Daily Practice Questions

6 questions across multiple subjects, with detailed explanations and study tips.

📝 Questions

📊 SAT Math Medium
Which choice completes the text with the most logical transition? In the past few years, more than one horribly botched painting has made the news when it was delivered back to the owner looking nothing like the original. ___________ the art restorer working on the painting is not both topnotch and very well trained in artistic techniques from the time-period of the piece, the results of a restoration attempt can be disastrous.
  1. A. However,
  2. B. In addition,
  3. C. For instance, ✓
  4. D. Surprisingly,
Explanation: The sentence following the blank provides a specific example of a cause (a poorly trained restorer) that leads to the general problem mentioned in the first sentence (botched paintings). Therefore, "For instance" is the correct transition because it signals that an illustration or specific case is about to be presented. The other options are incorrect: "However" and "Surprisingly" imply a contrast that does not exist here, while "In addition" suggests another general point rather than a concrete example.
💻 AP Computer Science A Easy
The following code fragment does a sequential search to determine whether a given integer, value , is stored in an array a[0] … a[n-1] .
  1. A. value != a[i]
  2. B. i < n && value == a[i]
  3. C. value != a[i] && i < n
  4. D. i < n && value != a[i] ✓
  5. E. i < n || value != a[i]
Explanation: Choice B doesn’t make sense: The loop will be exited as soon as a value is found that does not equal a[i] . Eliminate choice A because, if value is not in the array, a[i] will eventually go out of bounds. You need the i < n part of the boolean expression to avoid this. The test i < n , however, must precede value != a[i] so that if i < n fails, the expression will be evaluated as false, the test will be short-circuited, and an out-of-range error will be avoided. Choice C does not avoid this error. Choice E is wrong because both parts of the expression must be true in order to continue the search.
📖 SAT Reading & Writing Hard
Which choice completes the text so that it conforms to the conventions of Standard English? We hear about water every day. More than 70% of ___________ surface is covered with water. Water is a requirement for terrestrial life. Water makes up most of our bodies.
  1. A. remarks: it may
  2. B. remarks; it may
  3. C. remarks, it may ✓
  4. D. remarks it may
Explanation: The phrase "it may" is an independent clause that follows the introductory dependent clause "We hear about water every day," so they must be separated by a comma to avoid a run-on sentence. Choice (C) correctly places this comma after "remarks" to join the two complete thoughts, whereas choices without a comma create a grammatical error known as a fused sentence or run-on.
📝 ACT Prep Medium
Next, my boss was furious that I was late.
  1. A. NO CHANGE
  2. B. My ✓
  3. C. Then, my
  4. D. Next my
Explanation: The changes in the answer choices identify transitions as the topic, possibly with commas as well. Use POE. The words then and next mean the same thing when used in this context. If both could be right, both must be wrong. Eliminate (A) and (C). Next should have a comma after it because it's an introductory idea, so eliminate (D) also. The correct answer is (B) because you do not need a transition word here.
🧬 AP Biology Medium
Which of the following is NOT a component of the cell membrane?
  1. A. phospholipids
  2. B. cellulose ✓
  3. C. proteins
  4. D. glycolipids
Explanation: Cellulose is a structural polysaccharide found in plant cell walls, not within the cell membrane itself. The cell membrane is primarily composed of a phospholipid bilayer embedded with proteins and glycolipids to facilitate transport and signaling. Therefore, cellulose is the only option listed that does not belong to the cellular membrane structure.
⚛️ AP Physics C Hard
The restoring force that acts on a mass is shown. For small amplitudes, the mass moves in simple harmonic motion with a period T . Which of the following is true of oscillations with larger amplitudes?
  1. A. The motion is SHM with a period of T .
  2. B. The motion is SHM with a period smaller than T .
  3. C. The motion is SHM with a period larger than T .
  4. D. The motion is no longer SHM, and its period is smaller than T . ✓
  5. E. The motion is no longer SHM, and its period is larger than T .
Explanation: The graph shows a restoring force that increases non-linearly with displacement (slope steepens), meaning the force is not proportional to position ($F \neq -kx$); therefore, the motion ceases to be simple harmonic motion (SHM). Because the slope of the force-displacement curve increases as amplitude grows, the effective spring constant $k$ becomes larger for these oscillations. Since the period of a harmonic oscillator is inversely proportional to the square root of $k$ ($T \propto 1/\sqrt{k}$), this increase in effective stiffness results in a period smaller than $T$.

💡 Study Tips

🎯 Use process of elimination on science questions

On AP and standardized science sections, you can often eliminate choices by checking units, order of magnitude, or whether the answer makes physical sense — even before doing the full calculation.

📖 Space out your study sessions

Studying the same topic across multiple shorter sessions over several days leads to stronger long-term retention than cramming everything into one marathon session. Try 25-minute focused blocks with 5-minute breaks.

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