Important vocabulary • Reflection- the bouncing back of light from a surface. • Plane Mirror- a mirror with a flat surface. • Concave Mirror- a mirror that curves inwards in the middle • Convex Mirror- a mirror that curves outwards in the middle
Bouncing light • Even though our bodies do not produce light, why is it that we are still able to see one another? • ANSWER: • Light’s Reflection
Bouncing Light • Light from things like natural sunlight, lamps, flashlights and other sources send out waves of light. • These waves hit and bounce of off other materials, such as you, and are reflected to your eyes. Some of this light though is absorbed by the object.
Bouncing Light • Think about our slinky example; • What happens when the slinky’s energy hits a surface?? • Is the energy of the reflection of the slinky as powerful? Why or why not?
A plane Mirror • There are different types of mirrors. • A plane mirror is a mirror with a flat surface. • Light reflects from a plane mirror in the same pattern and at the same angle at which the light strikes the mirror’s surface
A plane mirror • The light bouncing off of your body is reflected in the mirror and sent back to your eyes. • Because light reflects from the mirror in the same pattern as the light that struck it, you see an image!
A plane Mirror • The image we see is the same size and shape but, the image in the mirror is reversed left to right.
Curved Mirrors • The images you see in a curved mirror is often changed and is usually not the same size as the object. • There are two kinds of curved mirrors; Concave MirrorConvex Mirror
Concave mirror • A concave mirror curves inward at the middle. • When an image is close to the mirror, the image in the mirror appears larger. • Ladies and Mr. Walter, make up mirrors are often concave to help you see closer.
Concave mirror • Concave mirror are also used as reflectors to concentrate light • The reflected light rays come together at one point as seen above.
Concave mirror • What is happening in our solar cooker experiment?
Convex mirror • A convex mirror curves outward at the middle. • A convex mirror produces an image that is smaller than the object. • They also allow you to see much more of an area than other kinds of mirrors.