Difference between revisions of "Photoelectric Effect"
(Created page with "==Key Stage 3== ===Meaning=== A '''photoelectric effect''' is when light causes an electrical current. ===About the Photoelectric Effect=== : Lig...") |
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===About the Photoelectric Effect=== | ===About the Photoelectric Effect=== | ||
| − | : [[Light]] [[Energy Transfer|transfers energy]] which can be [[Absorb ( | + | : [[Light]] [[Energy Transfer|transfers energy]] which can be [[Absorb (physics)|absorbed]] by a [[material]] causing [[electron]]s to gain [[energy]] and move. |
: The '''photoelectric effect''' is used in [[Digital Camera|digital cameras]] to make a picture. The [[light]] is [[focus|focused]] through a [[lens]] onto a detector which generates an [[Electrical Current|electrical current]] depending on the [[Intensity|intensity]] of [[light]]. | : The '''photoelectric effect''' is used in [[Digital Camera|digital cameras]] to make a picture. The [[light]] is [[focus|focused]] through a [[lens]] onto a detector which generates an [[Electrical Current|electrical current]] depending on the [[Intensity|intensity]] of [[light]]. | ||
Revision as of 09:02, 23 October 2018
Key Stage 3
Meaning
A photoelectric effect is when light causes an electrical current.
About the Photoelectric Effect
- Light transfers energy which can be absorbed by a material causing electrons to gain energy and move.
- The photoelectric effect is used in digital cameras to make a picture. The light is focused through a lens onto a detector which generates an electrical current depending on the intensity of light.