1) What can force do? a) Change shape b) Change direction c) Change speed d) Move object e) All of them 2) What is the meaning of the Net Force? a) push or pull on boject b) the difference between two force c) the sum of all the forces d) the force from spider 3) What is the Magnitude of this net force? a) 50 N b) 20 N c) 70 N d) 30 N 4) What is the direction of this net force? a) Go up b) Go left c) Go right d) Go down 5) What is the Magnitude of this net force? a) 10 N b) 15 N c) 25 N d) 40 N 6) What is the direction of this net force? a) Go up b) Go left c) Go right d) Go down 7) What is the Magnitude of this net force? a) 20 N b) 50 N c) 45 N d) 65 N 8) What is the direction of this net force? a) Go up b) Go left c) Go right d) Go down

排行榜

视觉风格

选项

切换模板

恢复自动保存: