BMST Cheat Sheet 2026

The 30 highest-yield BMST facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. Which of the following is an example of an ionic compound? → NaCl
2. A right triangle has legs of 6 ft and 8 ft. What is the area of the triangle? → 24 sq ft
3. Solve for x: |2x − 5| > 9 → x 7
4. A cross between two plants with purple flowers produces offspring in a ratio of 2 purple : 1 red : 1 white. Which inheritance pattern best explains this result? → Two alleles showing complementary gene interaction
5. A rectangular swimming pool is 25 m long, 10 m wide, and 2 m deep. How many cubic meters of water does it hold? → 500 m³
6. A survey of 150 people found 90 own a car, 60 own a bicycle, and 30 own both. How many own neither? → 30
7. A cylindrical can has a diameter of 10 cm and a height of 15 cm. What is the lateral (side) surface area? (Use π ≈ 3.14) → 471 square cm
8. What is 0.75 expressed as a fraction in simplest form? → 3/4
9. What is the law of conservation of mass as applied to chemical reactions? → The total mass of reactants equals the total mass of products
10. A hemisphere (half sphere) has a radius of 5 cm. What is its volume? (Use π ≈ 3.14) → 261.7 cm³
11. What term describes the slow, large-scale movement of Earth's lithospheric plates over geological time? → Plate tectonics
12. Which organelle is responsible for producing ATP through cellular respiration? → Mitochondria
13. What does the amplitude of a wave represent? → The maximum displacement from the rest position
14. What is the circumference of a circle with a diameter of 14 inches? (Use π ≈ 3.14) → 43.96 inches
15. When two waves interfere destructively, the resulting amplitude is: → Reduced or zero
16. A recipe calls for 2½ cups of flour for 24 cookies. How many cups are needed to make 60 cookies? → 6¼ cups
17. A worker earns $720 in 6 days. How much will the worker earn in 9 days at the same rate? → $1,080
18. A bag contains 3 red, 5 blue, and 2 green marbles. What is the probability of drawing a blue marble? → 1/2
19. If a net force of 60 N acts on a 12 kg object, what is the object's acceleration? → 5 m/s²
20. A recipe uses flour and sugar in a ratio of 4:1. If you need 20 cups of flour, how many cups of sugar do you need? → 5 cups
21. If log₂(x) + log₂(x − 6) = 4, what is the value of x? → 8
22. What is the net force on an object moving at constant velocity? → Zero
23. A resistor network consists of three resistors in parallel: R1 = 6 Ω, R2 = 12 Ω, and R3 = 4 Ω. What is the total equivalent resistance of the network? → 2 Ω
24. What is the primary source of energy that drives the water cycle? → Solar energy
25. Which model of the atom describes electrons as existing in a cloud of probability? → Quantum mechanical model
26. What is the unit of frequency? → Hertz (Hz)
27. Which type of rock is formed when magma cools and solidifies below Earth's surface? → Intrusive igneous
28. Which best describes the action-reaction pair when a bat hits a baseball? → The bat exerts force on the ball; the ball exerts an equal and opposite force on the bat
29. What subatomic particle has a negative charge and orbits the nucleus? → Electron
30. An electric heater draws 8 A from a 240 V supply. Over 45 minutes of operation, how much electrical energy does it consume in kilowatt-hours? → 1.44 kWh