background image

Air track 

 

12

 

 

5.

 

Inclined plane 

 

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Using a lab stand, raised the end equipped with the launcher until the 
track is at an angle 

 from horizontal. 

-

 

Release the glider using the launcher (without a spring). 

-

 

Place the photogates x mm apart and measure the glider's travel time 
between the 2 photogates. 

-

 

Repeat the operation 3 times moving the 2 photogates X mm further 
along the track (keeping the x mm gap between them). 

-

 

This demonstrates that the travel time increases along the track.  
The velocity increases constantly.  
The acceleration is constant. 

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If we calculate the balance of forces at the glider in relation to axis of 
the track, this gives:

 

 

𝑚

𝑐

∗ 𝑎

𝑐

= 𝑚

𝑐

∗ 𝑔 ∗ sin ∝

 

 

Namely: 

 

             

𝑎

𝑐

= 𝑔 ∗ sin ∝

 

 
 
 

 

𝑝⃗

 

𝑅⃗⃗

 

 

Summary of Contents for DM241013

Page 1: ...INSTRUCTIONS FOR USE Air track DM241013 Track accessories DM241014 Air blower DM241016 Electromagnetic launcher...

Page 2: ...inelastic collisions 2x2 g 2 photogate brackets 2 barrier rods for photogates 0 8 g 1 pulley holder with thread for accelerometer 1 elastic launcher 1 brake 1 connection hose 1 spirit level DM241014 A...

Page 3: ...nderneath the track which has small holes all along its length cf diagram opposite Setting up and use 1 Basic setup Take the track out of the cardboard tube Fix the adjustable feet underneath the trac...

Page 4: ...blower power until it moves without any friction Stop the glider and finely adjust the horizontality of the track so that the glider no longer moves Fit the glider brake on the end cover side Fit the...

Page 5: ...ider OPERATION Place the launcher accessory against the launcher compressing the spring Press the button to hold the glider in position When you let go of the button the glider is released and propell...

Page 6: ...ckets Put the photogate barrier rods on the gliders Pass the glider under the photogate to check that it cuts through the beam without touching the sensor If it does not adjust the sensor height Conne...

Page 7: ...launch Place the photogates x mm apart and measure the glider s travel time between the 2 photogates Repeat the operation moving the 2 photogates further along the track keeping the x mm gap between t...

Page 8: ...m apart and measure the glider s travel time between the 2 photogates Repeat the operation 3 times moving the 2 photogates X mm further along the track keeping the x mm gap between them This demonstra...

Page 9: ...efore the impact This gives you the initial momentum 0 1 0 Measure the velocity of the first glider after the impact To do this place the photogates after the second glider from which barrier rod has...

Page 10: ...Air track 10 This demonstrates that the momentum is conserved 0 1 2 In addition as the kinetic energy is conserved 1 2 1 2 0 1 2 1 1 2 2 This gives 1 0 1 2 1 2 2 0 2 1 1 2...

Page 11: ...the track Measure the velocity of the first glider before the impact This gives you the initial momentum 0 1 0 Measure the velocity of the 2 glider assembly after the impact To do this place the phot...

Page 12: ...art and measure the glider s travel time between the 2 photogates Repeat the operation 3 times moving the 2 photogates X mm further along the track keeping the x mm gap between them This demonstrates...

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