1) Light travels in ______________ a) zig zags b) curvy lines c) straight lines d) dots 2) How fast does Light travel in m/s? a) 3 m/s b) 300,000 m/s c) 3000 m/s d) 300, 000, 000 m/s 3) Light travels faster than sound a) TRUE b) FALSE 4) Light cannot travel through these types of object a) transparent b) opaque c) traslucent 5) An object that allows light to travel through but is not completely clear is called a) transparent b) opaque c) translucent 6) What type of diagram shows how light travels, including what happens when it hits an object? a) Ray diagram b) Wave diagram c) Light diagram d) Sound diagram 7) In a ray diagram, you draw each ray as a ___________ a) wavy line b) zig zag  c) straight line 8) When light reaches a mirror, it _______ off the surface of the mirror a) refracts b) bounces c) reflects d) retracts 9) What is the name of the ray entering the mirror? a) incident ray b) reflected ray c) angle of incidence d) angle of reflection 10) The law of reflection states that the angle of incidence is ____________ the angle of reflection a) bigger than b) smaller than c) equal to 11) What is happening in this image? a) refraction b) mirroring c) reflection d) bending 12) Why does light refract? a) It's size changes b) It's speed changes c) It's shape changes d) It's brightness changes 13) Which organ detects light? a) ears b) nose c) eyes d) tongue 14) Which part of the eye is the light sensitive area that light is focused on? a) retina b) iris c) pupil d) optic nerve 15) Which of the following colours is NOT a primary colour? a) Red b) Green c) Blue d) Pink

Year 8 Light

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