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Lukas Dreger
Canada
เข้าร่วมเมื่อ 11 มี.ค. 2015
I am a high school Math and Science Teacher with a love for God and his creation. I see the beauty in the logical way that he ordered the universe especially in Physics where Math and Science mingle so well!
3.5 Lenz's Law Generator Effect
This video is meant to help my Physics 30 class better understand Lenz's Law of moving magnets and/or wires near one another. The electric generator effect.
มุมมอง: 35
วีดีโอ
3.4 Conductors in Magnetic Fields Motor Effect
มุมมอง 5514 ชั่วโมงที่ผ่านมา
This video is meant to help my Physics 30 class better understand the idea of conductors in magnetic fields and how they are effected by them. The electric motor effect.
3.3 Moving Charges in Magnetic Fields
มุมมอง 22วันที่ผ่านมา
This video is meant to help my Physics 30 class better understand this content.
3.2 Electromagnetism
มุมมอง 49วันที่ผ่านมา
This video is meant to help my Physics 30 class better understand the concept of electromagnetism and how to use the 1st and 2nd hand rules in order to find the magnet field around straight and coiled wires, or to find the direction of electron flow in the wires given a magnetic field.
3.1 Magnetism
มุมมอง 29วันที่ผ่านมา
This video is meant to help my Physics 30 class better understand Magnets and how to draw the field lines around them.
2.5 Charged Droplets in Electric Fields
มุมมอง 2514 วันที่ผ่านมา
This video is meant to help my Physics 30 class better electrostatics especially with the concept of charged parallel plates (having uniform electric fields) with a voltage difference energy potential and separation distances.
2.4 Parallel Plates
มุมมอง 921 วันที่ผ่านมา
This video is meant to help my Physics 30 class better electrostatics especially with the concept of charged parallel plates (having uniform electric fields) with a voltage difference energy potential and separation distances.
2.3 Electric Fields
มุมมอง 1721 วันที่ผ่านมา
This video is meant to help my Physics 30 class better electrostatics especially with the concept of Electric Fields including a 2D vector example. Error in example 1 at 5:46 should be 1.15x10⁸
2.2 Coulomb's Law
มุมมอง 1521 วันที่ผ่านมา
This video is meant to help my Physics 30 class better electrostatics especially with the concept of Coulomb's law and the force of attraction between opposite charges and repulsion between like charges including a 2D vector example.
2.1 Static Electricity
มุมมอง 3321 วันที่ผ่านมา
This video is meant to help my Physics 30 class better electrostatics especially with the concept of static electricity, that opposite charges attract, like charges repel, and how conduction and induction work.
Ball Drop Physics 20 LAB with google sheet tutorial
มุมมอง 6221 วันที่ผ่านมา
This video is meant to help my Physics 20 class better understand how to use google sheets to graph position, velocity and acceleration time graphs including calculations between the graphs. We solve for gravity using a tennis ball from about 12 feet up.
1.5 Energy and Momentum (Elastic versus inelastic collisions)
มุมมอง 15หลายเดือนก่อน
This video is meant to help my Physics 30 class better understand Elastic and Inelastic collisions and how to use the concept of conservation of energy with the conservation of momentum. When to apply each idea and when not to.
1.4 2D Collisions Momentum
มุมมอง 29หลายเดือนก่อน
This video is meant to help my Physics 30 class better understand 2D Collisions and how to do Vector conservation of momentum questions.
1.3 Conservation of Linear Momentum
มุมมอง 21หลายเดือนก่อน
This video is meant to help my Physics 30 class better understand Conservation of Linear Momentum. Initial momentum must equal final momentum!
1.2 Impulse
มุมมอง 27หลายเดือนก่อน
This video is meant to help my Physics 30 students better understand the basics of impulse with some examples and calculations.
Find the Missing Side (Using Surface Area and Volume)
มุมมอง 2669 หลายเดือนก่อน
Find the Missing Side (Using Surface Area and Volume)
SI and Imperial Measurement Unit Conversion
มุมมอง 3710 หลายเดือนก่อน
SI and Imperial Measurement Unit Conversion
Error in example 1 at 5:46 should be 1.15x10⁸, not 1.54x10⁸ I just read the calculator wrong.
ERROR: In example one I forgot to convert to meters for the wavelength first. The answer should be 6.6 m/s not 660m/s.
ERROR: In the second example I accidentally used the diameter of 100m instead of the radius of 50m.
nice demo fren
The original equation is correct, but in my example questions I accidentally flipped the fraction, it should be: k/m not m/k
Why are you on my recommended videos? Also the measurement at 2 min said 44C°
Not sure why I would be recommended. But I just checked and the thermometer definitely says 23C to start.
I made an error at 9:10 where I factored it into (x-2)(x-2) but the top is unfactorable.
Good 👍
Example 1: I made a calculation error forgetting to square the numbers. I also had a adding for one step then to subtraction. Subtraction was right not adding. Example 2: I flipped final and initial although it doesn't effect the numerical value it will make the answer negative which shows a deacceleration.
I made a mistake and switched sin and cos in my first example! And in the second example I had sin30 instead of sin15! (please look out for the TH-cam card to see the mistake!)
In the second example I made a mistake substracting 75sin40 instead of adding, it should be adding because it is in the same direction as the normal force! (please look out for the TH-cam card to see the mistake!)
16/32 simplifies to 1/2, whoops!
Should be labelled as Sequence not Series I kept saying it wrong in this video.
Thank you
No problem!
pog champ
YO MATH IS SO EASY NOW
I am glad I could help!
Mr. Dregers 2018-19 class wya?
Thank you for the help you are so inspiring
You are welcome! Just curious what do you use my videos for?
Sometime help me understand my math
@@lenaya3123 Glad I could help.
These are the best, most instructional videos ever!
Why thank you, I really appreciate community feedback and dialogue!
very good video of estimating, nice explain
Glad I could help!
Wait one second. Grade 6?!
Yup this year I am doing grade six
in the last question u mistake the -2x^3 for a +2x^3 which changes your final answer to a 8x^3 - 3x when it should be a 4x^3 - 3x
Thanks for catching that I added a card, hopefully other's will see it!
omg this is my teacher
me no get
Mr dregar this seems pretty easy even for me
I'm glad you think so!
Mr.Dreger on the first question the common denominators the blue 5 multiply to 1=1? Isnt the answer 5?
I'm confused
You are totally right, my mistake very late at night haha. Also apparently TH-cam has gotten rid of annotation functionality so the most I can do to correct this is have something appear in the top right corner. Hopefully that helps.
you explain better then my teacher my boy
Thanks! Glad I could help!
I am your second subscriber
this is Omar thanks for the video it was very helpful.
I am glad I could help! If you want a different example done in video form please comment here on in the google classroom and I will try to help you out!