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Worksheetsphy_2.5_Moment 力矩 1
Total questions: 10
Worksheet time: 3hrs 30mins
The equation of calculating moment is
計算力矩的公式是
τ = F m
τ = F s
τ = F d
τ = F v
What is the unit of moment?
力矩的單位是甚麼?
N s
N s-1
N m
N m-1
Find the direction of the moment produced by the force F about point O.
指出力 F 對 O 點所產生的力矩方向。
upwards 向上
right 向右
clockwise 順時針
anticlockwise 逆時針
Find the moment about point B by the force.
求該力對點B的力矩。
100 Nm (clockwise 順時針)
100 Nm (anticlockwise 逆時針)
1 Nm (clockwise 順時針)
1 Nm (anticlockwise 逆時針)
Find the moment about point O by the force.
求該力對點O的力矩。
0.5 Nm (clockwise 順時針)
0.5 Nm (anticlockwise 逆時針)
50 Nm (clockwise 順時針)
50 Nm (anticlockwise 逆時針)
Find the moment about point A by the force.
求該力對點A的力矩。
0
0.5 Nm (clockwise 順時針)
1 Nm (clockwise 順時針)
10 Nm (clockwise 順時針)
Find the magnitude and direction of the moment produced by the force about the hinge.
求圖中力對門鉸產生的力矩量值和方向。
800 N m（clockwise 順時針）
400 N m（clockwise 順時針）
8 N m（clockwise 順時針）
4 N m（clockwise 順時針）
Find the net moment about the centre O of the rod.
求對棒中心點O的淨力矩。
0.1 Nm (anticlockwise 逆時針)
0.2 Nm (clockwise 逆時針)
10 Nm (clockwise 逆時針)
20 Nm (clockwise 逆時針)
Find the net moment about point B
求對點B的淨力矩。
0.4 Nm (clockwise 逆時針)
1.6 Nm (clockwise 逆時針)
40 Nm (clockwise 逆時針)
160 Nm (clockwise 逆時針)
Find the net moment about the point C.
Take the clockwise direction as positive.
求對點C的淨力矩。
取順時針方向為正。
0
20 Nm
- 20 Nm
- 40 Nm
