500 prompts matching "Exam prep: Snell's law and the refractive index"
Worked example: Finding acceleration from a velocity-time graph
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Practice set: Finding distance from the area under a graph
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Spot my mistake: Using an equation of motion with the wrong sign for deceleration
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Practice set: Weight as the force of gravity acting on a mass
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Real-life Nigeria: Newton's laws in Nigerian road safety
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Physics at work: Dynamics in vehicle and machine design
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Let me explain: Impulse and its relation to change of momentum
I have just studied impulse and its relation to change of momentum in my SS1 Physics class
Practice set: The principle of conservation of linear momentum
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Real-life Nigeria: Crumple zones and safety in Nigerian vehicles
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Physics at work: Momentum in sport and in engineering
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Quiz: Nigeria's energy resources and how each is used
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Quiz: What mechanical advantage, velocity ratio and efficiency each measure
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Real-life Nigeria: Simple machines on Nigerian farms and in workshops
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Physics at work: Machine design and maintenance as work
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Let me explain: Latent heat, and why temperature stays constant during a change of state
I have just studied latent heat, and why temperature stays constant during a change of sta
Practice set: Evaporation, and how it differs from boiling
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Spot my mistake: Assuming evaporation happens only at the boiling point
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Physics at work: Refrigeration and air conditioning as trades
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Let me explain: Linear expansivity and its definition
I have just studied linear expansivity and its definition in my SS1 Physics class. Let me
Practice set: Cubic expansivity and superficial expansivity
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