Question

In a class 1 lever...

The fulcrum is located between the effort force and load force

The load force is located between the fulcrum and the effort force

The effort force is located between the fulcrum and the load force

All of the above

In a class 2 lever....

The fulcrum is located between the effort force and load force

The load force is located between the fulcrum and the effort force

The effort force is located between the fulcrum and the load force

All of the above

Which equation is NOT correct

Efficiency= Work in/Work out

Work in= Effort force * Effort Distance

IMA= Effort distance/ Load distance

Work out= Load force* Load distance

In a first class lever what is the effort force of a 2-meter long lever with a fulcrum at 1 meter and a 20 Newton weight at one end?

10 N

20 N

5 N

None of the above

In a first class lever what is the mechanical advantage of a 2-meter long lever with a fulcrum at 1 meter and a 20 Newton weight at one end

MA= .5

MA= 1

MA= 0

All of the above

What is true about the torques around a fulcrum?

The sum of the torques is always positive

The sum of the torques is always negative

The sum of the torques is indeterminate

The sum of the torques is zero

Answer ALL questions please

Answer 1