Lighting and Sign
Y11-PHY-2013-T2 Holiday homework
Investigation 4 （3%）
An LED sign is an illuminated sign made with LED, or light-emitting diode, light bulbs which produce little heat and are energy efficient. An LED sign is used in a shop window to attract the attention of potential customers, or as part of a decoration. For this holiday homework, you should complete the following requirements:
1. LED Sign：
Everyone should make an LED sign. A simple one containing a single series circuit is OK. You need to determine the materials to make the sign from and prepare them by yourselves. You can design your own symbol used in different ways.
2. A report：
Make a report to introduce the LED sign you make. The planning and report worksheet is attached, use it to finish you report. If you need to quote information from internet or other books, you must give the source of the information at the end of the report. And the original text from the reference can’t be more than 40%.
3. This task will take about 3% of your score for the 2A2B part (essay: 1%; LED sign: 2%).
4. You can hand in your report in either printed version or handwriting version.
5. Deadline: Tuesday, June 18th. If submitted later, the essay or LED sign will get only 70% of the original score.
Planning and Report Worksheet for Science Investigations
Student name _____________________________
Phase one: Planning
What sign are you going to make? It will be used in which way? Use a using a diagram to describe your sign.
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
_____________________________________________________________________
What do you know about LED from personal experience and from science?
Investigation 4 （3%）
An LED sign is an illuminated sign made with LED, or light-emitting diode, light bulbs which produce little heat and are energy efficient. An LED sign is used in a shop window to attract the attention of potential customers, or as part of a decoration. For this holiday homework, you should complete the following requirements:
1. LED Sign：
Everyone should make an LED sign. A simple one containing a single series circuit is OK. You need to determine the materials to make the sign from and prepare them by yourselves. You can design your own symbol used in different ways.
2. A report：
Make a report to introduce the LED sign you make. The planning and report worksheet is attached, use it to finish you report. If you need to quote information from internet or other books, you must give the source of the information at the end of the report. And the original text from the reference can’t be more than 40%.
3. This task will take about 3% of your score for the 2A2B part (essay: 1%; LED sign: 2%).
4. You can hand in your report in either printed version or handwriting version.
5. Deadline: Tuesday, June 18th. If submitted later, the essay or LED sign will get only 70% of the original score.
Planning and Report Worksheet for Science Investigations
Student name _____________________________
Phase one: Planning
What sign are you going to make? It will be used in which way? Use a using a diagram to describe your sign.
______________________________________________________________________
______________________________________________________________________
______________________________________________________________________
_____________________________________________________________________
What do you know about LED from personal experience and from science?