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The TExES 237 exam has 100 questions and runs 4 hours 45 minutes.
These 10 free TExES 237 questions are organized by exam domain, so you can see how each part of the TExES Physical Science 6-12 (237) blueprint is tested. Reveal the answer and explanation under each question.
A student is receiving an electric shock from a damaged, mains-powered hot plate and cannot let go. The teacher can safely reach a labeled emergency cutoff that disconnects power to the laboratory outlets without approaching the student or the apparatus. Another adult is calling emergency services. What is the teacher’s immediate priority?
Correct answer: A - Operate the emergency cutoff before touching the student.
Students add successive measured volumes of one liquid to a graduated cylinder, weighing the cylinder plus liquid after each addition. Their graph of total mass versus liquid volume is linear with a positive vertical intercept. They repeat the measurements with a heavier cylinder, using the same liquid at the same temperature. Both cylinders’ volume markings and the balance are accurate. How should the second best-fit line differ?
Correct answer: D - The same slope and a higher vertical intercept.
A box rests on a scale in an elevator that is moving downward but slowing as it approaches a floor. The box remains in contact with the scale. Compared with the box’s gravitational weight, how large is the upward force exerted by the scale during this interval?
Correct answer: B - Larger, because the box’s acceleration points upward.
An initially uncharged capacitor and a resistor are connected in series to a constant-voltage DC source. The current starts at a nonzero value and gradually approaches zero, while the capacitor voltage approaches the source voltage. Assume ideal components. How should the final electrical state be interpreted?
Correct answer: B - Energy remains in the capacitor’s electric field even though the resistor’s voltage drop approaches zero.
A 2.00 kg cart moving at 1.20 m/s strikes an initially uncompressed, wall-mounted spring bumper on a level, frictionless track. The spring constant is 2.00 × 10² N/m, and the bumper’s permitted compression is 0.150 m. Neglect damping and the spring’s mass. Which assessment correctly predicts the maximum compression and whether the bumper stays within its limit?
Correct answer: C - 0.120 m; within the permitted compression.
A neutral iron atom has the ground-state electron configuration [Ar]3d⁶4s². The ground-state configuration of an isolated Fe³⁺ ion is:
Correct answer: D - [Ar]3d⁵
Consider the structures of ethanol, CH₃CH₂OH, and dimethyl ether, CH₃OCH₃. Each oxygen atom has two lone pairs. Which prediction about conventional O-H···O hydrogen bonding follows from these structures?
Correct answer: A - Only ethanol can donate an O-H hydrogen bond; both substances can accept one from water.
For a sealed sample of a real gas, the amount of gas, volume, and temperature are independently verified. A calibrated pressure transducer repeatedly measures a pressure below the ideal-gas prediction under those same conditions. No condensation occurs. Which molecular effect best explains the direction of this discrepancy?
Correct answer: D - Attractions between molecules reduce the momentum delivered to the container walls.
A student mixes 50.0 mL of 0.200 M CaCl₂ with 25.0 mL of 0.200 M Na₂CO₃. The reaction is CaCl₂(aq) + Na₂CO₃(aq) → CaCO₃(s) + 2NaCl(aq). After collection, washing, and brief air-drying, the recovered solid weighs 0.620 g. Use a CaCO₃ molar mass of 100.0 g/mol and neglect its solubility when calculating the theoretical yield. Which interpretation is supported by the stoichiometry?
Correct answer: B - The theoretical yield is 0.500 g; retained liquid can account for the high apparent yield.
Seventh graders claim that a metal block has a lower temperature than a wooden block because the metal feels colder. Both blocks have remained in the same room overnight. The teacher wants students to test the temperature claim, not simply memorize that touch can be misleading. Which lesson sequence most directly accomplishes this?
Correct answer: C - Elicit predictions, measure both blocks with contact probes, then use the results to reconsider heat flow from the hand.
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