PAX: Science Practice Exam Graded A+ 2024

PAX: Science Practice Exam Graded A+ 2024 synthesis reaction a reaction in which two or more substances combine to form a new compound Benzene Consists of a ring of six carbon atoms with alternating single and double carbon-carbon bonds. Which of these organisms use nitrogen directly from the air? Blue-green algae What instrument is used to measure current flowing through a circuit? Ammeter a quantity that has both magnitude and direction is called a(n) vector What part of the brain controls memory loss? cerebral cortex Coulomb's Law electric force between charged objects depends on the distance between the objects and the magnitude of the charges. Quantum physics proposes that light is composed of quanta called photons the amplitude of a sound wave is closely related to its wavelength When three resistors of 10.0 ohms each are placed in series, the total resistance is 30.0 ohms. Which of these factors is a variable in Cicero and Wozniak's research? liquid diet of 6% alcohol Which of these units is associated with magnitude, but not direction? time (??) 1 kilogram (kg) of solid X at 10°C and 1 kg of solid Y at 10°C each absorb 5 joules of heat energy. The final temperatures of X and Y are 15°C and 20°C, respectively. Compared to X, Y must have a lower specific heat A drop of dilute ammonium hydroxide (NH4OH) is placed on one side of a slide containing a large number of swimming paramecium. Under this condition, which of these behaviors of the paramecia will be observed? they will eventually all swim away from the ammonium hydroxide A student focuses sunlight to a point with a thin converging (convex) lens. Which of these direct measurements can the student make as a result of this experiment? the approximate focal length of the lens Iodized salt is used to prevent a human condition known as a goiter The bending of a wave around an obstacle is known as diffraction Which of these hydrocarbons is a member of the benzene family? toluene Which of these pairs of units measures the same quantity? watt and calorie Which part of the human central nervous system controls voluntary movements? cerebellum Within which of these structures of the female reproductive tract is the human egg fertilized? fallopian tube You cut your finger rather deeply while slicing an apple. Which of these actions should you take first? wash the wound continuously with cold running water in varieties of matter, the term heterogeneous may be applied to mixtures, but not elements or