Please select a subject first
Advertisements
Advertisements
The graph given alongside shows the positions of a body at different times. Calculate the speed of the body as it moves from :
(1) A to B,
(2) B to C, and
(3) C to D.
Concept: undefined >> undefined
Name the law involved in the following situation :
if there were no friction and no air resistance, then a moving bicycle would go on moving for ever.
Concept: undefined >> undefined
Advertisements
A car is travelling at 20 m/s along a road. A child runs out into the road 50 m ahead and the car driver steps on the brake pedal. What must the car’s deceleration be if the car is to stop just before it reaches the child ?
Concept: undefined >> undefined
State whether the following statement is true or false :
The buoyant force depends on the nature of object immersed in the liquid
Concept: undefined >> undefined
In which direction does the buoyant force on an object due to a liquid act ?
Concept: undefined >> undefined
What is the other name of buoyant force ?
Concept: undefined >> undefined
Name the force which makes heavy objects appear light when immersed in a liquid.
Concept: undefined >> undefined
What is the scientific name of the 'upward force' acting on an object immersed in a liquid?
Concept: undefined >> undefined
What is meant by the term ‘buoyancy’ ?
Concept: undefined >> undefined
What causes buoyant force (or upthrust) on a boat ?
Concept: undefined >> undefined
An object of weight 200 N is floating in a liquid. What is the magnitude of buoyant force acting on it ?
Concept: undefined >> undefined
Name the scientist who gave he magnitude of buoyant force acting on a solid object immersed in a liquid.
Concept: undefined >> undefined
Why does a block of wood held under water rise to the surface when released ?
Concept: undefined >> undefined
Fill in the blank with suitable word :
It is the................. force which makes objects appear lighter in water.
Concept: undefined >> undefined
What happens to the buoyant force as more and more volume of a solid object is immersed in a liquid ? When does the buoyant force become maximum ?
Concept: undefined >> undefined
Why do we feel light on our feet when standing in a swimming pool with water up to our armpits ?
Concept: undefined >> undefined
Define buoyant force. Name two factors on which buoyant force depends.
Concept: undefined >> undefined
What is the cause of buoyant force ?
Concept: undefined >> undefined
When a boat is partially immersed in water, it displaces 600 kg of water. How much is the buoyant force acting on the boat in newtons ? (g = 10 m s-2)
Concept: undefined >> undefined
