1.

Fill in the blanks 1. To ………… a screw, it should be rotated clockwise. 2. The use of wheel and axle decrease ………… force. 3. Machines should be properly ……………… to increase their life and efficiency. 4. By the use of pulley, the ………….. of force gets changed.

Answer»

1. rotate 

2. pulling 

3. handled 

4. direction



Discussion

No Comment Found