Math & Physics MCAT Practice Questions
743 free Math & Physics MCAT-style practice questions, covering topics like Kinematics & Dynamics, Work and Energy, Thermodynamics, Fluids, Electrostatics and Magnetism, Circuits, and more.
In a Bohr model of the hydrogen atom, what does the quantum number *n* represent?In the photoelectric effect, what is the purpose of the stopping potential?An electron is released in a uniform electric field. What is the direction of the force experienced by the electron?A positive charge is moved against the electric field direction. What happens to its electric potential energy?A researcher is investigating the relationship between caffeine consumption and reaction time. The null hypothesis states that there is no…A sound wave travels from air into water. If the speed of sound in water is approximately four times faster…A reversible heat engine operates between two reservoirs at temperatures 500 K and 300 K. If the engine absorbs 1000…In a nuclear reactor, control rods are used to:A researcher measures the weights (in pounds) of a sample of individuals: 150, 155, 160, 155, 158, 155. What is…A researcher conducts a study to explore the relationship between sleep duration and cognitive performance. The researcher finds a strong…If cos(alpha) = 0.6, what is the secant of the angle (alpha)?A U-shaped tube contains mercury on one side and water on the other. If the height of the mercury column…A thermometer is placed in a beaker of hot water and another thermometer is placed in a beaker of cold…A cylindrical conductor has a resistance of 10 ohms. If its length is doubled while its radius remains the same,…A cylindrical container filled with water has a small hole at the bottom. If another identical container filled with a…In a clinical trial, the response to a drug is categorized as "improved," "no change," or "worsened." What statistical test…A sample of gas undergoes an isochoric process, during which its internal energy increases by 500 J. If the work…A research study is conducted to investigate the effects of a new drug on cancer patients. The study involves randomly…If a nucleus has a higher binding energy per nucleon than another nucleus, what can be inferred about its stability?A researcher is investigating the genetic basis of a rare disorder. The study involves obtaining genetic samples from affected individuals…If a charged particle moves along the direction of an electric field, what happens to its electric potential energy?A researcher is analyzing the distribution of IQ scores in a population. If the mean IQ is 100 with a…The reaction times (in milliseconds) of a group of participants are recorded: 300, 320, 310, 330, 340, 290. What is…Which of the following statements is true regarding the emission of light by electrons in an atom?What is the electric potential energy of a system of two charges, +1 μC and -2 μC, when they are…Two point charges,Q1 and Q2, are placed 2 meters apart. If Q1 is positive and Q2 is negative, what is…A concave mirror has a focal length of 20 cm. An object is placed 30 cm in front of the…A 0.3 kg object is pushed horizontally across a surface with a constant force of 15 N for a distance…Two identical resistors, each with resistance R, are connected in series. If the total resistance in the circuit is 4R,…Two point charges, $+Q $and $−2Q$, are separated by a distance $d$. If the distance is tripled, what happens to…Three identical resistors (R) are connected in a series circuit with a battery that has a voltage of V. What…A sample of gas occupies a volume of 2 liters at a pressure of 3 atm. If the volume is…A thin horizontal tube with a constant diameter of 1 cm is carrying an incompressible liquid at a steady flow…Which of the following sampling methods is most likely to result in a representative sample of the population?In a photoelectric experiment, if the frequency of the incident light is below the threshold frequency, what is the result?Which of the following statements about nuclear reactions is false?A dataset has a median of 20 and a mode of 15. Which of the following statements is most likely…A 2000 kg car is moving with a velocity of 15 m/s. If a force of 5000 N is applied…A research team is investigating the impact of a new drug on a specific disease. The team recruits participants from…The weights of a sample of mice are recorded as follows (in grams): 20, 22, 18, 21, 19, 20. What…In a unit circle, if a point is located at (cos(theta), sin(theta)), what are the coordinates of a point on…A point charge Q = +4.0 μC is placed at the origin. What is the electric potential at a point…A lever is used to lift a load with an input force of 30 N. If the load is lifted…A machine does 500 J of work in 10 seconds. What is the power output of the machine?Two forces, 12 N and 15 N, act on an object at angles of 30° and 45° respectively with the…Which of the following correctly describes the concept of mass defect in nuclear physics?When a conductor becomes hotter, how does its resistance typically change?A force of 15 N is applied horizontally to a 5 kg object on a frictionless surface. What is the…In a certain population, 20% of individuals have a genetic trait associated with a particular disease. If two individuals from…A 12 V battery is connected to a resistor, and a current of 2 A flows through the circuit. What…