Introduction to Light

Light introduction Carefully watch the video so you can answer the questions below! Light is a form of energy made from photons. These are the smallest unit of visible light. Light behaves both like a particle and a wave. When light hits an object and passes through it, that object is transparent. One example of this type of object is water. If light bounces off of an object is it opaque. One example of this is wood. In a vacuum, light travels at a speed of .1 million miles per second! It only takes 8 minutesfor light to get from the sun to earth.Light travels through different mediums (types of matter). Sometimes the light waves bend. This bending of light is called refraction. How do we see a pencil? True or false: Light is both a wave and a particle True False Which of these is a light source that reflects the sun's light? The sun A lamp The moon A candle Which of these parts of the electromagnetic spectrum can we see with just our eyes? microwave gamma rays x-rays radio waves visible light infrared