摘要:

A simple electromagnet is plugged into the headphone jack of a radio, and then placed near the head of a tape player which has been turned on, but with no tape. The radio is heard through the tape player’s speakers.

ISSN:0031-921X    

DOI:10.1119/1.879909

出版商:American Association of Physics Teachers    

年代:1998

数据来源: AIP

摘要:

A suspended magnetic dipole undergoes torsional oscillations in the Earth’s magnetic field. The length of the suspending string is adjusted so that the pendulum periods equals that for torsional oscillations and energy exchange between these modes is observed.

ISSN:0031-921X    

DOI:10.1119/1.879910

出版商:American Association of Physics Teachers    

年代:1998

数据来源: AIP

摘要:

The equipment is capable of demonstrating wavelength change of light in water, diffraction of light by a grating, and refraction of light. Wavelength change can be calculated from data collected using this equipment.

ISSN:0031-921X    

DOI:10.1119/1.879911

出版商:American Association of Physics Teachers    

年代:1998

数据来源: AIP

摘要:

Exponential growth (a fixed fractional increase per unit time) yields a straight line when plotted on a semi-logarithmic graph. This kind of graphic representation provides students with interesting insights into historic and current events that affect us all.

ISSN:0031-921X    

DOI:10.1119/1.879897

出版商:American Association of Physics Teachers    

年代:1998

数据来源: AIP

摘要:

Now, through the forum of a regular column inThe Physics Teacher, we have the opportunity to present some of our best Olympics challenges to all our colleagues. We welcome your contributions.

ISSN:0031-921X    

DOI:10.1119/1.879912

出版商:American Association of Physics Teachers    

年代:1998

数据来源: AIP

摘要:

This article describes in detail how to build low-cost laboratory devices to study angular motion. Three different laboratory investigations are described to study Newton’s second law for rotational motion and the property of angular momentum conservation.

ISSN:0031-921X    

DOI:10.1119/1.879898

出版商:American Association of Physics Teachers    

年代:1998

数据来源: AIP

ISSN:0031-921X    

DOI:10.1119/1.879899

出版商:American Association of Physics Teachers    

年代:1998

数据来源: AIP

ISSN:0031-921X    

DOI:10.1119/1.879913

出版商:American Association of Physics Teachers    

年代:1998

数据来源: AIP

ISSN:0031-921X    

DOI:10.1119/1.879914

出版商:American Association of Physics Teachers    

年代:1998

数据来源: AIP

ISSN:0031-921X    

DOI:10.1119/1.1527618

出版商:American Association of Physics Teachers    

年代:1998

数据来源: AIP