Identify and state the type of transformation of energy in the following cases:
(a) When coal is burnt.
(b) In a thermal power plant
Answered Feb 05, 2023
(a) Chemical energy stored in coal is converted to heat energy.
(b) Chemical energy of fuel is first converted into heat energy than to kinetic energy and finally to electrical energy.
(a) concave mirror (b) convex lens (c) concave lens (d) convex mirror
(b) larger amount of potential energy is converted into kinetic energy
Solutions among the following mixtures. (b) Sea water (c) Air (e) Soda water.
Because resultant molecules do not collide in proper orientation.
(a)Concave mirror (b) Convex lens (c) Concave lens (d) Convex mirror
(c) Nuclear- energy
Renewable sources: wind, tides, Sun, biomass, hydro energy Non-renewable sources: coal, petrol, CNG
Sun and biogas.
(a) primary consumer to secondary consumer. (b) producer to primary consumer. (c) secondary consumer to tertiary consumer.
The difference in temperature of water at the surface of ocean and at deeper levels (at depths up to 2 km) should be 20°C or more.
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