Block pull - Revision history

Ljacques at 15:36, 17 August 2017

2017-08-17T15:36:55Z

Mwong017: /* Images & Movies */

2015-08-28T15:13:05Z

Images & Movies

Mwong017 at 15:13, 22 July 2015

2015-07-22T15:13:09Z

Mwong017: Created page with "NOTOC Back to 1K - Applications of Newton's Law
PIRA index: 1H11.30 ==Description== An angled aluminum cylinder, mounted on a ..."

2015-07-22T15:11:12Z

Created page with "__NOTOC__ Back to 1K - Applications of Newton's Law<br> PIRA index: 1H11.30 ==Description== An angled aluminum cylinder, mounted on a ..."

New page

__NOTOC__
Back to [[1K_-_Applications_of_Newton%27s_Law|1K - Applications of Newton's Law]]<br>
PIRA index: 1H11.30

==Description==
An angled aluminum cylinder, mounted on a friction-less surface, is filled with liquid CO2 from an spray duster can then sealed with a small aperture. The cylinder is heated and as the CO2 evaporates within the cylinder, gas is expelled through the aperture thus propelling the cylinder forward.

==Equipment==
*air track with pump and tubing, power cable
*rocket cylinder with aperture and seal
*spray duster canister
*torch

==Instructions==
Connect the air track to the pump and turn it on. Invert the spray duster canister and shoot the liquid CO2 it into the rocket cylinder for about 3-4 seconds. Seal the rocket with the aperture and ball stopper and place it on the air track. Heat the lower end of the cylinder with the torch until the rocket starts to move along the track.

==Keywords==
rocket, air track, CO2, carbon dioxide, friction-less, torch, evaporation, aperture

==Images & Movies==
<gallery>
File:1H11.30_1.JPG|Figure1
File:1H11.30_2.JPG|Figure2
</gallery>

@@ Line 4: / Line 4: @@
 ==Description==
-Pull a wooden block using a string.
+Pull a wooden block using a string. A minimal force proportional to the static friction coefficient is required to make the block move. This coefficient only depends on the surfaces, not the area of contact or the normal force.
 ==Equipment==
 *block and string
 ==Instructions==
-Pull the block using the string. The block will slide across the table as long as the angle of the string is not too big (less than 90 degrees).
+Pull the block using the string attached the the spring scale. Note the tension at which motion starts and then tension required to maintain motion. Change the orientation of the block, changing the surface area, and repeat. Add masses and repeat; the tension readings should proportional to the masses. Different surfaces can produce different result. Different angle between the surface and the string will produce different result.
 ==Keywords==
-block, string, pull
+block, string, pull, friction
 ==Images & Movies==

← Older revision		Revision as of 15:13, 28 August 2015
Line 19:		Line 19:
	File:1K20.30_1.JPG\|Figure1		File:1K20.30_1.JPG\|Figure1
	</gallery>		</gallery>
		+	{{#widget:YouTube\|width=600\|height=337\|id=htEkjbZuCRg}}

@@ Line 1: / Line 1: @@
 __NOTOC__
 Back to [[1K_-_Applications_of_Newton%27s_Law|1K - Applications of Newton's Law]]<br>
-PIRA index: 1H11.30
+PIRA index: 1K20.30
 ==Description==
-An angled aluminum cylinder, mounted on a friction-less surface, is filled with liquid CO2 from an spray duster can then sealed with a small aperture. The cylinder is heated and as the CO2 evaporates within the cylinder, gas is expelled through the aperture thus propelling the cylinder forward.
+Pull a wooden block using a string.
 ==Equipment==
-*air track with pump and tubing, power cable
+*block and string
 ==Instructions==
-Connect the air track to the pump and turn it on. Invert the spray duster canister and shoot the liquid CO2 it into the rocket cylinder for about 3-4 seconds. Seal the rocket with the aperture and ball stopper and place it on the air track. Heat the lower end of the cylinder with the torch until the rocket starts to move along the track.
+Pull the block using the string. The block will slide across the table as long as the angle of the string is not too big (less than 90 degrees).
 ==Keywords==
-rocket, air track, CO2, carbon dioxide, friction-less, torch, evaporation, aperture
+block, string, pull
 ==Images & Movies==
 <gallery>
-File:1H11.30_1.JPG|Figure1
+File:1K20.30_1.JPG|Figure1
 </gallery>

Block pull - Revision history

Ljacques at 15:36, 17 August 2017

Mwong017: /* Images & Movies */

Mwong017 at 15:13, 22 July 2015

Mwong017: Created page with "__NOTOC__ Back to 1K - Applications of Newton's Law PIRA index: 1H11.30 ==Description== An angled aluminum cylinder, mounted on a ..."

Mwong017: Created page with "NOTOC Back to 1K - Applications of Newton's Law
PIRA index: 1H11.30 ==Description== An angled aluminum cylinder, mounted on a ..."