1) A group of transverse waves that all travel at the same speed in a vacuum. a) Sound Waves b) Seismic Waves c) Cosmic Waves d) Electromagnetic Waves 2) The number of waves passing a point in one second. a) Amplitude b) Wavelength c) Frequency d) Time Period 3) Reflection from a rough surface, where the reflected light is scattered in all directions. a) Diffuse Reflection b) Specular Reflection c) Total Internal Reflection d) Freflection 4) Something that only transmits certain colours and absorbs the rest. a) Prism b) Filter c) Mirror d) Grating 5) Giving off light. a) Luminous b) Refractive c) Dispersive d) Transparent 6) When light is reflected evenly, so that all reflected light goes off in the same direction. a) Specular Reflection b) Fair Reflection c) Parallel Reflection d) Homogenous Reflection 7) Electromagnetic waves that can be detected by the human eye. a) Ocular Light b) Infra-red c) Visual Light d) Visible Light 8) The seven colours that make up white light. ROYGBIV a) Electromagnetic Spectrum b) Rainbow Spectrum c) Visible Spectrum d) Heptagonal Spectrum 9) Normal daylight, or the light from light bulbs consisting of all of the visible spectrum. a) White Light b) Optical Light c) Coherent Light d) Polarised Light 10) Electromagnetic radiation with a longer wavelength than infrared radiation but a shorter wavelength than radio waves. a) Visible Light b) Microwaves c) X-Rays d) Ultra Violet 11) Electromagnetic radiation with the longest wavelengths and lowest frequencies. a) Microwaves b) Longitudinal Waves c) Radio Waves d) Gamma Rays 12) Electromagnetic radiation used in medical scans. a) Ultra Violet b) Infra-red c) Microwaves d) X-Rays 13) Electromagnetic radiation used motion sesnors. a) Ultra Violet b) Infra-red c) Microwaves d) Visible Light 14) Electromagnetic radiation used to detect forged bank notes. a) Ultra Violet b) Infra-red c) Microwaves d) Visible Light 15) Movements up and down. In radio aerials, they are repeated changes in voltage and current. a) Undulations b) Oscillations c) Perturbations d) Alternations 16) Absorbing radiation of one wavelength and re-emitting the energy at a different wavelength. a) Effervescence b) Ionisation c) Fluorescence d) Liberation 17) Cancer treatment in which a patient is given gamma radiation to kill the cancer cells. a) Chemotherapy b) Gamma Therapy c) Radiotherapy d) Ion Therapy 18) A change in the DNA instructions in a cell. a) Mutation b) Repulsion c) Transformation d) Cancer

KWMC EM Spectrum

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