visitors this year: 90 Rates: marble and acid Apparatus Clamps, bosses, & stands, marble pieces (large, medium and small sizes), 1M hydrochloric acid HCl, flask, bung, delivery tube, a good gas syringe. Interface, position...
visitors this year: 32 Oscillator motion A position sensor is attached to a weight and spring assembly as shown. This can be used to study simple harmonic motion and the effects of changing the...
visitors this year: 63 Extension of a spring A position sensor is attached to a weight and spring assembly as shown. This can be used to graph the extension of the spring with increasing...
visitors this year: 64 Seismometer The magnetic field sensor responds to magnetic fields. We can use this idea, together with a metre rule damped with a sand bag, to demonstrate how a seismometer might...
visitors this year: 75 A position sensor can be attached to a plant to record its growth. Depending on the plant chosen this is a very slow process. Using a sensor greatly decreases the...
visitors this year: 150 A position sensor can be used to study this. The sensor is attached to a weight and spring assembly as shown. This can also be used to study the effects...
visitors this year: 97 It’s not easy to measure how fast a plant grows. You would probably not be too keen to take measurements every few hours – and especially not overnight. There are...
visitors this year: 197 Is your breathing steady while you sit restfully? How does it change when you talk? How does it change when you exercise? How quickly do you recover after exercise? To...
visitors this year: 94 Hydrochloric acid and marble (CaCO3) react to form carbon dioxide gas. The gas can be captured and measured using a gas syringe. A position sensor can be attached to the...
visitors this year: 105 We used a turn (or position) sensor connected to the computer and recorded the swings of a pendulum made of a metal rod and a weight. We tried again this...
visitors this year: 25 Simple harmonic motion is rarely as simple as the lesson title implies. This potentiometer-based sensor measures angles as its core rotates. Attaching a ruler as shown (or hack saw blade)...
visitors this year: 58 This sensor allows superb and easy to do investigations into the swing of a pendulum leading on to studies of harmonic motion and damping. (See several examples nearby). It allows...
rogerfrost.com is a compendium of ideas for using technology with sciencey questions in mind. Started in 1995 to offer ideas to school science teachers, Roger Frost expanded the coverage to home automation, gadgets and sensors to measure, or understand, what’s going on around him.
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Roger Frost has been writing about technology since 1988 and this web includes articles; radio interviews with scientists and tutorials to use technology at home and the classroom.
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