10 Questions
What is the force responsible for keeping the moon in orbit around the Earth?
Centripetal force
What is the name of the force that acts on all objects with mass and causes them to be attracted to one another?
Gravitational force
What observation led Newton to discover the force of gravity?
An apple falling on him
Which law of motion helps explain why an object thrown upwards eventually falls back down to the ground?
Newton's Law of Universal Gravitation
In the context of gravitation, what does centripetal force refer to?
Force responsible for circular motion
What would happen if there was no gravitational force between the Earth and the moon?
The moon would move away from Earth
How does weight vary for an object at different locations on Earth?
Weight decreases as altitude increases
What happens to an object when the centripetal force acting on it is reduced?
It moves slower in its circular path
Which of Newton's laws explains why an object remains at rest until acted upon by an external force?
Newton's First Law
Why do all planets revolve around the Sun?
Due to gravitational attraction
Test your understanding of the universal law of gravitation, which states that the force between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. Explore how the force of attraction is calculated using the equation F = G(M*m)/d^2.
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