. The moon's gravitational pull creates what are known as tidal forces. Tidal forces cause the Earth and its water to bulge on the side closest to the Moon and on the side furthest from it.

Gravity keeps the planets in orbit around the sun and the moon in orbit around the earth. The gravitational pull of the moon pulls the oceans, causing tides. Gravity creates stars and planets by pulling the matter that makes them up.

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### The force with which the Earth pulls a body of mass 1 kg is ___ N

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### The value of the universal gravitational constant, G, is 6.673 x 10^{-11} Nm^{2}/kg^{2} for ____.

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