The majority of schools and universities base their admissions decisions on the results of the ACT college entrance exam. A multiple-choice test is given by ACT, Inc. on paper and pencil. In the spring of their junior year or the autumn of their senior year, high school students take the ACT and SAT. Therefore, it's important to provide enough time to repeat the exam in order to raise your score before submitting an application to college.
Here are some examples of free ACT sample questions, that will give you an idea of the practise sheets:
Maths Questions with Answers :
Q1. If f (x) = x3 – kx2 + 2x and f (2) = 6. What is the value of k?
Options:
3/2
5/2
- 3
- 6
15
Solution-
f (x) = x³−kx² + 2x
=>f(2) = 8 − 4k + 4
=>12 − 4k = 6
=>k = 3/2
Hence, the correct option for this sample ACT Math question is a: 3/2.
Science Questions with Answers :
Q1. A student who learns how to disperse gases has received the following formula:
Subsequent tests were performed to test his formula and to study the factors that affect the rate at which gases are distributed.
Experiment #1:
When vapors of hydrogen chloride (HCl) and ammonia (NH3) combine, solid ammonium chloride (NH4Cl) is formed:
HCl(G)+NH3(g) → NH4Cl(s)
He inserted the HCl solution into one part of the glass tube (1 cm wide) and the NH3 solution into the other, separating the swabs 10 cm apart. As the NH4Cl ring develops, the distances traveled by each vapor can be calculated (see Figure 1). Reactions are carried out at various temperatures. In each test, the time it took for the ring to develop and its distance from the HCl swab were noted.
Table 1
Trial | Temperature (°C) | Time (sec) | Distance of ring from HCl swab (cm) |
1 | 20 | 33 | 4.0 |
2 | 30 | 30 | 4.1 |
3 | 40 | 26 | 4.1 |
4 | 50 | 23 | 4.0 |
The student projected that the distance between the ring and the HCl swab would be 4.06 cm using the formula; thus, he determined that his formula was right.
Experiment # 2
The first experiment was repeated, except that the temperature was maintained at 20°C and the tube diameter was varied for each trial.
Table 2
Trial | Tube diameter (cm) | Time (sec) | Distance of ring from HCl swab (cm) |
5 | 1.0 | 33 | 4.0 |
6 | 1.2 | 33 | 4.0 |
7 | 1.4 | 33 | 4.1 |
8 | 1.6 | 33 | 4.0 |
Experiment # 3
Experiment 2 was repeated, but the tube diameter was kept constant at 1 cm, and longer tubes were used to vary the distance between the swabs.
Table 3
Trial | Distance between swabs (cm) | Time (sec) | Range from HCl swab (cm) |
9 | 10 | 33 | 4.0 |
10 | 20 | 67 | 8.1 |
11 | 30 | 101 | 12.2 |
12 | 40 | 133 | 16.2 |
A. Which option best describes the difference between the methods used in Experiments 1 and 2? In Experiment 1:
A. The temperature varied; in Experiment 2, the diameter of the tube varied.
B. Tube diameters varied; in Experiment 2, the temperature varied.
C. The distance between the swabs varied; in Experiment 2, the temperature varied.
D. The temperature varied; in Experiment 2, the distance between the swabs varied.
The correct answer to this sample ACT science question is A – In Exp. 1, the temperature varied; in
Exp. 2, the diameter of the tube varied.
B. In Experiments 1, 2, and 3, which trials were completed using identical sets of conditions?
A. Trials 2, 3, and 4
B. Trials 1, 5, and 9
C. Trials 4, 7, and 9
D. Trials 10, 11, and 12
The correct answer for this sample ACT science question is B- Trials 1, 5, and 9.
C. The student concluded that NH3 diffuses faster than HCl. Do the results of Experiments 1–3 support her conclusion?
A. No, the HCl fumes traveled further than NH3.
B. No, the NH3 fumes traveled further than HCl.
C. Yes, the HCl fumes traveled further than NH3.
D. Yes, the NH3 fumes traveled further than HCl.
The correct answer for this sample ACT science question is D- Yes, the NH3 vapors traveled further than HCl.
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