TASK DEFINITION: Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
PROBLEM: In machines that increase force, such as ramps and doorknobs and nutcrackers, output is greater is the relation between output and input force.

SOLUTION: In machines that increase force, such as ramps and doorknobs and nutcrackers, what is the relation between output and input force?

PROBLEM: When gas particles heat up, pressure increase.

SOLUTION: Does pressure increase or decrease when gas particles heat up?

PROBLEM: Biochemical kind of tests may detect substances associated with particular disorders.

SOLUTION:
What kind of tests may detect substances associated with particular disorders?