TTEC ONLINE LEARNING 2020 Timaru Technology Educaon Centre Electronics & Control Technology Mr Rainey Week 1 & 2 During the Level 4 lockdown iniated by NZ Government, staff at TTEC are keen for our students to connue with their Technology learning even though they are at home. We hope to provide you with acvies and challenges you can engage with in the comfort of your own home, that will be challenging, smulang and fun. We look forward to teaching you all once again, when this is all over. Take care, be safe, be kind, be tolerant and follow guides set by the Government and all will be well. See you at TTEC soon hopefully. TTEC Staff The Challenge (Design Brief) The Links Resources Apply Ohms Law to calculate unknown values and beer understand component and circuit funcon. This link explains Ohms Law. You can view this before or aſter the task below. I would do it aſter...your choice. hps://mail.google.com/mail/ u/0/?tab=rm&ogbl#inbox/ QgrcJHsbdwdklcffzgxPZkJhFF- CCqDNCPRB?projector=1 Pencil/pen, paper, calculator (you will have one on your phone and computer), computer, internet access and 20—30 minutes concentraon. Unit Overview This is a re-cap for Year 8 students and Year 7 group who aended TTEC for Electronics term 1 and 2019 and an introducon to Electronics for Year 7 students or Year 8 students who have not yet aended Electronics at TTEC. We will be covering the basic components used when we Invesgate Electronics, Invesgate basic circuits, looking at the theory involved, understanding how com- ponents relate to each other, the effect of changes in components and their value on a circuit funcon and some Math to verify funcon. We will be ulising some online soſtware that will enable you to work at your own pace and provide a good visual representaon of circuit funcon. There will also be some YouTube clips to watch which reinforce all the above. Let’s get started with some Math first… behave, it’s only numbers! Ohms Law background and principles (Invesgaon) First of all who was Ohm? - Georg Simon Ohm (16 March 1789 - 6 July 1854) was a German physicist and mathemacian. During part of the me in his life, Ohm worked as a school teacher. Some of his research focused on the new electrochemical cell, invented by Italian scienst Alessandro Volta. Georg Simon Ohm discovered the law, named aſter him, which states that the current flow through a conductor is directly proporonal to the potenal difference ( voltage) and inversely proporonal to the resistance. Well that’s prey straight forward eh? Don’t worry it will all become clear as you work through this. Here is all you need to know to start with. If you know the Amps (I) and the Resistance (R). Mulply I x R to find Voltage (V) If you know the Volts (V) and the Resistance (R). Divide V ÷ R to find the Amps (I) If you know the Volts( V) and the Amps (I). Divide V ÷ I to find the Resistance (R) Prey straighorward now eh...
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Transcript
TTEC ONLINE LEARNING 2020
Timaru Technology Education Centre
Electronics & Control Technology
Mr Rainey Week 1 & 2
During the Level 4 lockdown initiated by NZ Government, staff at TTEC are keen for our students to continue with their
Technology learning even though they are at home.
We hope to provide you with activities and challenges you can engage with in the comfort of your own home, that will be
challenging, stimulating and fun.
We look forward to teaching you all once again, when this is all over.
Take care, be safe, be kind, be tolerant and follow guides set by the Government and all will be well.
See you at TTEC soon hopefully.
TTEC Staff
The Challenge (Design Brief) The Links Resources
Apply Ohms Law to calculate
unknown values and better
understand component and circuit
function.
This link explains Ohms Law. You
can view this before or after the
task below. I would do it
after...your choice.
https://mail.google.com/mail/
u/0/?tab=rm&ogbl#inbox/
QgrcJHsbdwdklcffzgxPZkJhFF-
CCqDNCPRB?projector=1
Pencil/pen, paper, calculator (you will have one on your phone
and computer), computer, internet access and 20—30 minutes
concentration.
Unit Overview
This is a re-cap for Year 8 students and Year 7 group who attended TTEC for Electronics term 1 and 2019 and an introduction to
Electronics for Year 7 students or Year 8 students who have not yet attended Electronics at TTEC. We will be covering the basic
components used when we Investigate Electronics, Investigate basic circuits, looking at the theory involved, understanding how com-
ponents relate to each other, the effect of changes in components and their value on a circuit function and some
Math to verify function.
We will be utilising some online software that will enable you to work at your own pace and provide a good visual representation of
circuit function. There will also be some YouTube clips to watch which reinforce all the above.
Let’s get started with some Math first… behave, it’s only numbers!
Ohms Law background and principles (Investigation)
First of all who was Ohm? - Georg Simon Ohm (16 March 1789 - 6 July 1854) was a German physicist and mathematician. During part
of the time in his life, Ohm worked as a school teacher. Some of his research focused on the new electrochemical cell, invented by
Italian scientist Alessandro Volta. Georg Simon Ohm discovered the law, named after him, which states that the current flow through a
conductor is directly proportional to the potential difference (voltage) and inversely proportional to the resistance.
Well that’s pretty straight forward eh?
Don’t worry it will all become clear as you work through this. Here is all you need to know to start with.
Investigation Changes Stays the same Calculate (Refer To previous Page for Formula). Conclusion?
Voltage (V) Resistance Ohms (Ω) Current Amps (I)
Original value 12 3 ohms (Ω)
Doubled 24 3 ohms (Ω)
Doubled again 48 3 ohms (Ω)
½ Original value 6 3 ohms (Ω)
¼ Original value 3 3 ohms (Ω)
Investigation Changes Stays the same Calculate (Refer To previous Page for Formula). Conclusion?
Current Amps (I) Voltage (V) Resistance Ohms (Ω)
Original value 5 100V
Doubled 10 100V
Doubled again 20 100V
½ Original value 2.5 100V
¼ Original value 1.25 100V
Investigation Changes Stays the same Calculate (Refer To previous Page for Formula). Conclusion?
Resistance Ohms (Ω) Current Amps (I) Voltage (V)
Original value 100 ohms (Ω) 2A
Doubled 200 ohms (Ω) 2A
Doubled again 400 ohms (Ω) 2A
½ Original value 50 ohms (Ω) 2A
¼ Original value 25 ohms (Ω) 2A
A series circuit consists of a single pathway through which electricity can flow. All of the parts of a series circuit—power source, wires, and devices—are connected along the same pathway; the devices are connected one after another, with no branches. Current moves through one device, then the next, and so on.