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 sensor. Setting up Set...
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 mass or damping. Apparatus...
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 mass. Apparatus Clamps &...
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 function. If the apparatus...
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 time taken before the...
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 of changing the mass...
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 ways, however, of seeing...
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 find out you can...
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 syringe to record the...
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 time connecting the sensor...
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) gives to a near-perfect...
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 you to record the...
rogerfrost.com is a compendium of ideas for using technology to find answers to sciencey questions. Since 1995 it has provided ideas to school science teachers. Since 2020 we’ve focussed on questions around the home with a new home automation section. So today we look at ways to measure and monitor around the house.
You will find everything here tagged and indexed by topic or technology.
Roger Frost was a writer from 1988 and this web includes many of his articles for magazines and newspapers. They tell how the early Internet developed; how real scientists work and how real people, like you might use technology at home or school.
Do please add a comment to an article or say hi via the social links. Use this content freely and link back here if you can.
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