1) Friction lowers the efficiency of a machine.

2) Friction gradually caused the sliding box to slow down and stop.

3) Having my mother living with us causes friction at home.

4) The force of friction affects the speed at which spacecraft can re-enter the earth's atmosphere.

5) When you rub your hands together the friction produces heat.

6) Sara sensed that there had been friction between her children.

7) A detonator is any device containing an explosive that is actuated by heat, percussion, friction, or electricity.

8) I'm exhausted from the constant friction between my boss and my colleagues.

9) Friction is common when three generations live together.

10) to cause soreness and warmth by friction.

11) Family frictions can interfere with a child's schoolwork.

12) The pistons are graphite-coated to reduce friction.

13) Putting oil on both surfaces reduces friction.

14) Rubbing the stones together produces friction.

15) Her requests for time off created friction with her boss.

16) There's a lot of friction between my wife and my mother.

17) Border clashes have led to increased friction between the two countries.

18) Politics is a source of considerable friction in our family.

19) Oil can reduce friction.

20) His independent attitude was a constant source of friction with his boss.

21) The calender is mainly used of c ord. canvas and fabric frictioning. c ord single or double-coating with one time connectively as well as stock sheeting etc.