Category: Physics
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Subatomic particles (Basic Science Review)
The most important things you need to know about subatomic particles. Part of the Brief Science Review series.
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Alpha, beta and gamma rays (Basic science review)
A brief summary of the most important things to know about alpha, beta and gamma rays. Part of the Brief Science Review series.
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Homopolar motor
This simple project was done as a demonstration for Science Club. We were discussing how a speaker works. In fact, all movement due to electricity is caused by the same effect: the interaction of a moving charge in a magnetic field. In this case, the electric current is moving from the positive end of the…
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Electromagnetism
Learning objectives: Electricity flowing through a wire creates a magnetic field. An electromagnet can attract or repel a magnet, just like a permanent magnet does. The changing current of a speaker causes the magnetic field in the wire to change, pulling and then pushing the wire toward and then away from the magnet. Special projects:…
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Strobe effects
Learning objectives: Understand how a strobe light works and how it can be used Understand why a strobe light makes it look like motion stops Use an oscilloscope to visualize a changing current Understand how the timer circuit we made previously can be used to detect lighting conditions Understand how the timer circuit can be…
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Scientific Notation (Basic science review)
The most important things you need to know about Scientific Notation. Part of the Basic Science Review series.
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Greek letters we’ve used
Greek letters are commonly used in science. There are 24 Greek letters. Here are the ones we have discussed recently. Greek letter Name Uses α alpha alpha particles, indicates the first angle of a triangleopposite the side a β beta beta particles, indicates the second angle of a triangle opposite the side b γ gamma…
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Electromagnetic Spectrum (Basic science review)
The most important things you need to know about the electromagnetic spectrum. Part of the Basic Science Review series.
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Sound
Learning objectives: Understand the difference between longitudinal and transverse waves Know that frequency is measured in units called Hertz, which is abbreviated Hz, which represents the number of cycles/second. Know that humans can hear frequencies from about 20 Hz to 20,000 Hz. Understand that the amplitude of a sound wave determines how loud it is.…
