Questions
A student suggests a trick for gaining profit in a business. He suggests buying organes from the mountain and selling them to Terai at the cost price. If a beam balance is used during this transaction, explain, based on scientific fact, whether his trick goes wrong or right.
A man first measures the mass and weight of an object in the mountain and then in the Terai. Compare the data that he obtains.
The acceleration due to gravity of an object of mass 1 kg in outer space is 2m/s2. What is the acceleration due to gravity of another object of mass 10 kg at the same point? Justify with arguments.
The mass of the Moon is about 1/81 times the mass of the Earth and its radius is about 37/10 times the radius of the Earth. If the earth is squeezed to the size of the moon, what will be the effect on its acceleration due to gravity? Explain with the help of mathematical calculation.
The acceleration due to the gravity on the Earth's surface is 9.8 ms-2. What does this mean?
Mention the factors that influence acceleration due to gravity.
Prove that acceleration due to the gravity of the Earth is inversely proportional to the square of its radius $\rm \left ( g \propto \frac{1}{R^2} \right )$.
Mention any four effects of gravitational force.
What is weightlessness?
Write the conclusions of the feather and coin experiment.