Question 15
Because of climate change, many cities are pushing for alternative modes of transportation. Instead of busses and cars which contribute to greenhouse gasses, many choose to go to work or school on bicycles. For this, urban areas should have bicycle lanes for the safety of bicycle users.
A bicycle contains what kind of simple machine?


Original choices:
A. inclined plane
B. pulley
C. wheel and axel
D. lever
E. wedge
Editorial review: explain whether the wording supports one unique answer and state any necessary conditions.
A bicycle contains what kind of simple machine?


Original choices:
A. inclined plane
B. pulley
C. wheel and axel
D. lever
E. wedge
Editorial review: explain whether the wording supports one unique answer and state any necessary conditions.