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ACT Science Practice Test 1 (40 questions) with Answers and Explanation

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About this Exam

Prepare with the ACT Science Practice Test 1 (40 questions) with Answers and Explanation practice quiz. This question bank includes 40 questions covering figure, table, sodium, supported, and solar. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

Sample Questions

Question 1
Which of the three objects may be traveling solely under the influence of gravity for the entire period shown?
only object 3
153 cm
174 cm
+1
Explanation:
Correct answer: only object 3
Question 2
For the time period shown, which of the three objects is/are traveling solely under the influence of gravity for at least part of the 45-second period?
0.2184 W/m 2
objects 1, 2, and 3
objects 1 and 3
0.0730 grams
Explanation:
Correct answer: objects 1, 2, and 3
Question 3
For second 5 through second 25, which of the objects is/are moving with constant acceleration?
objects 1, 2, and 3
1.5 E -4
objects 1 and 3
0.0730 grams
Explanation:
Correct answer: objects 1 and 3
Question 4
Which answer best describes the motion of object 1?
two
hydrogen
visible light
See solution for the supported answer
Explanation:
It travels downward from second 0 for 9.8 seconds. Then it travels upward with increasing speed until second 30. It continues to move upward at a continually decreasing speed until second 45.
Question 5
From second 15 to second 35 the velocity of object 2 undergoes only very small changes. What is the best explanation for this?
An upward force adequate to cause an acceleration of 10 m/s2 was applied.
objects 1, 2, and 3
The adults of country B have been above the global typical height since at least 1750, and this difference has increased significantly throughout the period from 1750 to 2010.
(c × v) × 36.5 g, where c is the concentration of the titrant (0.2 moles/liter) and v is the volume in liters of the titrant used to reach pH 7.0.
Explanation:
Correct answer: An upward force adequate to cause an acceleration of 10 m/s2 was applied.

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Additional Information

ACT Science Practice Test 1 (40 questions) with Answers and Explanation

This practice set contains 40 questions from the matching question bank and focuses on figure, table, sodium, supported, and solar. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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Frequently Asked Questions

This quiz contains a total of 40 practice questions carefully selected to test your knowledge on this subject.
Yes, you will have exactly 0 minutes to complete the exam. A countdown timer will be visible once you start.
Yes, you can retake this practice test as many times as you need. The questions and options may be randomized on subsequent attempts to ensure comprehensive learning.

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