Practice test

ACT Practice 2

Practice 2 for ACT: 25 questions, explained answers, and a review routine.

These questions are for study practice only and are not official exam questions.

Question 1

1

A car travels 90 miles at 45 mph and then 90 miles at 60 mph. What is its average speed for the whole trip, to the nearest tenth?

Question 2

2

Original passage: The radio host allowed long pauses after difficult questions. Guests often used the silence to add details they had initially left out. What function did the pauses serve?

Question 3

3

Model A predicts a mineral dissolves faster in warm water than cold water. Model B predicts equal rates. Which observation would favor A over B?

Question 4

4

A paragraph first describes collecting samples, then analyzing them, and finally reporting results. Where should a sentence about labeling each sample immediately after collection go?

Question 5

5

Set A = {1, 2, 3, 4} and set B = {3, 4, 5}. How many elements are in A union B?

Question 6

6

Original passage: The carpenter called the uneven shelf a useful mistake: it revealed that the workshop floor sloped slightly. What does useful mistake imply?

Question 7

7

A scientist randomly assigns plants to treatment groups. What is the main purpose?

Question 8

8

Which sentence maintains a consistent point of view?

Question 9

9

A cylinder has radius 3 and height 8. What is its volume?

Question 10

10

Original passage: The committee postponed its decision until the engineer supplied a cost estimate. Members had already agreed that repairs were necessary. What remained unresolved?

Question 11

11

A student wants to compare two insulating materials. Which setup best isolates material type?

Question 12

12

Choose the correct completion: The storm had passed before the workers ___ outside.

Question 13

13

Two similar triangles have corresponding side lengths 4 and 10. If another side of the smaller triangle is 6, what is its corresponding side in the larger triangle?

Question 14

14

Original passage: The orchard's owner planted several varieties that ripened at different times. This spread the harvest across weeks and reduced the number of workers needed on any single day. Why were different varieties selected?

Question 15

15

A table lists pH 4, 7, and 10 for solutions A, B, and C. Which is most acidic?

Question 16

16

Which sentence has a clear and correctly placed modifying phrase?

Question 17

17

A store sells 3 identical pens and 2 identical notebooks for $13, and 1 pen and 2 notebooks for $9. What is one notebook's price?

Question 18

18

Original passage: The stone wall followed the hill's contours rather than cutting a straight line across them. The mason said a rigid plan would have ignored the land. What does rigid most nearly mean here?

Question 19

19

A scientist tests a fertilizer on ten plants but gives the treated plants more water than untreated plants. What is the main design problem?

Question 20

20

Choose the most precise revision of The scientist looked at the sample with a microscope.

Question 21

21

What is the slope of a line parallel to 4x - 2y = 8?

Question 22

22

Original passage: After the town added a weekend bus, Saturday museum visits increased. The museum also opened a popular exhibit that month. Why should the bus's effect be interpreted cautiously?

Question 23

23

A reaction releases gas. Researchers measure gas volume every minute. Which quantity is the dependent variable?

Question 24

24

Which sentence uses a semicolon correctly?

Question 25

25

A data set has mean 14. Adding 3 to every value produces what new mean?

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