Mechanical Comprehension第 99 / 120 题
In a class-one lever, the fulcrum is located:
a.at the load end only
b.at the effort end only
c.between the effort and the load
d.outside the lever
解析
A class-one lever, such as a seesaw, has its fulcrum between the effort and the load. A crowbar prying a nail is another common example.
免费刷完整 120 道题库 — 无需注册。
同考点相关题目
- A pulley system is used to:
- Which of these is an example of an inclined plane?
- The force that opposes the motion of two surfaces sliding against each other is:
- Two gears mesh together. If the driving gear turns clockwise, the driven gear will turn:
- A smaller gear driving a larger gear will cause the larger gear to turn:
- Which object has the most gravitational potential energy?