What makes the first class lever second class lever third class lever different?

Answer 1

• 1st order levers have the fulcrum between the load and effort arms. The mechanical advantage of these levers can be greater or less than 1, depending on the length of the arms.
• 2nd order levers have the load portion between the effort portion and the fulcrum. These always have a mechanical advantage greater than 1. They increase the force exerted at the expense of distance.
• 3rd order levers have the effort portion between the load portion and the fulcrum. These always have a mechanical advantage less than 1. They decrease the force exerted with a gain to the distance.

Answer 2

The three types of lever are distinguished by the relative positions of the fulcrum, load, and effort arms.

# 1st order levers have the fulcrum between the load and effort arms. The mechanical advantage of these levers can be greater or less than 1, depending on the length of the arms.

# 2nd order levers have the load portion between the effort portion and the fulcrum. These always have a mechanical advantage greater than 1. They increase the force exerted at the expense of distance.

# 3rd order levers have the effort portion between the load portion and the fulcrum. These always have a mechanical advantage less than 1. They decrease the force exerted with a gain to the distance. All three types conserve the amount of work done.

Answer 3

The position of the load, fulcrum, and effort are in different spots. In a first class lever, the fulcrum is between the load and effort. In a second class lever, the load is between the force and fulcrum. And a in a third class lever, the force is in between the fulcrum and load.

Answer 4

They simply differ by the positions of the load and the fulcrum relative to the pivot.

CLASS ONE: fulcrum is in between load and effort.

CLASS TWO: load is in between fulcrum and effort.

CLASS THREE: effort is in between load and fulcrum.

• 1st order levers have the fulcrum between the load and effort arms. The mechanical advantage of these levers can be greater or less than 1, depending on the length of the arms.
• 2nd order levers have the load portion between the effort portion and the fulcrum. These always have a mechanical advantage greater than 1. They increase the force exerted at the expense of distance.
• 3rd order levers have the effort portion between the load portion and the fulcrum. These always have a mechanical advantage less than 1. They decrease the force exerted with a gain to the distance.

Answer 5

1) In second-class levers, the effort arm is always longer than the load

arm. In third-class levers, the efform arm is always shorter than the load arm.

2) In second class levers, the distance traveled is always greater than the load distance traveled. In third-class levers the distanced traveled is always shorter than the load distance traveled.

3) In second-class levers, the effort force is always less than the load force. In third-class levers, the effort force is always greater than the load force.
A Second Class lever has the load in the middle, between the effort and

the fulcrum, so its Mechanical Advantage is always greater than ' 1 '.

A Third Class lever has the effort in the middle, between the load and

the fulcrum, so its Mechanical Advantage is always less than ' 1 '.

Answer 6

The key difference between the three classes of levers is the relative positions of the effort, load, and fulcrum. In a first-class lever, the fulcrum is between the effort and load. In a second-class lever, the load is between the fulcrum and effort. In a third-class lever, the effort is between the fulcrum and load.