1) What do waves carry from place to place a) energy, but not matter b) matter, but not energy c) both energy and matter d) neither energy nor matter 2) How do we hear sounds? a) wind carries sound to us b) sound waves make our ear drums vibrate c) light waves signal our brains to hear sound waves d) air carries sound waves 3) What type of waves can travel through empty space? a) mechanical waves b) sound waves c) water waves d) electromagnetic waves 4) Waves that need a medium to travel through are called? a) medium waves b) sound waves c) Longitudinal waves d) electromagnetic waves 5) What is the highest point of a wave a) crest b) trough c) amplitude d) frequency 6) What is the lowest point of a wave? a) crest b) trough c) amplitude d) frequency 7) What is the distance between the centre of a wave and its crest? a) crest b) trough c) amplitude d) frequency 8) Which of these are not electromagnetic waves a) micro waves b) sound waves c) radio waves d) x-rays 9) Where do ultraviolet waves come from? a) the moon b) the earth c) the atmosphere d) the sun 10) Reflection is... a) bouncing back and forth of light rays b) only possible with a mirror c) when light travels from our eyes to the mirror d) happening all around us with light from the lamps in the room 11) Refraction is... a) when a wave changes velocity in a medium of different density b) the opposite of reflection c) when a wave changes direction d) only possible when water waves pass from a deep zone over a shallow zone

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