1. Video

From Mechanics

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|valign="top"| Exploring the effects of gravity on objects can help create a definition of a force.
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|valign="top"| f you are unable to do the drum experiment for yourself, try watching in on the link below.
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http://www.youtube.com/watch?v=O5vvSJjqTOU
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| '''The Rolling Cans'''
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|valign="top"| A force is something that causes a change to the motion of a body.
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|valign="top"| An interesting experiment involves the comparison of the motion of two tin cans when they roll and slide. This is an experiment that you could carry out yourself, of you could watch at the link below.
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http://www.youtube.com/watch?v=Vx6he1pDtes
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| '''Brainiac Eggsperiment'''
| '''Brainiac Eggsperiment'''
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|valign="top"| In the first car the resultant force is in the direction of motion and the car gains speed.
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|valign="top"| This is a great experiment that demonstrates Newton’s First law of motion. Watch and enjoy at the link below.
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In the second case the resultant force is zero and the car travels at a constant speed.
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In the third case the resultant force is backwards and the car slows down.
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http://www.youtube.com/watch?v=HGuIFPxuwrU
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Revision as of 16:58, 9 April 2011

       Introduction          Video      


The Bike Question
Image:Bike.JPG If you are unable to do the bike experiment for yourself, try watching in on the link below.

http://www.youtube.com/watch?v=DGTe5T4LIZY

The Drum Question
Image:fig drum2.jpg f you are unable to do the drum experiment for yourself, try watching in on the link below.

http://www.youtube.com/watch?v=O5vvSJjqTOU

The Rolling Cans
Image:cans1.jpg An interesting experiment involves the comparison of the motion of two tin cans when they roll and slide. This is an experiment that you could carry out yourself, of you could watch at the link below.

http://www.youtube.com/watch?v=Vx6he1pDtes

Brainiac Eggsperiment
Image:brainiac.jpg This is a great experiment that demonstrates Newton’s First law of motion. Watch and enjoy at the link below.

http://www.youtube.com/watch?v=HGuIFPxuwrU

Image:fig i.GIF In the first case the resultant force is upwards. As the parachutist is also moving downwards, he slows down.

In the second case the resultant force is zero and the parachutist moves with a constant speed.

Image:fig k.GIF The resultant force is always downwards.

If the resultant force were zero at the highest point, the ball would stay there!!

Image:fig m.GIF No, the motion is changing from downwards to upwards.

The resultant force is upwards, for almost all of the time that the ball is in contact with the table.

Image:fig n.GIF The direction of the motion is always changing, so the forces are not in equilibrium.
Image:fig p.GIF
Image:fig q.GIF Image:fig r.GIF
Image:fig s.GIF Image:fig t.GIF
Image:fig u.GIF Image:fig v.GIF
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