Science Infoblog

What a talented bunch of individuals the seventh form of 08 turned out to be………good luck…..there is life after school.

Click on comments at the bottom of this post and answer the questions. The best 5 answers will each receive a mars bar.

First of all watch this clip of a Boeing 767 take off.

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A Boeing 767 is travelling at 80 meters per second when it takes off.

(1) What is the speed of the aircraft in kilometers per hour

(2) How long does it take for the aircraft to reach its take off speed from the start (when it is stationary).Time to the point the aircraft just begins to lift off the runway

(3) Use this time to calculate the acceleration of the aircraft as it moves down the runway.

The equation you need is a = (change in speed)/change in time

(4) Calculate the total thrust needed to produce this acceleration by using the equation:

F=ma

The aircraft weighs approximately 200,000Kg when it is fully laden. Remember to use the correct units in your answer.

(5) The shape of the aircraft wing changes as it approaches cloud level. Why is the wing designed to behave in this way.

(6) What airport do you think the aircraft is taking off from, why?

Finally click on the blue comments button below this post to leave your your answers. You will be asked for an email address and there may be a delay in your comment appearing on the blog.

Good luck!

Congratulations to all students who achieved success in the 2007 NCEA exams.

Parental support in buying workbooks to assist student learning would be appreciated and the link for 2008 requirements can be found at the top of the page.

Communication with students and parents will be a lot easier this year after work developing science blogs in the latter part of 2007.

Links to the senior Biology , Physics and Chemistry blogs can be found on the sidebar under “Senior Sciences”. Information on the Level 1 NCEA Science course can be found on its own page

Watch this space for outstanding examples of student work and general news and information.

Good luck with your studies

Year 12 students as part of their redox chemistry had to do the following.

• choose a redox reaction
• decide how they were going to demonstrate this reaction to the class
• Prepare a short video clip about 1 minute in length to explain the redox chemistry involved.
• Use Windows Movie Maker or other editing tool to add captions containing the ion electron equations.

The winning team were Nerdzherd .

And here is their award winning presentation.