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