Gravitational Effects on Earth and Space Bodies
Physics ⇒ Earth and Space Physics
Gravitational Effects on Earth and Space Bodies starts at 8 and continues till grade 12.
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See sample questions for grade 8
A planet has twice the mass of Earth but the same radius. How does its surface gravity compare to Earth's?
A satellite orbits Earth at a constant speed. What force keeps it moving in a circle?
Describe how gravity affects the tides on Earth.
Describe what would happen to a satellite if Earth's gravity suddenly became much weaker.
Explain why a ball thrown upwards on Earth eventually falls back down.
Explain why astronauts appear to float inside the International Space Station.
Explain why the gravitational force between two asteroids in space is much weaker than the force between the Earth and the Moon.
If the distance between two objects is doubled, what happens to the gravitational force between them?
Which law explains the gravitational attraction between all objects with mass? (1) Newton's First Law (2) Newton's Second Law (3) Newton's Law of Universal Gravitation (4) Law of Conservation of Energy
Which of the following best describes the effect of gravity on Earth's atmosphere? (1) It keeps the atmosphere close to Earth (2) It pushes the atmosphere away (3) It has no effect (4) It only affects the oceans
Which of the following best explains why the Moon orbits the Earth? (1) The Moon is pushed by the Sun (2) The Moon is attracted by Earth's gravity (3) The Moon has its own gravity (4) The Moon is repelled by Earth's atmosphere
Which of the following is NOT affected by gravity? (1) The motion of planets (2) The fall of an apple (3) The boiling point of water (4) The tides
Fill in the blank: The acceleration due to gravity on Earth is approximately ______ m/s².
Fill in the blank: The constant G in the law of universal gravitation is called the ______ gravitational constant.
Fill in the blank: The force of gravity is always ______; it never pushes objects apart.
Fill in the blank: The force that keeps the Moon in orbit around the Earth is called ______.
True or False: All objects, regardless of their mass, fall at the same rate in a vacuum.
True or False: Gravity can act over very large distances, such as between stars and galaxies.
True or False: Gravity is responsible for the formation of stars and planets.
True or False: Gravity is weaker on the Moon than on Earth.
