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