Practice Quiz

ACT Science Exam Prep - Question List

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21. A student touches a metal sink with her finger and notices that her finger feels cold. Which of the following statements explains this observation?
  1. Heat energy flows from the student’s finger to the metal sink.
  2. Heat energy flows from the metal sink to the student’s finger.
  3. The student’s finger was originally at the same temperature as the sink.
  4. The student’s finger was originally at a lower temperature than the sink.
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22. In an electromagnetic wave, an electric field exists perpendicular to a magnetic field, and both fields are perpendicular to the direction of travel of the wave. These characteristics indicate that an electromagnetic wave is which of the following wave types?
  1. Gravitational
  2. Longitudinal
  3. Mechanical
  4. Transverse
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23. If heat is added to a liquid, which of the following occurs?
  1. The friction in the liquid increases.
  2. The size of the liquid molecules expands.
  3. The potential energy of the liquid changes.
  4. The molecular motion in the liquid increases.
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24. What metabolic pathway converts glucose into pyruvate?
  1. Hydrolysis
  2. Glucogenesis
  3. Glycolysis
  4. Glycogenesis
  5. Glycogenolysis
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25. A species undergoes alpha emission to form 234Fr. What is this species?
  1. 236Ra
  2. 236Rn
  3. 234Rn
  4. 238Ac
  5. 236Ac
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