1) The electromagnetic spectrum has properties of a) particles and waves b) waves c) particles 2) All electromagnetic waves do NOT travel at the same speed a) true b) false 3) How fast does an electromagnetic wave move? a) speed of sound b) speed of radiation c) speed of waves d) speed of light 4) Electromagnetic waves can travel through a vacuum? a) true b) false c) I dont think so 5) Visible Light is NOT apart of the electromagnetic spectrum a) I think so b) false c) true 6) What wave has the highest frequency on the electromagnetic spectrum? a) radio waves b) x-rays c) UV d) gamma rays e) x-rays 7) Refraction is when light bends a) true b) false c) miss did not say that 8) What type of lens makes the light rays scatter? a) converging b) convex c) concave d) flat lens 9) The distance between the focal point and the centre of the lens called a) object length b) axis length c) focal length d) image length 10) A converging lens forms a .... a) real image b) small image c) upside down d) all are correct 11) With a converging lens, a real image forms... a) in front of the lens b) on the opposite side of the lens. c) inside the lens 12) The image formed if the object inside the focal length is. a) a virtual image b) a real image c) my image 13) Which type of lens causes light rays to diverge? a) convex lens b) concave lens 14) A magnifying glass is a a) concave lens b) convex lens c) diverging lens

Y10-Em-lenses

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