Jasvinder Kaur Randhawa Solutions for Exercise 2: TEST YOUR SKILLS

With what force (in newtons) will the body of mass $1 \mathrm{kg}$ get attracted to the earth? Answer in numbers. (Take $\mathrm{g}=9.8 \mathrm{m} {\mathrm{s}}^{-2}$)

If a ball is thrown up in the sky, what will happen to its value of ‘g’?

(Choose from: Increases/ Decreases/ Unchanged)

Mass of a dog on earth is $40 \mathrm{kg}$, what will be its mass and weight on moon?

Chose from the options given below:

The value of $g= k \mathrm{m}/{\mathrm{s}}^2$. What is the value of $k$?

Establish a relationship between $‘g’$ and$‘G’$.

A ship made of iron does not sink but the iron rod sinks in water, why?

What are fluids? Why is Archimedes’ principle applicable only for fluids? Give the application of Archimedes’ principle.

With the help of an activity prove that the force acting on a smaller area exerts a larger pressure?