Light & its application by Nor Aisha Mazlan

nor_aisha_mazlan — 2022-07-01 03:05:07 UTC

nor_aisha_mazlan — 2022-07-01 03:05:29 UTC

nor_aisha_mazlan — 2022-07-01 03:06:08 UTC

nor_aisha_mazlan — 2022-07-01 03:06:26 UTC

nor_aisha_mazlan — 2022-07-01 03:06:40 UTC

nor_aisha_mazlan — 2022-07-01 03:06:53 UTC

Does heart rate monitors on fitness trackers accurate ??

2022-07-01 03:14:35 UTC

https://youtu.be/uWnaqsLSl8c

Deon group

2022-07-01 03:14:49 UTC

https://youtu.be/NPaV4KxQbtQ

Video

2022-07-01 03:16:37 UTC

2022-07-01 03:17:08 UTC

nor_aisha_mazlan — 2024-07-02 01:11:34 UTC

Group work: Tasks to be completed

nor_aisha_mazlan — 2024-07-02 01:17:22 UTC

In your group:

1) Read the article & watch the video.

Reflect on how does light play a role in the application / device?

2) How does the invention / device work?

3) In your opinion, suggest how does it benefit or destroy mankind?

Note: Write down your reflections and findings under the tab assigned to your group.

aden,jayden,thassa,thaddeus,jaylan

2024-07-02 03:08:30 UTC

Laser light is shone on the label surface and its reflection is captured by a sensor (laser photo detector) to read a bar code. A laser beam is reflected off a mirror and swept left and right to read a bar code Using laser allows reading of distant and wide bar code labels.

Joel individual work

2024-07-02 03:18:11 UTC

Light Plays a role in an automatic door when light is passed from a sensor on one side of the door's gap to the receiver on the other side. When there is nothing passing through the door , the beam makes one continuous line and when someone walks through the door way , the light beam is cut and light is temporarily undetected by the receiver. In response the doors open again to prevent closing on the person

In my opinion the invention is very useful because we would no longer require to do anything for the door to open just stand Infront of it and it will automatically open but it might be bad for some people in hurry as the door takes time to open and some people in hurry might bump into the door

pranav group

2024-07-02 03:18:32 UTC

Automatic doors as you know allow people to enter and exit without the need to touch the door itself, in these times of increased hygiene since the pandemic a touchless option for entrances can help to stop the spread of germs and think how many people touch a door throughout the day less option for entrances can help to stop the spread of germs and think how many people touch a door throughout the day.

jiaheng , lydia , qisha , sheryl

2024-07-02 03:19:56 UTC

the automatics sink works by near IR light , a certain amount of light and hand placements it needs to be in front of the sensor , the hand distance also needs to be 1-2 inches from the automatic sink. they promote hygiene by reducing the spread of germs.

jeanelle

2024-07-02 03:20:36 UTC

the light plays a big part in tye smoke detectors as it contains infared

light.when there is fire,smoke enters the detector and blocks the beam of light so the photocell can on longer produce an electric current

It helps mankind as it helps make people there homes safer

4 monkeys group:rizq,danial,khai,putra

2024-07-02 03:24:04 UTC

1)the green led flashes hundreds of times every second

2)heart rate monitors is work by the green light that travels through the skin and detects the heartbeat in our vessel from the heart

3)this benefits by keeping us healthy and active.

Rezqi`s group

2024-07-02 03:24:56 UTC

laser weapons uses light particles. The photons pass through a gain medium a material that creates a cascade of additional photons which rapidly increases the number of photons. All these photons are then focused into a narrow beam through a beam director. Some weapons required a cooling system as sometimes the weapon generates significant heat and a cooling mechanisms to maintain performance.

2)lasers travel at the speed of light, providing instant passage of energy to the target as this is crucial to block the signal for missiles or aircraft.

Syakirah

2024-07-02 03:29:14 UTC

smoke alarms have a small amount of radioactive material between two electrically charged plates, which ionizes the air and causes current to flow between the plates. When smoke enters the chamber, it disrupts the flow of ions, thus reducing the flow of current and activating the alarm.