For a study group preparing for college-level physics, Lewis Epstein's 'Thinking Physics' is recommended as a useful resource. The group consists of 18-year-olds about to enter a BS degree program in physics. However, the discussion notes that difficult multiple-choice questions are less common in physics after GCSE due to various reasons. While challenging problem sources can be suggested, the focus remains on finding resources specifically tailored to multiple-choice formats. Input from others in the forum is encouraged for more targeted recommendations.
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mjain79
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I need to quiz small study group. Looking for book/other-resources for difficult multiple choice questions on physics (motion, rotation, light, electro-magnetics etc.)
Do we even know? My understanding of dark energy is that particles come into existence, exert and outward force, then vanish. My problem with that is how, of course, then how does dark energy know to push everything in the same direction? The pressure exerted would be in all directions, even if the space was moving so why isn't stuff pushed all over the sky?
Thanks - rev