Nội dung text 2.Speed, velocity and acceleration.pdf
Topic 2 – Speed, velocity and acceleration Page | 1 IGCSE Physics 0625 Paper 2 Pastpapers-2020 www.HakimAbbas.site Topic 2 – Speed, velocity and acceleration 1 1 2 2 3 3
Topic 2 – Speed, velocity and acceleration Page | 2 IGCSE Physics 0625 Paper 2 Pastpapers-2020 www.HakimAbbas.site 4 4An object travels in a circular path at constant speed. Which statement about the object is correct? A It has changing kinetic energy. B It has changing momentum. C It has constant velocity. D It is not accelerating. 5 5 6 6The graph shows how the distance travelled by a vehicle changes with time. S distance Q R 0 P 0 time Which row describes the speed of the vehicle in each section of the graph? P to Q Q to R R to S A constant zero constant B constant zero decreasing C increasing constant decreasing D increasing zero constant
Topic 2 – Speed, velocity and acceleration Page | 4 IGCSE Physics 0625 Paper 2 Pastpapers-2020 www.HakimAbbas.site 9 9 Two runners take part in a race. The graph shows how the speed of each runner changes with time. runner 1 speed runner 2 0 0 t time What does the graph show about the runners at time t ? A Both runners are moving at the same speed. B Runner 1 has zero acceleration. C Runner 1 is overtaking runner 2. D Runner 2 is slowing down. 10 10A train begins a journey from a station and travels 60 km in a time of 20 minutes. What is the average speed of the train? A 3.0 m / s B 5.0 m / s C 50 m / s D 60 m / s 11 11The graph represents the motion of a car. What is the distance travelled by the car while it is moving at a constant speed? A 100 m B 150 m C 250 m D 300 m