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.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 10
A 5 kg object is placed 2 meters away from a 10 kg object. Calculate the gravitational force between them. (Use G = 6.67 × 10-11 N·m²/kg²)
A 60 kg person stands on the surface of the Earth. What is their weight? (g = 9.8 m/s²)
A ball is dropped from a height of 20 m. Ignoring air resistance, how long does it take to reach the ground? (g = 9.8 m/s²)
A satellite is orbiting the Earth at a height where the acceleration due to gravity is 2.45 m/s². If the mass of the satellite is 1000 kg, what is its weight at that height?
A stone is thrown vertically upward with a speed of 19.6 m/s. How high will it rise? (g = 9.8 m/s²)
Describe the difference between mass and weight.
Explain why objects in a vacuum fall at the same rate regardless of their mass.
Explain why the value of g decreases as we move from the equator to the poles.
If the distance between two objects is tripled, by what factor does the gravitational force between them change?
If the mass of one object is doubled, how does the gravitational force between two objects change, assuming the distance remains the same?
If the radius of the Earth were to suddenly double, but its mass remained the same, what would happen to the value of g at the surface?
State one reason why the value of g is less on the Moon than on Earth.
State the formula for the gravitational force between two masses.
