VT Daily Trivia — High School Special: September 17, 2025

VT Daily Trivia

1. 1) Solve for x: 3x + 7 = 25

   x = 5

   Wrong — 3·5 + 7 = 22.

   x = 6

   Correct.

   25 − 7 = 18; 18 ÷ 3 = 6.

   x = 7

   Wrong — 3·7 + 7 = 28.

   x = 8

   Wrong — 3·8 + 7 = 31.
2. 2) What is the slope of the line through (2, 3) and (5, 15)?

   2

   Wrong — check rise/run.

   4

   Correct.

   Slope = (15−3)/(5−2) = 12/3 = 4.

   6

   Wrong — that multiplies instead of divides.

   1/4

   Wrong — that’s the reciprocal.
3. 3) Which organelle is the primary site of ATP production in eukaryotic cells?

   Ribosome

   Wrong — ribosomes make proteins.

   Mitochondrion

   Correct.

   Oxidative phosphorylation across the inner mitochondrial membrane generates most ATP.

   Golgi apparatus

   Wrong — Golgi modifies and ships molecules.

   Lysosome

   Wrong — lysosomes digest cellular waste.
4. 4) Which molecule delivers amino acids to the ribosome during translation?

   mRNA

   Wrong — mRNA carries codons.

   tRNA

   Correct.

   tRNA matches codons with its anticodon and brings the corresponding amino acid.

   rRNA

   Wrong — rRNA forms the ribosome.

   DNA

   Wrong — DNA stores genetic information.
5. 5) In any collision (elastic or inelastic) within an isolated system, which quantity is always conserved?

   Momentum

   Correct.

   With no external net force, total momentum stays constant even if kinetic energy becomes heat/sound.

   Kinetic energy

   Wrong — only in perfectly elastic collisions.

   Velocity

   Wrong — velocities usually change.

   Temperature

   Wrong — temperature can rise.
6. 6) Neglecting air resistance, which two launch angles give the same projectile range at the same speed?

   20° and 30°

   Wrong — not complementary.

   30° and 60°

   Correct.

   Complementary angles (θ and 90°−θ) yield equal ranges; 30° pairs with 60°.

   15° and 60°

   Wrong — 15° pairs with 75°.

   45° and 75°

   Wrong — 45° pairs with 45°.
7. 7) What is the pH of a 0.001 M (10⁻³ M) HCl solution at 25 °C?

   1

   Wrong — that’s 10⁻¹ M.

   2

   Wrong — that’s 10⁻² M.

   3

   Correct.

   For strong acids, [H⁺] ≈ 10⁻³ M ⇒ pH = 3.

   4

   Wrong — that’s 10⁻⁴ M.
8. 8) What type of bond forms between sodium (Na) and chlorine (Cl) in table salt?

   Ionic bond

   Correct.

   Na donates an electron to Cl, forming Na⁺ and Cl⁻; their attraction creates an ionic lattice.

   Covalent bond

   Wrong — covalent bonds share electrons.

   Hydrogen bond

   Wrong — that’s a weak intermolecular attraction.

   Metallic bond

   Wrong — metallic bonding is among metal atoms.
9. 9) Which U.N. body can adopt binding resolutions on international peace and security?

   General Assembly

   Wrong — GA resolutions are usually nonbinding.

   Security Council

   Correct.

   Under the U.N. Charter, Security Council decisions on peace and security bind member states.

   ECOSOC

   Wrong — it handles economic and social issues.

   Secretariat

   Wrong — it implements, not legislates.
10. 10) NATO’s Article 5 commits members to which principle?

    An attack on one is an attack on all

    Correct.

    It’s collective defense: allies respond together if any member is attacked.

    Trade-tariff alignment

    Wrong — NATO is a defense alliance.

    Open-border travel

    Wrong — that’s Schengen, not NATO.

    Common currency policy

    Wrong — unrelated to NATO’s charter.