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In this simulation, students set rocket mass before launching to see how high their rocket goes. Transcript Welcome! Your challenge is to make each rocket go as high as possible. For each rocket, note the settings and maximum height you achieve. Mass Mass is measured in kilograms. A rocket with more mass will not accelerate as quickly but will also not be as affected by drag. Thrust Thrust is the upwards force. The amount of thrust affects how much the rocket will speed up. Time of thrust If thrust acts for a longer time, the rocket will speed up more. Drag Drag is the opposing force of air resistance. There is more drag at faster speeds. Mass change As the rocket fuel reacts and is propelled from the rocket, the rocket becomes lighter.