Comparing AC and DC Voltages
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by Mr Mallon
4M ago
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Cosmological Terms
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by Mr Mallon
5M ago
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What you can find from Redshift.
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by Mr Mallon
5M ago
Redshift ..read more
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Changing the subject!
Helpmyphysics
by Mr Mallon
5M ago
An important skill in physics is to rearrange formulas. Click the picture to watch the lesson movie ..read more
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Weight parallel to a slope.
Helpmyphysics
by Mr Mallon
5M ago
A quick video to calculate the acceleration down a slope ..read more
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The period of a satellite is the time it takes fo...
Helpmyphysics
by Mr Mallon
5M ago
The period of a satellite is the time it takes for one complete orbit. Click the picture to see two satellites orbiting the Earth. Which one has the biggest period. Determine the periods of each satellite ..read more
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AC and DC on an Oscilloscope Screen
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by Mr Mallon
6M ago
For Higher Physics students: Determine the period and frequency of the ac supply Find the rms voltage of the ac signal ..read more
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Momentum Lab
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by Mr Mallon
6M ago
Click the above picture to take you to your momentum lab ..read more
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Measuring Instantaneous speed
Helpmyphysics
by Mr Mallon
6M ago
It is impossible to measure the speed of an object at an instant. It is only possible to find the object’s speed over a small distance and time. This is achieved using a light gate and a thin card of length say 10 cm. When the card interrupts the light beam it turns off a light sensor and starts an electronic timer. The timer stops when the card passes the light beam and the sensor picks up the light signal again. The near instantaneous speed is calculated by ..read more
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Combine those resistors!
Helpmyphysics
by Mr Mallon
1y ago
Use this sim to find out about the resistance of combined resistors ..read more
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