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