Arm swing in human walking is an active natural motion involving the upper extremities. Earlier studies have described the interrelationship between arms and legs during walking, but the effect of arm swing on energy expenditure and dynamic parameters during normal gait, is inconclusive. The aim of this study was to investigate the effect of…

Describes the construction of a wave generator used to review the algebraic relationships of wave motion. Students calculate and measure the weight needed to create tension to generate standing waves at the first eight harmonics. (MDH)

In this article, the author discusses how video cameras can help students in physical education and sport science classes successfully learn and present anatomy and kinesiology content at levels. Video analysis of physical activity is an excellent way to expand student knowledge of muscle location and function, planes and axes of motion, and…

Describes a college physics class that uses National Guard artillery practice as a practical source for the studying of projectile motion. Provides a firing table for the shell used and the physics involved when using variables such as drag, weight, and elevation. (MVL)

This paper describes life-span development of understanding about pendulum motion and effects of school science. The subjects were 2,766 people ranging from kindergartners up to 88 years senior citizens. The conflict and consensus between children and their parent's understanding of pendulum motion were also analyzed. The kindergartner's…

This study guide is part of a program of studies entitled Science and Engineering Technician (SET) Curriculum. The SET Curriculum integrates elements from the disciplines of chemistry, physics, mathematics, mechanical technology, and electronic technology. The objective of this curriculum development project is to train technicians in the use of…

This report describes the movement characteristics of a three year old boy and girl as they performed a one-handed striking task over a one year period. Observations were made at 4 month intervals as part of a filmed, longitudinal study on the development of motor patterns. The one-handed striking pattern was elicited by asking the children to hit…

Forty-nine physics experiments are included in the teacher's edition of this laboratory manual. Suggestions are given in margins for preparing apparatus, organizing students, and anticipating difficulties likely to be encountered. Sample data, graphs, calculations, and sample answers to leading questions are also given for each experiment. It is…

This study was designed to explore the effects of vestibular stimulation on the developmental behavior, respiratory functioning, weight and length gains, and morbidity and mortality rates of premature infants. A total of 20 infants participated in this study in 4 groups of 5 infants each. Group A infants were placed in a motorized hammock within…

Evidence for inhibitory processes in visual search comes from studies using preview conditions, where responses to new targets are delayed if they carry a featural attribute belonging to the old distractor items that are currently being ignored--the negative carry-over effect (Braithwaite, Humphreys, & Hodsoll, 2003). We examined whether…

This study was designed to discover whether a student learns to imitate the skills demonstrated in a motion picture more accurately when the supportive descriptive terminology is presented in an auditory (spoken) form or in a visual (captions) form. A six-minute color 16mm film was produced--"Determining the Test Weight per Bushel of Yellow Corn".…

Introduction: In 1999-2000, a Norwegian youth cracked a DVD-access code and published a decryption program on the Internet. He was sued by the US DVD Copy Control Association (DVD-CCA) and the Norwegian Motion Picture Association (MAP), allies of the US Motion Picture Association of America (MPAA), arrested by Norwegian police and charged with…

Most children know how to describe an object--by color, size, and shape. Here they'll learn that all objects are made of matter and that all matter can be described with basic scientific properties--mass, weight, volume and density. Each of these properties is described using fun, real-life examples. With clear illustrations and hands-on…

This book is a collection of classroom demonstrations in physics designed to present basic scientific ideas on a concrete level. The topics covered include: physical change and properties of matter; energy waves and energy forms; absorption of heat; radiant energy; vacuum bottles; kinetic molecular theory; states of matter; pressure of air; work…

This paper discusses the benefits that may be realized through "running" time compression (RTC) of video material. RTC is the playback of audio/video at a temporal frame rate faster (with audio pitch correction) than that used when recorded. Previous research has shown that RTC can enhance learning and the retention of content; RTC in…