Name
The Photoelectric Effect
Topic
Quantum Physics
Learning time
6 hours
Designed time
6 hours
Size of class
22
Description
Unit given in a 5th classe of Liceo Scientifico
Aims
Understand the photoelectric effect and the Einstein's interpretation
Outcomes
No outcomes are set
Editor
PCrippa
Edit
INTRODUCTION TO THE TOPIC - LEARNING THE LEXIS
70 minutes)
  • Read Watch Listen
    10
    22
    1
    What is the photoelectric effect? Students are given a simple definition of the effect and a short list of physicist who discovered it or made experiments.
  • Practice
    20
    3
    1
    Students practice the specific lexis on quizlet.com
  • Read Watch Listen
    20
    22
    2
    Watching a couple of videos from YouTube (simplified version of the effect). Following a short discussion.
  • Discuss
    20
    40
    1
    What do we expect to happen 
on the basis of Classical Physics? Students are requested to guess and make hypothesis based on their previous knowledge.
Notes:
Resources linked: 0
SIMULATION OF THE LENARD'S EXPERIMENT - EXPERIMENTAL GRAPHS
55 minutes)
  • Read Watch Listen
    15
    22
    1
    The Lenard's experiment. The teacher runs a very nice applet that simulates the experimental apparatus and allows adjusting all the parameters involved in the experiment (from PhET, interactive simulations for physics, University of Colorado).
  • Read Watch Listen
    40
    22
    1
    Experimental graphs and their meaning.
Notes:
Resources linked: 0
QUICK RECAP - THE EINSTEIN'S INTERPRETATION: PHYSICS AND MATHEMATICS
55 minutes)
  • Read Watch Listen
    15
    22
    1
    Quick recap of experimental graphs.
 Students are oral tested by the teacher who asks them the meaning of the graphs treated in the previous lecture
  • Practice
    10
    3
    1
    Students are given a short quiz made with HotPotatoes to test their understanding of the Lenard's experiment (you have to download the attached .htm file and open it with your browser)
  • Read Watch Listen
    30
    22
    1
    The Einstein’s interpretation of the photoelectric effect: physics and mathematics.
Notes:
Resources linked: 0
PROBLEM SOLVING
60 minutes)
  • Collaborate
    60
    3
    1
    Solving problems of increasing difficulty in groups (formative assessment).
Notes:
Resources linked: 0
SURF THE NET AND FIND APPLICATIONS OF THE PHOTOELECTRIC EFFECT IN EVERYDAY LIFE
90 minutes)
  • Investigate
    45
    3
    0
    Students surf the net to find applications of the effect in everyday life and prepare a short presentation.
  • Produce
    45
    3
    0
    Some students present what they found searching on the web to the class (formative assessment).
Notes:
Resources linked: 0
SUMMATIVE ASSESSMENT
30 minutes)
  • Practice
    30
    22
    1
    Students are given a summative test made with quizlet.com
Notes:
After some hours homework (problem solving on photoelectric effect) and after learning the Compton effect, students will be given a summative written assessment on both effects. Stay tuned!...
Resources linked: 0

Learning Experience

One or more graphs might not display correctly, because one or more learning types do not have duration set.
Social learning graph will not display correctly, because no class size is set.
Social learning graph will not display correctly, because one or more learning types do not have group size set.