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 11
A planet has twice the mass of Earth but the same radius. How does the acceleration due to gravity on its surface compare to Earth's?
A satellite orbits Earth at a constant speed. What force keeps it in orbit?
Describe how gravity affects the shape of planets and stars.
Describe the effect of gravity on the motion of comets in the solar system.
Explain why gravitational force is considered a non-contact force.
Explain why objects of different masses fall at the same rate in a vacuum near Earth's surface.
Explain why the acceleration due to gravity is less on the Moon than on Earth.
If the distance between two planets is tripled, by what factor does the gravitational force between them change?
Which law explains the gravitational attraction between two masses? (1) Newton's First Law (2) Newton's Second Law (3) Newton's Law of Universal Gravitation (4) Kepler's Third Law
Which of the following best describes escape velocity? (1) The speed needed to orbit a planet (2) The speed needed to leave a planet's gravitational field (3) The speed of light (4) The speed of sound in air
Which of the following best describes why astronauts feel weightless while orbiting the Earth? (1) There is no gravity in space (2) They are too far from Earth (3) They are in free fall around the Earth (4) The spacecraft cancels gravity
Which of the following best explains why tides occur on Earth? (1) The rotation of the Earth (2) The gravitational pull of the Moon and Sun (3) The wind blowing over the ocean (4) The Earth's magnetic field
Fill in the blank: The force of gravity between two objects is ______ proportional to the square of the distance between them.
Fill in the blank: The gravitational force is always ______ in nature.
Fill in the blank: The value of the universal gravitational constant (G) is ______ N·m²/kg².
The acceleration due to gravity on the surface of the Earth is approximately ______ m/s².
True or False: The gravitational field strength decreases as you move away from the surface of a planet.
True or False: The gravitational force between the Sun and the Earth is equal in magnitude to the force between the Earth and the Sun.
True or False: The gravitational force between two objects depends only on their masses and the distance between them.
True or False: The gravitational force between two objects increases as the distance between them increases.
