Tag Archives: teaching physics

Radioactive Decay

Radioactive isotopes of elements have unstable arrangement of neutrons and protons in their nuclei. To become more stable, they emit alpha or beta particles. But this changes the number of protons and neutrons in the nucleus resulting in the formation … Continue reading

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Resistors

  1.  What are resistors? 2.  What is the function of resistors in complicated circuits such as those of TVs and computers? 3.  Name four different types of resistors. 4.  What type of resistor is used to control the brightness … Continue reading

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Resistance

  1.  What is resistance? 2.  The unit of resistance is __________. 3.  What is the symbol for resistance? 4.  Write the equation that is used to measure resistance. 5.  Which are the four factors affecting the resistance of a … Continue reading

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Voltage

1.  What is Voltage? 2.  What is the scientific name for voltage? 3.  Voltage is measured with a ____________. 4.  The unit of voltage is __________. 5.  If a cell has 1 volt, this means that 1 joule of potential … Continue reading

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Electric Current

1.  What is an electric circuit? 2.  What is the function of a battery in a circuit? 3.  What happens when the switch is turned off in a circuit? 4.  Draw a circuit diagram using some of these circuit symbols. … Continue reading

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