Gravitation
Physics ⇒ Mechanics
Gravitation starts at 9 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Gravitation.
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See sample questions for grade 9
A ball is dropped from a height. What is the initial velocity of the ball?
Describe what happens to the gravitational force if both masses are doubled and the distance between them is also doubled.
Explain why astronauts feel weightless in a spacecraft orbiting Earth.
Explain why the Moon does not fall onto the Earth.
Explain why the value of g is less at the equator than at the poles.
If the mass of one object is doubled, how does the gravitational force between two objects change?
If the mass of the Earth were doubled, but its radius remained the same, what would happen to the acceleration due to gravity at its surface?
If the radius of the Earth were halved, but its mass remained the same, what would happen to the value of g at its surface?
(1) The force of gravity acts only on Earth. (2) The force of gravity acts everywhere in the universe. Which statement is correct?
(1) Only statement 1
(2) Only statement 2
(3) Both statements
(4) Neither statement
Which of the following best describes the path of a projectile under gravity (ignoring air resistance)?
(1) Straight line
(2) Circular
(3) Parabolic
(4) Elliptical
Which of the following best explains why objects fall to the ground when dropped?
(1) Air pressure
(2) Gravity
(3) Magnetism
(4) Friction
Which of the following is NOT a consequence of gravity?
(1) Formation of tides
(2) Keeping planets in orbit
(3) Causing objects to float
(4) Causing objects to fall
Fill in the blank: The acceleration due to gravity on the surface of the Earth is approximately ________ m/s².
Fill in the blank: The force of gravity is always ________ (attractive/repulsive).
Fill in the blank: The gravitational force between two objects is ________ proportional to the product of their masses.
Fill in the blank: The gravitational force between two objects is ________ proportional to the square of the distance between them.
True or False: The acceleration due to gravity is the same on all planets.
True or False: The gravitational force between two objects depends on the medium between them.
True or False: The gravitational force between two objects increases as the distance between them increases.
True or False: The gravitational force between two objects is independent of the medium between them.
