A) sound B) inertia C) energy D) water
A) false B) true
A) absorbed B) all of these C) refracted D) reflected
A) diverging B) converging
A) absorbed B) transferred C) refracted D) reflected
A) a lens that is thicker in the center and thinner at the edges and bends light inward B) a form of energy that can travel in waves and can move through empty space C) the bending of light waves as they travel from one surface to another D) a lens that is thinner in the center and thicker at the edges and bends light outward
A) a form of energy that can travel in waves and can move through empty space B) a lens that is thicker in the center and thinner at the edges and bends light inward C) the bending of light waves as they travel from one surface to another 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) singing in the rain D) white light
A) brown B) indigo C) orange D) green
A) it reflects blue and yellow B) it reflects every colour of light except green C) it is recyclable D) it absorbs every colour of light except green
A) yellow B) violet C) blue D) green E) red
A) reflect light waves in a single direction B) are always opaque C) scatter light rays that hit them D) produce curved reflections, like funhouse mirrors
A) asymmetrical B) opaque C) concave D) convex
A) changes from one colour to another B) changes from one wavelength to another C) moves from one medium to another D) becomes absorbed
A) it's transparent B) it reflects C) it's blue D) it's translucent
A) opaque B) transparent C) convex D) translucent
A) transparent B) opaque C) absorb D) translucent
A) absorb B) reflect C) refract D) transmit
A) They are blue and refect white B) They reflect all colours C) They are made of cotton D) They absorb all colours
A) They slow down B) They change speed, direction, and bend C) They spread out and bend D) They switch to white light
A) is half the size of the angle of reflection B) is double the size of the angle of reflection C) doesn't matter D) is always equal to the angle of reflection
A) light reflected by a sheet of paper B) the image is identical to the reflected object and reversed C) the reflected surface is mercury D) the parallel incident light rays are reflected in parallel
A) they are electromagnetic B) they are transverse C) travel in straight lines D) they are longitudinal
A) focal point B) convex C) concave D) diverging
A) true B) false
A) when the object is in between the focal point and the lens B) when the object is more than twice the distance of the focal point away from the lens C) always D) never
A) always creates a real image B) always creates an inverted image C) can create a virtual or real image D) always creates a virtual image
A) farsightedness B) 20/20 vision C) blind D) nearsightedness
A) hyperopia B) youropia C) presbyopia D) myopia
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) 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) refracts inwards and through the lens' focal point B) reflects straight back to the object C) goes straight through, continuing parallel D) refracts outwards as if originating from the lens' focal point |