3 free energy, light, sound & electricity resources for 9th Grade: 3 worksheets. Answers included.
Forms and transfer of energy, light and shadows, sound, circuits. 9th grade students solve more complex equations, work with linear graphs, meet Pythagoras' theorem and trigonometry, and expand binomials.
Students will practice: describing sound as a longitudinal wave; defining amplitude, wavelength, frequency and period; linking frequency to pitch and amplitude to loudness; using the wave equation v = fλ; calculating distances from echoes and sonar; defining current, voltage and resistance and stating their units; connecting ammeters in series and voltmeters in parallel; using Ohm's law (V = IR) to calculate voltage, current and resistance.
Printable practice with an answer sheet.
Students describe sound as a longitudinal wave of compressions and rarefactions and define amplitude, wavelength, frequency and period,…
Students define current, voltage and resistance with their units and measuring instruments, then use Ohm's law (V = IR) to calculate…
Students apply the law of reflection to find angles and describe images in plane mirrors, predict whether light bends towards or away from…
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Forms and transfer of energy, light and shadows, sound, circuits. At 9th Grade, our resources focus on: describing sound as a longitudinal wave; defining amplitude, wavelength, frequency and period; linking frequency to pitch and amplitude to loudness; using the wave equation v = fλ.
Start with the Level 1 or Level 2 worksheet, then move up a level. Finish with the topic test if there is one.
Yes — every worksheet has an answer sheet. Maths answer sheets show the working; English tasks include model answers or success criteria.
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