A) Helical gear B) Spur gear C) Bevel gear D) Worm gear
A) It increases friction B) It reduces mechanical advantage C) It can change the direction and magnitude of a force D) It limits motion
A) Compound pulley B) Moveable pulley C) Fixed pulley D) Block and tackle pulley
A) The pinion gear engages with the teeth of the rack to move in a straight line B) By rolling the gears on a surface C) By increasing friction between gears D) By using a belt drive system
A) Worm gear B) Spur gear C) Helical gear D) Bevel gear
A) Bevel gear B) Rack and pinion gear C) Spur gear D) Helical gear
A) By changing the speed at which force is applied B) By reducing the number of gears C) By increasing the size of the gears D) By adding more power sources
A) Compound gear trains move slower B) Simple gear trains are more complex C) Simple gear trains have bigger gears D) Compound gear trains have multiple intermediate gears
A) Low gear reduction B) Flexible movement C) Slippery surface D) High gear reduction |