32. What do you call a device that transforms mechanical energy into electrical energy?A. electric chargeB. electric motorC. electric generatorD. electric current33. Which of the following uses concave lens?A. Magnifying glasses B. Dentist's mouth mirror C. TelescopesD. Car's headlight34. A car's headlight usesA Plane mirrorB. Convex mirrorC. Concave mirrorD. None of the above35. The sun's rays are observed to focus at a point behind a lens. What kind of lens was used?A converging lens B. diverging lensC. focusing lensD. none of the above36. The image in a convex mirror is alwaysA real, erect and diminishedB. real, erect and magnifiedC. virtual, erect and diminishedD. virtual, inverted and diminished37. A typical mirror you look in at a home or in a restroom is aA. concaveB. convexC. parabolicmirror.D. plane38. The image you see on a plane mirror is placed inA. fiveB. multiple directionsdirection(s) of real image.D. the sameC. the opposite39. What type of lens is use to correct nearsightedness?A. concaveB. convexC. parabolicD. plane40. A typical mirror you look in at a home or in a restroom is aA. concaveB convexC. parabolicmirrorD. planeimage because it is not a real, physical41. The image you see in a plane mirror is called aobjectA imaginaryB. physicalC. reflectedD virtual
1. 32. What do you call a device that transforms mechanical energy into electrical energy?A. electric chargeB. electric motorC. electric generatorD. electric current33. Which of the following uses concave lens?A. Magnifying glasses B. Dentist's mouth mirror C. TelescopesD. Car's headlight34. A car's headlight usesA Plane mirrorB. Convex mirrorC. Concave mirrorD. None of the above35. The sun's rays are observed to focus at a point behind a lens. What kind of lens was used?A converging lens B. diverging lensC. focusing lensD. none of the above36. The image in a convex mirror is alwaysA real, erect and diminishedB. real, erect and magnifiedC. virtual, erect and diminishedD. virtual, inverted and diminished37. A typical mirror you look in at a home or in a restroom is aA. concaveB. convexC. parabolicmirror.D. plane38. The image you see on a plane mirror is placed inA. fiveB. multiple directionsdirection(s) of real image.D. the sameC. the opposite39. What type of lens is use to correct nearsightedness?A. concaveB. convexC. parabolicD. plane40. A typical mirror you look in at a home or in a restroom is aA. concaveB convexC. parabolicmirrorD. planeimage because it is not a real, physical41. The image you see in a plane mirror is called aobjectA imaginaryB. physicalC. reflectedD virtual
Answer:
(a) An electric fan converts electrical energy into mechanical energy .
(b) Cooking gas converts chemical energy into heat energy.
(c) Energy possessed by a compressed spring is potential energy.
(d) The ability to do work is called energy.
(e) The energy possessed by a body due to its position is called potential energy.
(f) The energy possessed by a body due to its movement is called kinetic energy
(g) Green plants convert light energy into chemical energy.
(h) The S.I. The unit of energy is joule.
(i) An object falling freely from the roof of a multistorey building has potential energy and kinetic energy when halfway down a building.
Explanation:
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