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Syllabus |
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OP15 |
Define and give the units for work, energy and power |
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State the relationship between work and power, and perform simple calculations based on this relationship |
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OP 4 |
Understand the concept of force | |||
| Who knew concussion was an example of Newton's first law of motion | YouTube. 4 mins | |||
| Explain it to me: Concussions | link | YouTube. 3 mins | ||
| Recall that the newton is the unit of force | ||||
| Describe forces and their effects | ||||
OP 5 |
Friction |
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| Microscopic simulation | Friction between two rough surfaces, from absorblearning.com | 4 Star |
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| And from a smooth surface | 3 Star | |||
| The effect of ball-bearings in reducing friction | 4 Star | |||
| The effect of lubrication in reducing friction | 4 Star | |||
| Rub the two books against each other and note the temperature | 3 Star |
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| Nice counter-intuitive demonstration | Interweave the pages from two books and then try to pull them apart. Youtube. 2 mins | 4 Star |
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| How about using military tanks to pull them apart? Mythbusters on YouTube. 6 mins | 4 Star | |||
| Can this friction force lift a car? Vsauce find out on YouTube. 6 mins | 4 Star | |||
| Interactive simulation | Set the coefficient of friction and then give the book a shove | 3 Star |
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| You do know what happens when friction disappears | Car pile-up caused by ice. Youtube. 5 mins. | 3 Star | ||
| Did you know that the primary function of saliva is to act as a lubricant? Take the cream-cracker challenge to find out more. | 7 minutes from YouTube, but more fun to try it in class yourself. | 4 Star |
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| Forces always act in pairs, and if one object pushes or pulls on another object, the force on both will be the same. | This actually seems very strange - watch this YouTube clip and follow the instructions in relation to predicting in advance. 1 min. | 5 Star | ||
OP 6 |
Investigate the relationship between the extension of a spring and the applied force |
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| Excellent overview on why we have graphs | Includes advice on drawing best-fit lines. Powerpoint | 4 Star | ||
| Demonstrating the mandatory expt | YouTube 3 mins | 3 Star | ||
| An interactive Force-Extension graph for a piece of elastic | From absorblearning.com | 4 Star |
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| Simulation of the experiment. | Attach different weights and measure the extension. From Phet.com | 5 Star |
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| Simpler simulation, but less realistic | From absorblearning.com | 4 Star |
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OP 7 |
Weight is the force of gravity and weight varies with location | |||
| World's Roundest Object! Redefining The Kilogram | YouTube. 12 mins. Brilliant, but a bit advance for first years. | 5 Star | ||
| Did you know that weight varies even around the Earth? | To raise awareness, a Bavarian scale manufacturing company, is sending an acrylic garden gnome named Kern around the world, accompanied by a set of scales. From New Scientist |
4 Star |
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| Weightlessness and space | Short video - Register or test-drive | 5 Star | ||
| Why are astronauts weightless? | Short answer - they're not. YouTube 4 mins | 4 Star | ||
| Why doesn't the space shuttle fall to Earth? | Cool explanation. youtube. one minute | 5 Star | ||
| Another viewpoint | This time from an astronomer. Youtube. Two minutes | 4 Star | ||
| What's it like to experience weightlessness? | An astronaut gives his experience. Youtube. 3 minutes | 4 Star | ||
| How do they go the toilet? | You know you want to know. Youtube. 2 minutes | 4 Star | ||
| Why zero-gravity bowling will never catch on | link | Cartoon | 3 Star | |
| What happens when you wring a washcloth in space? | Youtube. 3 minutes | 5 Star | ||
| Accelertion due to gravity | ||||
| Which falls faster - a cannon-ball or a
feather? What about if you try it in a vacuum? |
Place a vacuum jar over Galileo as he drops a canon-ball and feather from the leaning tower of Pisa | 5 Star | ||
| Brianiac try it as only they can | link | Youtube. 3 minutes | 4 Star | |
| feather and hammer drop on the moon | Youtube. 2 minutes. Poor quality | 3 Star | ||
OP 8 |
Mass in kilograms multiplied by 10 is approximately equal to weight in newtons on the surface of the earth |
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| When is a kilogram not a kilogram? | Link | Blogpost from thinkforyourself.ie | ||
| Famous documentary about Isaac Newton - he wasn't as wonderful a character as textbooks often make him out to be | Link | YouTube. 52 mins. Newton's Dark Secrets | 5 Star | |