Science – Electricity and Electrical Devices Unit – Assignment 1 (25 marks)
Use your creativity to come up with some sort of design for a system that undergoes at least one energy transformation.
Choose from either Option A or Option B:
Your assignment is to build a machine that demonstrates a transformation of energy. You can use arts and crafts materials, elastics, even batteries and wires! All your machine has to do, is… DO something.
Math: (test Thursday)
- Two digit by two digit multiplication ex. 25 x 45 (page 54)
- Multiplying using partial product method
- Multiplying using Lattice Method (worksheet attached)
- Estimating to find the answer, ex. 3.6 x $29.67… 3.5 x 40 = 140 (workbook page Page 53, 79)
- Multiplying whole numbers and decimals by 1000 and 10,000 ex. 1.4 x 1000 (workbook page Page 52, 80, 81, 82, 83, 85)
Science Review: (Test Thursday)
- The air composition
- Who is Leonardo Da Vinci and what is his relation to ornithopters
- Which mammals can sustain leveled flight
- Atmosphere – how many layers? And is it important to know the first, second, and the fourth layer (names and details from the notes)
- Who were the Wright Brothers
- Properties of Air
- What is Air Pressure
- What are the four principles of flight
- Bernoulli’s principle (draw an example – bottle and water flow)
- Should know at least one societal and environmental impacts of flying devices
- The number of countries in Europe
- The different regions
- The transcontinental countries
- Largest/smallest country in Europe
- Number of members in the European Union (the number when they started, and until now)
- European Union’s previous name
- Population – top 5 countries, % of the world‘s population living in Europe
- How much percent does Europe cover of the Earth’s land
- How big Europe compared to other continents (4th, 5th, 6th biggest?)
Language Arts: Practice writing your opinions especially on articles from the newsletter.
- What are the 6 properties of air?
- Air has weight
- Air takes up space
- Air can be compressed
- Air can insulate
- Air can contract when cooled
- Air can expand and create pressure when heated
- Air is tasteless and odourless
2. What is atmosphere?
Atmosphere is the layer of air that surrounds the earth.
3. What is Bernoulli’s principle? Explain it.
Bernoulli’s principle states that as air moves around an object, it creates different pressures on that object. The less pressure, the faster the air. The higher pressure, the slower the air.
4. What are the four principles of flight?
Lift, weight, drag, and thrust.
5. What is lift?
When the air pressure below a wing is greater than the air pressure above the wing, the net upward force is called the lift.
6. What is weight?
The force with which a body is attracted to Earth, equal to the product of the object’s mass and the acceleration of gravity.
7. What is thrust?
Thrust is what moves the aircraft forward and also creates air speed
8. What is drag?
Drag is a force that acts against thrust and slows the airplane down. When the thrust is greater than the drag, the plane moves forward. When weight is greater than lift, the plane descends.
Today, we took notes on Bernoulli’s principle. Here is a video to make it easier to understand:
This principle was introduced by Daniel Bernoulli (born in 1700- died in 1782). He believed that airplanes fly because the pressure above the wing is smaller than the pressure below the wing.
People have always perceived that flight was possible from observing birds, but it took thousands of years to actually achieve and there were so many hurdles along the way. Continue reading