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प्रश्न
Name the type of energy (kinetic energy K or potential energy U) possessed in the given cases:
A moving cricket ball
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उत्तर
Kinetic energy (K)
संबंधित प्रश्न
A cyclist doubles his speed. How will his kinetic energy change: increase, decrease or remain same ?
Name the type of energy (kinetic or potential) possessed by the following:
A moving bus.
MULTIPLE CHOICE TYPE:
The ultimate source of energy is:
(a) wood
(b) wind
(c) water
(d) sun
Show that the quantity 2K/v2 has the unit of mass, where K is the kinetic energy of the body.
A body of mass 5 kg falls from a height of 10 m to 4 m. Calculate:
The total energy possessed by the body at any instant? (Take g = 10 ms-2).
Name the two groups in which various sources of energy are classified?
State the energy changes which take place when:
An air gun is loaded and then fired.
State the energy changes which take place when:
A magnesium ribbon burns in air.
Give one example when:
Electric energy changes to potential energy.
A ball of mass 200 g falls from a height of 5 m. What will be its kinetic energy when it just reaches the ground? (g = 9.8 m s−2)
