|
State the factors on which buoyant force depends
|
|
0
|
3890
|
March 21, 2018
|
|
State the laws of liquid pressure
|
|
0
|
3960
|
March 21, 2018
|
|
What is power? How do you differentiate kilowatt from kilowatt hour?
|
|
0
|
1732
|
March 21, 2018
|
|
What are the factors which affect the pressure at a point in liquid?
|
|
0
|
905
|
March 21, 2018
|
|
Give an application of density. What are its units?
|
|
0
|
721
|
March 21, 2018
|
|
In the previous question, what will happen if instead of water the glass is filled with
|
|
0
|
1138
|
March 21, 2018
|
|
Calculate the work done against the gravity
|
|
0
|
734
|
March 21, 2018
|
|
A piece of ice is placed gently on the surface of water in a glass so that when the ice floats, the water conies up to the brim of the glass
|
|
0
|
1860
|
March 21, 2018
|
|
What is the relationship between the commercial unit and SI unit of energy?
|
|
0
|
2973
|
March 21, 2018
|
|
The following figure shows' three identical blocks of wood floating in three different liquids A, B and C of densities d1,d2 and d3 respectively. Which of these has the highest density? Give reason to justify your answer
|
|
0
|
3220
|
March 21, 2018
|
|
What is the commercial unit of energy?
|
|
0
|
641
|
March 21, 2018
|
|
Why does a camel walk easily on sand but it is difficult for a man to walk on sand though a camel is much heavier than a man?
|
|
0
|
12974
|
March 21, 2018
|
|
What kind of energy transformation takes place when a body is dropped from a certain height?
|
|
0
|
3104
|
March 21, 2018
|
|
State the laws of floatation
|
|
0
|
4144
|
March 21, 2018
|
|
Give one example each of potential energy (i) due to position (ii) due to shape
|
|
0
|
5678
|
March 21, 2018
|
|
A man squeezes a pin between his thumb and finger, as shown in figure
|
|
0
|
5635
|
March 21, 2018
|
|
What is energy? What is unit of energy?
|
|
0
|
645
|
March 21, 2018
|
|
During a period of hot weather, the atmospheric pressure on the pond shown in figure remains constant
|
|
0
|
3795
|
March 21, 2018
|
|
On what factors the work done on a body depends?
|
|
0
|
13719
|
March 21, 2018
|
|
Give two practical daily life applications that make use of the concept of pressure
|
|
0
|
965
|
March 21, 2018
|
|
Give two examples from everyday life where work is done
|
|
0
|
2752
|
March 21, 2018
|
|
What do you mean by thrust?
|
|
0
|
788
|
March 21, 2018
|
|
Figure shows a loudspeaker cone oscillating to produce sound waves:
|
|
0
|
3512
|
March 21, 2018
|
|
How does the weight of an object vary with respect to mass and radius of the earth?
|
|
0
|
1810
|
March 21, 2018
|
|
Show that the weight of an object on the moon is 1/6th of its weight on the earth
|
|
0
|
5787
|
March 21, 2018
|
|
Define acceleration due to gravity. Derive an expression for acceleration due to gravity in terms of mass of the earth (M) and universal gravitational constant (G)
|
|
0
|
14935
|
March 21, 2018
|
|
Derive expression for force of attraction between two bodies and then define gravitational constant
|
|
0
|
18567
|
March 21, 2018
|
|
Represent graphically any two separate diagrams in each case:
|
|
0
|
728
|
March 21, 2018
|
|
Two objects of masses m1and m2 having the same size are dropped simultaneously from heights h1 and h2, respectively
|
|
0
|
2937
|
March 21, 2018
|
|
What is meant by reflection of sound?
|
|
0
|
888
|
March 21, 2018
|