Big Idea: All matter is made of small particles and this can explain many of its properties. More info...
Demonstration: A brief introduction to measuring mass by balancing.
Demonstration: A balance which introduces the principle of reading masses against a scale.
Class practical: Students can make an amazing instrument which is able to measure the mass of a hair or a grain of sand.
Demonstration: Measurement of regular time intervals.
The verb to weigh and the noun weight are used in conflicting ways, even in science. You cannot hope to clear up the great...
To many students, the image of science is one of exactness and perfection. And yet, good scientists make rough estimates again...
The force due to the weight of the jars makes them rotate as well as move down the slope. The empty jar’s mass is around its...
Recognising and celebrating outstanding contributions to the field of physics education.