Science Lesson
Asalamualaikum Parents and Students Hope you are all well Keep safe
Attention Students and Parents
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- Students if you missed lessons from WEEK 1 Please scroll right down for those lessons
WEEK 2
30 March - 3 April
Read EVERYTHING first and then follow InSTRUCTIONS
Lesson 1
Read the following
Bernoulli's principle:
Bernoulli’s principle helps explain that an aircraft can achieve lift because of the shape of its wings. They are shaped so that air flows faster over the top of the wing and slower underneath. Fast moving air equals low air pressure while slow moving air equals high air pressure. The high air pressure underneath the wings will therefore push the aircraft up through the lower air pressure.
Demonstrations:
There are a number of useful demonstrations you can do to help explain flight, they include:
1. Using a hairdryer to float polystyrene balls/pieces.
2. Releasing a blown up balloon so that it flies up .
3. Throwing paper airplanes of different designs, which work better and why? Class assignment that was already done in January but you can test out new designs.
Activities: Do ALL 3
1.Your challenge is to hold a rectangular piece of paper close to your mouth, blow across the top of it and get the paper to move down. Sounds simple enough but give it a go and see if you change your mind.
2.Next, try and make a piece of paper into a simple bridge and get the bridge to rise up by blowing under it.
3.Your final challenge is to hold 2 paper strips near your mouth, blow between them and get them to fly apart.
RESULTS - for your results Please fill out the form below
What's happening?
You blew across the paper and it went up rather than down! You blew under the bridge and the bridge went down, rather than up. You blew between the streamers and they moved in, not out.
Your fast moving breath has less push (less air pressure) than the still air below the paper.
The still air with the greater pressure pushes up into the low pressure area. It lifts the paper up with it.
These interesting results are due to the Bernoulli effect, remember it because it plays an important role in our ability to fly.
LESSON 2
For your Reading
Open the following link. read all about What happens to our bodies in a plane. Then fill out the form below with your responses and submit
If you have filled in 2 forms and submitted then your work is complete. thank you
Asalamualaikum Parents and Students
If you missed this lesson
WEEK 1- 23 March=27 March
Activity 1
Open the link here and play the Plane Game ..... https://www.grc.nasa.gov/www/k-12/UEET/StudentSite/games/theplanegame.htm Fill in the form that is below (right at the bottom) with your score/ results and SUBMIT.
Abdul Baith is leading with 2425 points Good job!
WEEK 1 ending 27 March
Lesson 1
Date 25 March
(When doing your work, do not use pages and pages try and fit everything close together)
Read the following
The Four Forces of Flight
The Four Forces of Flight Keep a Plane Aloft
Have you ever thrown a Frisbee®? It flies because of four forces. These same four forces help an airplane fly. The four forces are lift, thrust, drag, and weight. As a Frisbee flies through the air, lift holds it up. You gave the Frisbee thrust with your arm. Drag from the air made the Frisbee slow down. Its weight brings the Frisbee back to Earth again.
You see them everyday: airplanes, jets, and helicopters, soaring, zooming, and even roaring through the skies. We may take flight for granted; yet, knowing the science behind it gives us a better understanding of the marvels of air travel.
Wings keep an airplane up in the air, but the four forces are what make this happen. They push a plane up, down, forward, or slow it down.
Thrust is a force that moves an aircraft in the direction of the motion. It is created with a propeller, jet engine, or rocket. Air is pulled in and then pushed out in an opposite direction. One example is a household fan.
Drag is the force that acts opposite to the direction of motion. It tends to slow an object. Drag is caused by friction and differences in air pressure. An example is putting your hand out of a moving car window and feeling it pull back.
Weight is the force caused by gravity.Lift is the force that holds an airplane in the air. The wings create most of the lift used by airplanes.
Your Work
Sketch a plane showing the 4 forces of flight and provide explanations
Lesson 2
The Balloon Racer EVERY student is working on their own
How is your balloon racer coming up. Suggestion : Copy and paste this link in your browser and follow the instructions onhow to build a balloon racer.
https://images.app.goo.gl/AZLiPpiyuxo9wNkx8
Your work
Make the Balloon Racer and test the distance it goes. Send me your results in the form blow, pictures and videos by email, if you can
If you'd like me to post your pics or videos here please let me know
Fill out the form below with your results and SUBMIT. Thank you!