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 10
A 2 kg object is dropped from a height. Ignoring air resistance, what is its acceleration as it falls?
A 5 kg object is taken from Earth to Mars, where gravity is 3.7 m/s². What is its weight on Mars?
Calculate the gravitational force between two 10 kg masses separated by 2 meters. (Use G = 6.67 × 10⁻¹¹ N·m²/kg²)
Calculate the weight of a 60 kg person on Earth. (g = 9.8 m/s²)
Describe how gravity affects the motion of comets in the solar system.
Describe how gravity affects tides on Earth.
Describe what would happen to the gravitational force between two objects if both their masses are halved.
Explain why gravitational force is weaker between objects that are farther apart.
Explain why objects of different masses fall at the same rate in a vacuum.
Explain why satellites stay in orbit around Earth.
Explain why the gravitational force between the Earth and the Sun is much greater than between the Earth and the Moon.
Explain why the gravitational force between two objects is considered a non-contact force.
If an object is taken to a planet with twice Earth's gravity, what happens to its weight?
If the gravitational force between two objects is 20 N and the distance between them is doubled, what is the new force?
If the mass of Earth were halved, what would happen to the weight of objects on its surface?
If the mass of one object is doubled, how does the gravitational force between two objects change?
State Newton's Law of Universal Gravitation.
What is the value of the universal gravitational constant (G) in SI units?
What would happen to Earth's orbit if the Sun's mass suddenly doubled?
