A body is falling from a height h. After it has fallen a height h /2 , it will possess
(a) only potential energy
(b) only kinetic energy
(c) half potential and half kinetic energy
(d) more kinetic and less potential energy
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(a) Name the type of energy possessed by a freely falling body of mass ‘m’ at the highest point 'h'.
(a) Potential energy, P.E. is the energy possessed by a body of mass, m after reaching a height, h. it is given by, P.E. = mgh (b) The capacity to do...
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The body of an organism is streamlined and has feathers on its body. Identify the organism and write one specific feature of it.
Aves. Specific feature of Aves is that they are warm –blooded having a four chambered heart and modified forelimbs for flight.
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Why do plant cells possess large sized vacuole?
Hint— Vacuoles not only store many important substances, they also contain cell sap that give turgidity to cell
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Internal fertilization occurs Option A: in female body. Option B: outside female body. Option C: in male body. Option D: outside male body.
Correct Option: A Internal fertilization occurs inside female body
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Comment on the statement that elements of the first transition series possess many properties
The properties of the elements of the first transition series differ from those of the heavier transition elements in many ways. (i) The atomic sizes of the elements of the first...
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Seeds of drumstick and maple are carried to long distances by wind because they possess
(a) winged seeds
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Beera, a farmer would clear his field everyday, and burn dry leaves fallen on the ground.
(i) Fumes and gases from burning materials cause cough and breathing problem (ii) Dry leaves can be used for making manure.
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A body A of mass M while falling vertically downwards under gravity breaks into two parts; a body B of mass (1/3)M and body C of mass (2/3)M.
(d) : The centre of mass of bodies B and C taken together does not shift as no external force is applied horizontally.
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A body falling vertically downwards under gravity breaks in two parts of unequal masses.
(c) does not shift horizontally Explanation: Since the body breaks due to internal forces, the center of mass of all parts taken together will remain the same and will not shift horizontally.
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A body falling vertically downwards under gravity breaks in two parts of unequal masses,
(c) does not shift horizontally Explanation: Since the body breaks due to internal forces, the center of mass of all parts taken together will remain the same and will not shift horizontally.
1 Answers 1 views