Karteikarten
Mirrors and Light ✔
Karten in diesem Stapel (15)
- 1What does emit mean?To produce and give off:
-The Sun emits light. - 2Give two examples of sources of light.-The Sun
-Electric light bulbs
-Fires - 3What are objects that emit light called?Luminous objects
- 4Why do we see the Moon?We see the Moon as it reflects light from the Sun, and then enters our eyes.
- 5The Sun gives out ____ of light.ray: a narrow beam of straight light
- 6All light travels in _______ lines.All light travels in [straight] lines.
- 7Why do shadows form?Shadows are formed because light travels in straight lines and cannot travel around or through an object, unless the object is transparent.
- 8What are the factors on which the size of a shadow depends on? (2)-the distance the shadow is away from the light source
-the distance between the shadow and the screen (the surface). - 9______ surfaces are better reflectors than _______ surfaces. [ shiny, dull ][Shiny] surfaces are better reflectors than [dull] surfaces.
- 10What is the best reflector called?a mirror.
- 11Do mirrors absorb or reflect light?Mirrors reflect light.
- 12What are the four features of a mirror image?-the same way up
-the same size
-the same distance behind the mirror that you are in front of
-back to front - 13What are the two types of curved mirrors?Concave and convex.
- 14What is a convex mirror?a mirror that curves outwards, allowing the person to see a wider field of view than a plane mirror
- 15What is a concave mirror?a mirror that curves inwards is called a concave mirror, and is often used to magnify an image.
*concave has the word cave in it- a cave curves inwards therefore a concave mirror must do so too
Informationen
- Beschreibung
- Mirror, mirror on the wall.
- Erstellt von
- Farha Idrees
- Aufrufe
- 31
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