Photoelectric Effect - Revision history

NRJC: /* About the Photoelectric Effect */

2021-01-23T18:55:15Z

‎About the Photoelectric Effect

NRJC at 18:54, 23 January 2021

2021-01-23T18:54:59Z

NRJC: /* About the Photoelectric Effect */

2019-04-08T09:43:51Z

‎About the Photoelectric Effect

NRJC at 09:02, 23 October 2018

2018-10-23T09:02:10Z

NRJC: Created page with "==Key Stage 3== ===Meaning=== A '''photoelectric effect''' is when light causes an electrical current. ===About the Photoelectric Effect=== : Lig..."

2018-10-23T09:01:55Z

Created page with "==Key Stage 3== ===Meaning=== A '''photoelectric effect''' is when light causes an electrical current. ===About the Photoelectric Effect=== : Lig..."

New page

==Key Stage 3==
===Meaning===
A '''photoelectric effect''' is when [[light]] causes an [[Electrical Current|electrical current]].

===About the Photoelectric Effect===
: [[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]].

@@ Line 22: / Line 22: @@
 : The '''Photoelectric Effect''' is proof of the [[photon]] model of [[light]].
 : The emission of [[photoelectron]]s depends upon the [[frequency]] of [[light]] incident upon a [[metal]]'s surface. Below the [[Threshold Frequency|threshold frequency]] there are no [[photoelectrons]] emitted.
-: Below the [[Threshold Frequency|threshold frequence]] the intensity of the [[light]] has no effect on the emission of [[photoelectron]]s (none are emitted). However, above the [[Threshold Frequency|threshold frequence]] an increase in the intensity of [[light]] will increase the number of [[photoelectron]]s emitted, but will not affect their maximum [[Kinetic Energy|kinetic energy]].
+: Below the [[Threshold Frequency|threshold frequency]] the intensity of the [[light]] has no effect on the emission of [[photoelectron]]s (none are emitted). However, above the [[Threshold Frequency|threshold frequency]] an increase in the intensity of [[light]] will increase the number of [[photoelectron]]s emitted, but will not affect their maximum [[Kinetic Energy|kinetic energy]].

← Older revision		Revision as of 18:54, 23 January 2021
Line 6:		Line 6:
	: [[Light]] [[Energy Transfer\|transfers energy]] which can be [[Absorb (physics)\|absorbed]] by a [[material]] causing [[electron]]s to gain [[energy]] and move.		: [[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 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 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]].
		+
		+	==Key Stage 4==
		+	===Meaning===
		+	A '''photoelectric effect''' is when [[light]] causes an [[Electrical Current\|electrical current]].
		+
		+	===About the Photoelectric Effect===
		+	: [[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 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]].
		+
		+	==Key Stage 5==
		+	===Meaning===
		+	A '''photoelectric effect''' is a phenomenon in which [[electron]]s are emitted form the surface of a [[metal]] when light of a minimum [[Threshold Frequency\|'threshold' frequency]] is incident upon its surface.
		+
		+	===About the Photoelectric Effect===
		+	: The '''Photoelectric Effect''' is proof of the [[photon]] model of [[light]].
		+	: The emission of [[photoelectron]]s depends upon the [[frequency]] of [[light]] incident upon a [[metal]]'s surface. Below the [[Threshold Frequency\|threshold frequency]] there are no [[photoelectrons]] emitted.
		+	: Below the [[Threshold Frequency\|threshold frequence]] the intensity of the [[light]] has no effect on the emission of [[photoelectron]]s (none are emitted). However, above the [[Threshold Frequency\|threshold frequence]] an increase in the intensity of [[light]] will increase the number of [[photoelectron]]s emitted, but will not affect their maximum [[Kinetic Energy\|kinetic energy]].

@@ Line 5: / Line 5: @@
 ===About the Photoelectric Effect===
 : [[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 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]].