1) A force that slows you down a) Gravity b) Behaviour c) Drag d) Thrust e) Propeller f) Lift 2) These forces are in equilibrium when an airplane is flying a) Thrust and drag b) Pull and Push c) Propeller and Behaviour d) Lift and drag e) Gravity and lift f) Gravity and push 3) This type of seabird flies without flapping too much because... a) It does not need it. b) Only the wind is enough c) It never flaps d) It goes along with the wind current e) It is big enough f) It has very long wings 4) What propels a rocket? a) The wings b) The fire c) The engine d) The wind e) The point f) The air 5) What is the strongest force in a hot air balloon? a) The wings b) The wind c) Drag d) Gravity e) Pull f) Lift 6) Airplane aerodynamic is a) The force of the wind b) The way air goes around c) The mixture betwwen air and the airplane d) The wind and thrust e) The way the airplane interacts with the wind f) Gravity and drag 7) A project of the the first heliopter was found in his workshop. His name was? a) Salvador Dali b) Michel Angelo c) Rafaello d) Leonardo D' Vinci e) Santos Dumont f) William Wright 8) The Coanda Effect is related to... a) The way the wind flows in Africa b) The way air flows around c) The way a ball bounces on air d) The way the wind flows around round surfaces. e) The way birds fly away. f) The way Henry Coanda observed the wind.

Y6 - Checking Progress

打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？