teach-pt

Real-life Applications

Page history last edited by Ziad 2 wks ago

Real Life Applications To Explain The Doppler Effect

Have you ever noticed how when an ambulance gets nearer to you it sounds louder and when it passes you it gets fainter and fainter? What if you knew that it did not get louder or quieter but that something else was changing. What you felt was not the loudness of the siren change but the change in pitch. The change in pitch results from the Doppler effect which basically changes the frequency of the sound waves as the sound waves get closer and closer in proximity when the ambulance gets near you but spread apart when the ambulance passes you. It isn't the loudness of the sound that changes but its pitch(frequency).

Real Life Acceleration

I use a motion detector lab (by Vernier) to show acceleration. The program has a set line that students try to duplicate using the motion detector. Time is on the x-axis and velocity is on the y-axis. At first the students confuse acceleration with velocity and stop when the line flattens out. They eventually realize that at the lines with a zero slope, they have to keep a constant acceleration, not stop. By the end of this activity, they realize that you can go 55 mph for an hour and not accelerate during that hour.

Velocity using remote control cars

CaruthersTwikireallifeappl.doc

I like to remind the students that air creates pressure on us by reminding them of times they traveled away from sea level or road on an airplane. I ask them if they remembered their ears popping. Usually all the students can relate to this experience. I then remind them that the air pressure inside their heads will adjust by either letting air inside or outside through their eardrums. This is the popping they experience. This discussion will also lead us into water pressure. dolezelSwikireal-lifeappl.doc

Real-Life Applications

Bernoulli and the Navy

Martha Burnett Real Life Application of GPS.doc

Jello Optics

Impulse - Momentum

Torque - Single Speed Bicycle

real life inertia.doc

Momentum-

Since most secondary students learn best when you relate their lesson to something they love, I like to talk about cars. I get the point across for momentum comparing a little red corvette to a 50 car train. If they are both going the same speed, say 50mph, why is it harder for the train to stop? This really drives home that mass factors in when you discuss momentum.

Constructive & Destructive Interference

Momentum

Momentum at Bowling Alley

Optics

Polarizatio of Light - Stress Analysis

Refraction of Light Real Life Application

Optics - Introduction idea

burlisonLwikireallifeapplication.doc Bat Design