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| Conservation (Concept) | 8 |
| Physics | 8 |
| Energy | 5 |
| Science Instruction | 5 |
| Secondary Education | 5 |
| Mechanics (Physics) | 4 |
| Teaching Methods | 4 |
| Sciences | 3 |
| Astronomy | 2 |
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| Physics Teacher | 8 |
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| Ehrlich, Robert | 1 |
| Galli, John Ronald | 1 |
| Long, Kevin R. | 1 |
| Mancuso, Richard V. | 1 |
| McGervey, John D. | 1 |
| Noll, Ellis D. | 1 |
| Taylor, David P. | 1 |
| Tsaoussis, Dimitris S. | 1 |
| Zheng, T. F. | 1 |
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| Guides - Classroom - Teacher | 8 |
| Journal Articles | 8 |
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| Practitioners | 8 |
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Peer reviewedNoll, Ellis D. – Physics Teacher, 1996
Presents a derivation of Kepler's Third Law for elliptical orbits that requires students to have a knowledge of angular momentum and conservation of energy. (JRH)
Descriptors: Astronomy, Conservation (Concept), Physics, Secondary Education
Peer reviewedEhrlich, Robert – Physics Teacher, 1996
Outlines the use of the toy popularly known as Newton's Cradle or Newton's Balls in illustrating the laws of conservation of momentum and mechanical energy. Discusses in detail the joint effects of elasticity, friction, and ball alignment on the rate of damping of this apparatus. (JRH)
Descriptors: Conservation (Concept), Energy, Mechanics (Physics), Physics
Peer reviewedTaylor, David P. – Physics Teacher, 1995
Presents an experiment that demonstrates conservation of momentum and energy using a box on the ground moving backwards as it is struck by a projectile. Discusses lab calculations, setup, management, errors, and improvements. (JRH)
Descriptors: Conservation (Concept), Energy, Mechanics (Physics), Physics
Peer reviewedTsaoussis, Dimitris S. – Physics Teacher, 1995
Presents exercises that analyze the additive property of energy. Concludes that if a body has more than one component of energy depending on the same physical quantity, the body's total energy will be the algebraic sum of the components if a linear relationship exists between the energy components and that physical quantity. (JRH)
Descriptors: Addition, Conservation (Concept), Energy, Equations (Mathematics)
Peer reviewedGalli, John Ronald – Physics Teacher, 1995
Presents a mechanical model that is able to duplicate the torque-free twist of a real cat. Discusses results of experiments that analyze its free fall from an inverted position. (JRH)
Descriptors: Conservation (Concept), Higher Education, Mechanics (Physics), Physics
Peer reviewedZheng, T. F.; And Others – Physics Teacher, 1995
Applies the concepts of kinematics and conservation of mechanical energy to calculate the time needed to reach a certain point along semicircular and parabolic paths. Presents numerical calculations for the critical speed thresholds for the paths of semicircular and parabolic curves. (JRH)
Descriptors: Conservation (Concept), Gravity (Physics), Higher Education, Mechanics (Physics)
Peer reviewedMancuso, Richard V.; Long, Kevin R. – Physics Teacher, 1995
Presents the Astro-Blaster as a method of the laws of conservation of momentum and energy during the creation of a supernova. Several elastic balls are aligned for a drop, followed by multiple collisions which result in the top ball reaching tremendous heights relative to the drop height. (JRH)
Descriptors: Astronomy, Conservation (Concept), Elementary Secondary Education, Energy
Peer reviewedMcGervey, John D. – Physics Teacher, 1995
Describes some inexpensive activities and demonstrations that illustrate basic concepts that are often overlooked, as a low-cost means to foster student participation in physics classes. Activities described deal with acceleration and forces, freefall, conservation of energy and momentum, conservation of angular momentum, and resonance. (JRH)
Descriptors: Acceleration (Physics), Activities, Conservation (Concept), Demonstrations (Science)
