500 prompts matching "Calculating the speed of sound from an echo"
Quiz: Finding speed from the gradient of a distance-time graph
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Worked example: Calculating wave speed from frequency and wavelength
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Worked example: Calculating the resultant of two forces
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Exam prep: Calculating the heat absorbed during a change of state
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Worked example: Calculating the expansion of a metal rod
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Spot my mistake: Measuring angles from the surface instead of from the normal
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Worked example: Calculating the efficiency of an energy transfer
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Worked example: Calculating the mechanical advantage of a lever
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Spot my mistake: Reading the spring constant from the wrong part of the graph
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Exam prep: Calculating the range of a projectile
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Quiz: Calculating the kinetic energy of a moving body
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Quiz: Calculating the moment of a force about a point
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Quiz: Calculating the density of a regular solid
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Quiz: Speed and velocity, and the difference between them
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Worked example: Finding acceleration from the gradient of a velocity-time graph
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Quiz: The types of force — contact forces and field forces
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Quiz: Calculating power from work and time
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Worked example: Calculating the power of a machine lifting a load
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Exam prep: Calculating the efficiency of a machine
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Practice set: The conservation of mechanical energy
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