The interrupted pendulum: A laboratory experiment in the conservation of energy

Wood, Herbert T.

doi:10.1119/1.2344063

Cited by 3 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In particular, if the familiar demonstration of a marble on a loop-the-loop track is performed [20], one quickly discovers that the marble has to be released from a height well above the idealized prediction of 2.7 times the radius of the loop. (Much closer agreement with idealized theory is obtained if the demonstration is instead performed using an interrupted pendulum [21], since air drag is much weaker than rolling friction. )…”

Section: Discussionmentioning

confidence: 53%

Rolling friction on a wheeled laboratory cart

Mungan¹

2012

Phys. Educ.

View full text Add to dashboard Cite

A simple model is developed that predicts the coefficient of rolling friction for an undriven laboratory cart on a track that is approximately independent of the mass loaded onto the cart and of the angle of inclination of the track. The model includes both deformation of the wheels/track and frictional torque at the axles/bearings. The concept of rolling friction is contrasted with the static or kinetic friction that in general is also present, such as for a cylinder or ball rolling along a horizontal or inclined surface.

show abstract

Section: Discussionmentioning

confidence: 53%

Rolling friction on a wheeled laboratory cart

Mungan¹

2012

Phys. Educ.

View full text Add to dashboard Cite

show abstract

Nonisochronism in the interrupted pendulum

Gil

Gregorio

2003

American Journal of Physics

View full text Add to dashboard Cite

We experimentally studied the dependence of the period of the interrupted pendulum as a function of the amplitude for small angles of oscillation. We found a new kind of dependence of the period with the amplitude of the pendulum that indicates that if the interruption is not located on the main vertical axis that contains the point of suspension, the period of the interrupted pendulum is highly nonisochronous and does not converge to a definite value as the maximum amplitude approaches zero. We have developed a simple model that satisfactorily explains the experimental data with no adjustable parameters. This property of the interrupted pendulum is a general property of the parabolic potential consisting of two quadratic forms with different curvatures that join at a point different from the apex or the vertex.

show abstract

Revisiting the interrupted pendulum with large data sets

Froehlich

2019

The Physics Teacher

View full text Add to dashboard Cite

The interrupted pendulum: A laboratory experiment in the conservation of energy

Cited by 3 publications

References 0 publications

Rolling friction on a wheeled laboratory cart

Rolling friction on a wheeled laboratory cart

Nonisochronism in the interrupted pendulum

Revisiting the interrupted pendulum with large data sets

Contact Info

Product

Resources

About