Question

Check my answer!
What principal of a lever is being used in this photograph?

A. A bottle opener is a type of lever that reduces the input force required by reducing the distance over which the force is applied.
B. A bottle opener is a lever in which a smaller input force acts over a larger distance so that a larger output force can act over a smaller distance.
C. A bottle opener is a type of lever that enables the same work to be done over a shorter distance with less force.
D. A bottle opener is a type of lever that magnifies the output force required.

My answer: A. or C.

Answer 1

Photograph: http://static.k12.com/calms_media/media/1473000_1473500/1473258/2/3a30ef557b66c434cfd71485b66f17225db08229/SHU_58802875_bottle_can_opener_E.jpg

Answer 2

I am going to go with C.

Answer 3

hmm

Answer 4

maybe B