A) sound B) energy C) water D) inertia
A) true B) false
A) reflected B) absorbed C) refracted D) all of these
A) diverging B) converging
A) transferred B) refracted C) reflected D) absorbed
A) a lens that is thinner in the center and thicker at the edges and bends light outward B) the bending of light waves as they travel from one surface to another C) a form of energy that can travel in waves and can move through empty space D) a lens that is thicker in the center and thinner at the edges and bends light inward
A) a form of energy that can travel in waves and can move through empty space B) the bending of light waves as they travel from one surface to another C) a lens that is thicker in the center and thinner at the edges and bends light inward D) a lens that is thinner in the center and thicker at the edges and bends light outward
A) true B) false
A) a rainbow B) singing in the rain C) a solar eclipse D) white light
A) indigo B) orange C) brown D) green
A) it reflects every colour of light except green B) it is recyclable C) it reflects blue and yellow D) it absorbs every colour of light except green
A) violet B) green C) yellow D) blue E) red
A) are always opaque B) produce curved reflections, like funhouse mirrors C) scatter light rays that hit them D) reflect light waves in a single direction
A) opaque B) concave C) convex D) asymmetrical
A) changes from one wavelength to another B) changes from one colour to another C) becomes absorbed D) moves from one medium to another
A) it reflects B) it's transparent C) it's blue D) it's translucent
A) opaque B) transparent C) translucent D) convex
A) transparent B) absorb C) translucent D) opaque
A) refract B) reflect C) absorb D) transmit
A) They are made of cotton B) They are blue and refect white C) They absorb all colours D) They reflect all colours
A) They switch to white light B) They slow down C) They change speed, direction, and bend D) They spread out and bend
A) is half the size of the angle of reflection B) is always equal to the angle of reflection C) is double the size of the angle of reflection D) doesn't matter
A) the reflected surface is mercury B) the parallel incident light rays are reflected in parallel C) light reflected by a sheet of paper D) the image is identical to the reflected object and reversed
A) they are electromagnetic B) travel in straight lines C) they are transverse D) they are longitudinal
A) diverging B) focal point C) convex D) concave
A) true B) false
A) always B) never C) when the object is in between the focal point and the lens D) when the object is more than twice the distance of the focal point away from the lens
A) can create a virtual or real image B) always creates an inverted image C) always creates a virtual image D) always creates a real image
A) nearsightedness B) farsightedness C) blind D) 20/20 vision
A) presbyopia B) hyperopia C) myopia D) youropia
A) light waves are reflected straight up B) light waves are reflected in all directions C) light waves are not reflected D) light waves are reflected in one direction
A) No B) Yes
A) real point where the refracted rays actually meet B) virtual point from which the refracted rays seem to come from
A) real and smaller than the original object B) virtual and smaller than the original object C) virtual and larger than the original object D) real and larger than the original object
A) reflects straight back to the object B) refracts outwards as if originating from the lens' focal point C) refracts inwards and through the lens' focal point D) goes straight through, continuing parallel |