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ACT Science — Data Representation — Drill 5

Drill 5 · Science · Data Representation

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About This Drill

ACT Science — Data Representation — Drill 5 is a Science practice drill covering Data Representation. It contains 5 original questions created by Brian Stewart, a Barron's test prep author with over 20 years of tutoring experience.

ACT Data Representation questions require interpreting scientific diagrams accurately. This drill uses a Hertzsprung-Russell diagram showing stellar classification by temperature and luminosity, asking you to identify stellar types, compare properties, and classify a newly described star.

Questions in This Drill

  1. According to Figure 1, which of the following stars has the highest surface temperature?
  2. Based on Figure 1, Arcturus and Aldebaran are both classified as Red Giants. Compared to the Sun, both stars are:
  3. According to Figure 1, which of the following stars is a White Dwarf?
  4. Based on Figure 1, which of the following best describes the general trend of Main Sequence stars?
  5. A newly discovered star has a surface temperature of approximately 4,000 K and a luminosity of approximately 10² L☉. Based on Figure 1, this star would most likely be classified as: