S3 Physics Presentation on X-Rays

Posted by Mr Mallon on February 25, 2012

Here is my S3`s first Google Docs collaborative presentation on the topic of X-Rays.

21st Century pupils can now carry out research at home while sharing their findings with other fellow students.
This is a powerful way to study and learn.

Well done S3 physicists!

Power of Google Docs

Categories: Standard Grade
25Feb
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Gravitational Field Strength! (Int2 and SG fourth year)

Posted by Mr Mallon on February 18, 2012

Hi physics lovers!

The gravitational field strength tells us how much force a planet exerts on each kilogram of mass.

Read the cartoon and see if you can find a link between the mass of an object, its weight and gravitational field strength of the planet.

Gravity

18Feb
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Nasty Nine February Holiday Task

Posted by Mr Mallon on February 10, 2012

Hi Physics lovers. Here is your Nasty Nine Homework task for the February break.
Write the answers down and then submit them in the Google form where you will find the link in Edmodo.

Categories: Standard Grade
10Feb
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Nasty Nine Science Test

Posted by Mr Mallon on January 30, 2012

Categories: Science Classes
30Jan
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Periodic Table Flash Cards

Posted by Mr Mallon on January 22, 2012

Can you remember some famous chemical symbols from the element`s name.
On you go give it a try.

Categories: Science Classes
22Jan
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Higher Physics Nasty Nine #2

Posted by Mr Mallon on January 22, 2012

Hi physics lovers here is your second Nasty Nine Higher physics quick test.
Answers will be published next week.

Categories: Higher Physics
22Jan
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Capacitors

Posted by Mr Mallon on January 21, 2012

Following our bin bag capacitor experiment fun yesterday here is a video on the little characters themselves:

Here is a sketch of our bin bag capacitor we made yesterday.

Essentially a capacitor consists of two metal plates separated by an insulator, in this case a plastic bin bag.

Categories: Higher Physics
21Jan
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Night Sky Pictures

Posted by Mr Mallon on January 15, 2012

Categories: Physics News
15Jan
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Wheatstone Bridge Investigation fun!

Posted by Mr Mallon on January 9, 2012

Hi physics lovers! Try out this Wheatstone Bridge investigation.

Click here to get PhET virtual circuit builder.

Click RUN NOW or if it is your own computer click DOWNLOAD

Download this worksheet to build and investigate the Wheatstone Bridge:
Wheat Stone Bridge Activity

Categories: Higher Physics
9Jan
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January Sunshine.

Posted by Mr Mallon on January 6, 2012

Image of Sun through a pin hole

After the stormy weather of the Christmas period it was great to see the Sun shining brightly yesterday.

Actually, even though it is just past midwinter, the Sun was at its closet to the planet yesterday.
Astronomically we say the Earth was at perihelion

The fact that we are in winter is to do with the tilt of our planet which is tilted away from the Sun at the moment and nothing to do with distance from the Sun.

Anyway I wanted to capture the image of the Sun yesterday using a small compact mirror and piece of cardboard.

It is quite simple. Just make a hole in the cardboard with a pencil, just about the width of the pencil.

Sellotape the mirror onto the card over the hole.
Now carefully point the cardboard with the mirror towards the sun aiming the reflected image onto a wall a few metres away and there you have it! An image of the Sun`s disk.

WARNING! NEVER LOOK DIRECTLY AT THE SUN

It is possible to see sunspots on the image if you project it into a dark box a few metres away.

The diagram below shows how to set up your pin hole arrangement.
The mirror is placed over the hole and by moving the cardboard the image of the Sun can be moved onto a wall a few metres away.
Click the diagram below to see it larger.

How to image the Sun

I projected the image of the Sun onto my shed wall.
The mirror has the effect of increasing the distance from the pinhole ( actually the hole in the cardboard ) to the wall thus making the image larger.

Try this solar project out and see if you can capture the image of the Sun.

But I do have to emphasize: DO NOT LOOK AT THE SUN

Categories: Physics News
6Jan
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