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What are the disadvantages of friction?
PhysicsDynamics
Describe the advantages of friction?
PhysicsDynamics
Write a dream during which you are driving a car and suddenly the friction disappears. What happened next…?
PhysicsDynamics
Describe the situation in daily life in which friction is most desirable?
PhysicsDynamics
Explain breaking force and skidding of vehicles?
PhysicsDynamics
Why a cyclist applies brakes to stop his/her bicycle?
PhysicsDynamics
Why it is dangerous to drive on a wet road?
PhysicsDynamics
Friction is a ‘necessary evil’. Comment.
PhysicsDynamics
Why ball bearings or roller bearings are used to reduce friction?
PhysicsDynamics
The first thing about a wheel is that it rolls as it moves rather than slides. This greatly reduces friction. Why?
PhysicsDynamics
Why rolling friction is less than sliding friction? OR Demonstrate that rolling friction is less than sliding friction? 
PhysicsDynamics
Describe the coefficient of friction ( µ ) between some common materials? 
PhysicsDynamics
Describe the situations in which force of friction is needed.
PhysicsDynamics
What do you know about the coefficient of friction?
PhysicsDynamics
What do you know about limiting the force of friction?
PhysicsDynamics
Why does fricopposeposes motion? OR Give the microscopic concept of friction?
PhysicsDynamics
Why bicycle stops when the cyclist stops peddling?
PhysicsDynamics
Have you noticed why a moving ball stops?
PhysicsDynamics
What do you know about friction?
PhysicsDynamics
Under which principle do rockets and jet engines work?
PhysicsDynamics
When a gun is fired it recoils. Why?
PhysicsDynamics
What is the law of conservation of momentum? OR State and explain the law of conservation of momentum?
PhysicsDynamics
Define System and Isolated system?
PhysicsDynamics
Show that $Ns = Kg \: m/s$ OR Ns = $Kg \: ms^{-1}$
PhysicsDynamics
Show the relationship between momentum and force OR Derive Newton’s Second Law of motion with the help of momentum.
PhysicsDynamics