32. What do you call a device that transforms mechanical energy into electrical energy?
A. electric charge
B. electric motor
C. electric generator
D. electric current
33. Which of the following uses concave lens?
A. Magnifying glasses B. Dentist's mouth mirror C. Telescopes
D. Car's headlight
34. A car's headlight uses
A Plane mirror
B. Convex mirror
C. Concave mirror
D. None of the above
35. 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 lens
C. focusing lens
D. none of the above
36. The image in a convex mirror is always
A real, erect and diminished
B. real, erect and magnified
C. virtual, erect and diminished
D. virtual, inverted and diminished
37. A typical mirror you look in at a home or in a restroom is a
A. concave
B. convex
C. parabolic
mirror.
D. plane
38. The image you see on a plane mirror is placed in
A. five
B. multiple directions
direction(s) of real image.
D. the same
C. the opposite
39. What type of lens is use to correct nearsightedness?
A. concave
B. convex
C. parabolic
D. plane
40. A typical mirror you look in at a home or in a restroom is a
A. concave
B convex
C. parabolic
mirror
D. plane
image because it is not a real, physical
41. The image you see in a plane mirror is called a
object
A imaginary
B. physical
C. reflected
D virtual

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Almaaboggo Almaaboggo · Answer 1

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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