500 prompts matching "An echo calculation that forgets the return journey"
Exam prep: Motion under gravity and free fall
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Spot my mistake: Confusing the gradient with the area on a motion graph
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Let me explain: Friction, its causes and its effects
I have just studied friction, its causes and its effects in my SS1 Physics class. Let me e
Practice set: What circular motion is, and what keeps a body in it
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Exam prep: Centripetal force and centripetal acceleration
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Teach me: What makes a quantity scalar or vector
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Quiz: Sorting given quantities into scalars and vectors
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Worked example: Adding two vectors by the parallelogram rule
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Spot my mistake: Adding vectors as though they were scalars
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Teach me: What work means in physics
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Quiz: Calculating the work done by a force
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Worked example: Calculating the work done against gravity
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Teach me: What power means, and how it is measured
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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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Practice set: Efficiency, and why no machine is perfect
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Exam prep: Calculating the efficiency of a machine
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Teach me: Kinetic energy, and what it depends on
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Quiz: Calculating the kinetic energy of a moving body
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Exam prep: Energy transformations in a falling body
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