14 Questions Available
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Force applied on an object may change its speed. How?
Why Porters wear turbans when they have to carry heavy loads on their heads?
Why is it easier to walk on soft sand if we have flat shoes rather than shoes with sharp heels (or pencil heels)?
What is pressure? How is pressure related to the surface area on which it acts?
Why the sucker sticks to the surface over which it is pressed?
What is change in state of motion? What brings change in state of motion?
Give two example each of the situation in which you apply force to change state of motion of an object and to change shape of an object?
What is force? State the difference between contact force and non-contact force.
Why is it difficult to hold a school bag having a strap made of a thin and strong string?
Why lorries and trucks carrying heavy loads have 8 tyres instead of four?
What is pressure? What is the relation of pressure with area on which it is applied?
What is force? What is its unit?
What is the difference between contact forces and non-contact forces?
Define the different types of forces.
