ics Flashcards","topicId":"1ccb7ab1-672c-47e1-8e44-fe1b40c0b934","topicSlug":"language-of-kinematics","cards":[{"id":"de360d88-2e7f-43d1-8b2d-2dc5c88279fb","cardType":"basic","front":"What physical detail is ignored when a body is modelled as a particle?","back":"Its dimensions.","points":1,"mcqOptions":null},{"id":"55f71071-ed62-4a1b-9d66-137fe2e435a9","cardType":"basic","front":"When is it reasonable to model a train as a particle?","back":"When its length is unimportant relative to the journey.","points":2,"mcqOptions":null},{"id":"acb52fda-8a0c-468c-94b2-29d3003fa14e","cardType":"basic","front":"If right is positive, what does $x=-3\\text{ m}$ indicate?","back":"The particle is 3 m left of the origin.","points":1,"mcqOptions":null},{"id":"208676b5-707f-4bd1-8347-d2a001240678","cardType":"basic","front":"Does a negative position mean that a particle has travelled backwards?","back":"No - it only identifies the particle's side of the origin.","points":1,"mcqOptions":null},{"id":"ed8b9c76-e18f-4dec-bacc-e6fef95948a4","cardType":"cloze","front":"Distance travelled is a [ ] and cannot be negative.","back":"Distance travelled is a scalar and cannot be negative.","points":null,"mcqOptions":null},{"id":"7c0a863e-2dbc-41ee-9888-4c17206d1b91","cardType":"cloze","front":"Displacement is a [ ], so its sign indicates direction.","back":"Displacement is a vector, so its sign indicates direction.","points":null,"mcqOptions":null},{"id":"5d4c4bd6-c13e-417d-8ec4-396c8085c2c5","cardType":"basic","front":"A particle moves from $x_1$ to $x_2$. How is its displacement calculated?","back":"$x_2-x_1$.","points":1,"mcqOptions":null},{"id":"c98e1655-ebfa-49c8-afeb-95e274b50c7d","cardType":"basic","front":"When does final position equal displacement?","back":"Only when the particle starts at the origin.","points":1,"mcqOptions":null},{"id":"4753b553-27b0-4b5d-91d0-9eb92d620e14","cardType":"basic","front":"Why can distance travelled exceed the magnitude of displacement?","back":"Distance includes the whole path; displacement uses only initial and final positions.","points":2,"mcqOptions":null},{"id":"0b8d47f5-25d9-47fb-a58c-3c3bb5402eca","cardType":"cloze","front":"Average speed is $\\text{[...]}$.","back":"Average speed is $\\boxed{\\dfrac{\\text{total distance travelled}}{\\text{total time taken}}}$.","points":null,"mcqOptions":null},{"id":"5b5003dd-3183-4a0b-ab51-e5bfbc86da2d","cardType":"cloze","front":"Average velocity is $\\text{[...]}$.","back":"Average velocity is $\\boxed{\\dfrac{\\text{total displacement}}{\\text{total time taken}}}$.","points":null,"mcqOptions":null},{"id":"049447d6-cdf2-4460-aea8-3cfb86add1e2","cardType":"basic","front":"A particle has velocity $-7\\text{ m s}^{-1}$. What is its speed?","back":"$7\\text{ m s}^{-1}$.","points":1,"mcqOptions":null},{"id":"c6d8e669-13ee-40fc-af07-ad0cdcd06e8e","cardType":"basic","front":"A particle returns to its starting point. What is its average velocity?","back":"$0\\text{ m s}^{-1}$.","points":1,"mcqOptions":null},{"id":"e4d387f7-ace2-4987-a5c9-feefca67868c","cardType":"cloze","front":"Uniform velocity gives [ ].","back":"Uniform velocity gives zero acceleration.","points":null,"mcqOptions":null},{"id":"e94507f3-2d85-41df-a928-08a9ec46c867","cardType":"cloze","front":"With uniform acceleration, velocity changes by [ ].","back":"With uniform acceleration, velocity changes by equal amounts in equal time intervals.","points":null,"mcqOptions":null},{"id":"5c64d2c1-4b45-4fcd-a746-06aa11407ce7","cardTyp

3.2.1 Language of kinematics Flashcards

3.2.1 Language of kinematics Flashcards