TASK DEFINITION: Given a scientific passage and an answer, generate a question for the given answer.
PROBLEM: Passage: Figure 2.43 Positions and velocities of a metal ball released from rest when air resistance is negligible. Velocity is seen to increase linearly with time while displacement increases with time squared. Acceleration is a constant and is equal to gravitational acceleration. Answer: acceleration

SOLUTION: If a ball is released from rest when air resistance is negligible, velocity is seen to increase linearly, while what related property is a constant?

PROBLEM: Passage: Sources of voltage include electric generators and cells. Electric generators change kinetic energy to electrical energy. Chemical cells change chemical energy to electrical energy, and solar cells change solar energy to electrical energy. Answer: electrical

SOLUTION: Electric generators change kinetic energy to what type of energy?

PROBLEM: Passage: The average human body contains 5,830 g of blood. What mass of arsenic is present in the body if the amount in blood is 0.55 ppm?. Answer: blood

SOLUTION:
The average human body contains 5,830 g of what?