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Marchewka, Avi – Physics Education, 2021
In order to describe the velocity of two bodies after they collide, Newton developed a phenomenological equation known as 'Newton's experimental law' (NEL). In this way, he was able to practically bypass the complication involving the details of the force that occurs during the collision of the two bodies. Today, we use NEL together with momentum…
Descriptors: Physics, Scientific Principles, Scientific Concepts, Energy
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Amir, Nazir; Abdullah, Nor'Aini Bte – Physics Education, 2021
A way to promote student interest and engagement in physics is by capitalizing on students' skills in arts and crafts to design and make physics-based toys. This article illustrates how two students (averaging 14 years of age) in the authors' science class designed and fabricated a variation of a physics-based teaching aid that demonstrates the…
Descriptors: Foreign Countries, Science Interests, Physics, Learner Engagement
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Cross, Rod – Physics Education, 2021
The vertical bounce of a plastic egg was investigated by dropping the egg on a horizontal surface and filming the result with a video camera. If the egg is dropped on one end then it bounces just like a spherical ball. If the top end of the egg is pointing forwards or backwards when it lands on the surface, or if the egg is spinning when it lands,…
Descriptors: Science Instruction, Motion, Kinetics, Science Experiments
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Gainer, Alexandre; Waxman, Michael – Physics Teacher, 2021
Friction is one of the most important forces studied in classical mechanics, and still is the subject of pedagogical literature. In a small series of problems stated below, we consider a particle sliding down a curve under the actions of gravity and kinetic friction. Unlike many of the referenced sources, we neglect the centripetal force arising…
Descriptors: Mechanics (Physics), Scientific Concepts, Kinetics, Motion
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Ieritano, Christian; Montgomery, Carlee A.; Goll, Julie M.; Chan, Ho Yin – Journal of Chemical Education, 2021
The effects of kinetic vs thermodynamic control on "endo"/"exo" stereoisomer ratios can be observed in a simple Diels-Alder reaction between "N"-phenylmaleimide and furan. The use of microwave-promoted synthesis affords the cycloadducts in yields ranging from 65-100%, employing reaction times of 1-10 min at…
Descriptors: Science Instruction, Science Experiments, Thermodynamics, Kinetics
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Bates, Alan – Physics Teacher, 2021
The law of conservation of momentum can be applied to a wide range of processes whether it is the collision of subatomic particles, rocket propulsion, or the recoil of a cannon. In this experiment two technologies, the Arduino microcontroller and a PASCO smart cart, are used to create a movable rubber band launcher. The Arduino microcontroller is…
Descriptors: Science Instruction, Motion, Physics, Scientific Concepts
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Gróf, Andrea – Physics Teacher, 2021
Owing to the presence of the Coriolis effect, the rotation of Earth has a multitude of surprising consequences that make the mechanics of the atmosphere or the oceans different from that of a fluid in a container. Since the Coriolis effect also captures the imagination of screenwriters, contributing to the continual exposure of students to bogus…
Descriptors: Science Instruction, Scientific Concepts, Motion, Physics
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Gössling, Alexander; Becker, Sebastian; Kuhn, Jochen – Physics Teacher, 2021
Supersonic free-fall jumps are excellent examples of kinematics in the context of drag. They have attracted a lot of media, public, and scientific interest. In 2012, Felix Baumgartner jumped from a height of approximately 38.969 km. During his flight he reached a top speed of 373 m/s, becoming the first human to travel faster than the speed of…
Descriptors: Science Instruction, Science Experiments, Physics, Kinetics
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Habiddin, Habiddin; Page, Elizabeth Mary – International Journal of Science and Mathematics Education, 2021
The published study of Nurrenbern and Pickering in 1987 raises awareness among chemistry educators that students' success in answering numerical questions does not necessarily reflect their degree of understanding of the related chemical concepts. Efforts have been made to provide more opportunities for students to improve their ability in…
Descriptors: Problem Solving, Mathematics Skills, Chemistry, Kinetics
Obaya Valdivia, Adolfo E.; Osornio, Carlos Montaño; Vargas-Rodríguez, Yolanda Marina – Online Submission, 2021
In the resolution of problems in chemical kinetics and catalysis the mathematical models relate the independent variable that is usually time, with the dependent variable which is normally the concentration of a reactant. They conform to linear models, whose parameters such as the ordering to origin and the slope are kinetic parameters, applying…
Descriptors: Problem Based Learning, Problem Solving, Chemistry, Kinetics
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Cross, Rod – Physics Education, 2021
A simple experiment for students is to measure the coefficient of restitution (COR) for a vertical bounce on a horizontal surface. In this paper, measurements are presented of the COR for a tennis ball bouncing at an oblique angle on a horizontal surface. Changes in the horizontal and rotation speeds were also measured, by filming the bounce with…
Descriptors: Science Experiments, Science Instruction, Physics, Scientific Concepts
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Stilwell, Matthew D.; Yao, Chunhua; Vajko, Dale; Jeffery, Kelly; Powell, Douglas; Wang, Xudong; Gillian-Daniel, Anne Lynn – Science Teacher, 2021
What if "every breath you take, every move you make" (Sting 1983) could be harnessed to produce renewable energy? Triboelectric nanogenerators (TENGs) are state-of-the-art devices researchers are studying to do just that--convert kinetic energy into electrical energy at the source (Saurabh Rathore 2018). This type of electrical energy is…
Descriptors: Science Instruction, Energy, Power Technology, Science Experiments
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Rusydi, Febdian; Madinah, Roichatul; Puspitasari, Ira; Mark-Lee, Wun F.; Ahmad, Azizan; Rusydi, Andrivo – Biochemistry and Molecular Biology Education, 2021
The fundamental mechanism of biochemistry lies on the reaction kinetics, which is determined by the reaction pathways. Interestingly, the reaction pathway is a challenging concept for undergraduate students. Experimentally, it is difficult to observe, and theoretically, it requires some degree of physics knowledge, namely statistical and quantum…
Descriptors: Biochemistry, Science Instruction, Kinetics, Scientific Concepts
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Sutiani, Ani; Situmorang, Manihar; Silalahi, Albinus – International Journal of Instruction, 2021
The development of good learning resources on inquiry learning model with science literacy as a strategy to facilitate active learning has become a trend in education. Critical thinking ability is needed as a strategy to build students competencies in problem solving and discovery as required in science learning. This study aims to develop a set…
Descriptors: Active Learning, Inquiry, Scientific Literacy, Science Process Skills
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Mungan, Carl E. – Physics Teacher, 2021
Races between moving objects are an engaging way to teach dynamics to introductory physics students. One standard example consists in racing hollow and solid cylinders as they roll down an inclined plane. Another striking demonstration is a race between two marbles on side-by-side tracks that start and end together, but with one track taking a…
Descriptors: Physics, Motion, Introductory Courses, Demonstrations (Educational)
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