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AP Physics - Problem Drill 01: Introduction to AP Physics B Question No. 1 of 10 Instructions: (1) Read the problem statement and answer choices carefully, (2) Work the problems on paper as needed, (3) Pick the answer, and (4) Review the core concept tutorial as needed. Which of the following statements about Newton’s Laws is correct? Question #01 A. The acceleration of an object is directly proportional to the net force. B. The acceleration of an object is directly proportional to the mass of the object. C. The acceleration of an object is proportional to the net mass. D. The acceleration of an object is not affected by the mass of an abject. E. Newton’s Third Law, states that for every force, there is a lesser and opposite force. A. Correct! The acceleration of an object is directly proportional to the net force. B. Incorrect! The acceleration of an object is directly proportional to the net force. Feedback on Each Answer Choice C. Incorrect! The acceleration of an object is directly proportional to the net force and inversely proportional to the mass. D. Incorrect! The acceleration of an object is directly proportional to the net force and inversely proportional to the mass. E. Incorrect! Newton’s Third Law: For every force, there is an equal and opposite force. Solution Newton’s First Law: Every object continues in a state of rest, or uniform motion in a straight line, unless it is acted upon by an outside force (inertia). Newton’s Second Law: The acceleration of an object is directly proportional to the net force and inversely proportional to the mass. Newton’s Third Law: For every force, there is an equal and opposite force. RapidLearningCenter.com Rapid Learning Inc. All Rights Reserved Question No. 2 of 10 Instructions: (1) Read the problem statement and answer choices carefully, (2) Work the problems on paper as needed, (3) Pick the answer, and (4) Review the core concept tutorial as needed. Which of the following statements about kinetic energy is true? Question #02 A. Kinetic Energy is the extra energy an object possesses because of its motion, measured in Joules. B. Kinetic Energy is the extra energy an object possesses because of its mass, measured in kg. C. The equation to calculate the kinetic energy of an object is Ek = 2mv2. D. The equation to calculate the kinetic energy of an object is Ek = 1/2mv. E. In the equation to calculate kinetic energy Ek is the kinetic energy, m is the mass of the body and v is the speed of light. A. Correct! Kinetic Energy – the extra energy an object possesses because of its motion, measured in Joules. B. Incorrect! Kinetic Energy – the extra energy an object possesses because of its motion, measured in Joules. Feedback on Each Answer Choice C. Incorrect! The equation to calculate the kinetic energy of an object is Ek = 1/2mv2. D. Incorrect! The equation to calculate the kinetic energy of an object is Ek = 1/2mv2. E. Incorrect! In the equation to calculate kinetic energy Ek is the kinetic energy, m is the mass of the body and v is the speed of the object. Kinetic Energy – the extra energy an object possesses because of its motion, measured in Joules. Solution Ek = 1/2mv2 where: Ek is the kinetic energy m is the mass of the body and v is the speed of the object RapidLearningCenter.com Rapid Learning Inc. All Rights Reserved Question No. 3 of 10 Instructions: (1) Read the problem statement and answer choices carefully, (2) Work the problems on paper as needed, (3) Pick the answer, and (4) Review the core concept tutorial as needed. Gauss’s law________. Question #03 A. Gauss’s law: relates the distribution of electric charge and the resulting electric field. B. Gauss’s law: relates the distribution of magnetism and the resulting magnetic field. C. The electric flux through an area is defined as the electric field multiplied by the area of the object. D. The electric flux through an area is defined as the change in electric field multiplied by the area of the object. E. There is no connection at all between the distribution of electric charge and the resulting electric field. A. Correct! Gauss’s law: relates the distribution of electric charge and the resulting electric field. B. Incorrect! Gauss’s law: relates the distribution of electric charge and the resulting electric field. Feedback on Each Answer Choice C. Incorrect! The electric flux through an area is defined as the electric field multiplied by the area perpendicular to the field. D. Incorrect! The electric flux through an area is defined as the electric field multiplied by the area perpendicular to the field. E. Incorrect! Gauss’s law: relates the distribution of electric charge and the resulting electric field. Solution Electrostatics is the study of stationary, or slowly moving, electric charges. In this study, Coulomb’s law is a mathematical description of the electric force between objects. Gauss’s law: relates the distribution of electric charge and the resulting electric field. The electric flux through an area is defined as the electric field multiplied by the area perpendicular to the field. RapidLearningCenter.com Rapid Learning Inc. All Rights Reserved Question No. 4 of 10 Instructions: (1) Read the problem statement and answer choices carefully, (2) Work the problems on paper as needed, (3) Pick the answer, and (4) Review the core concept tutorial as needed. Which of the following statements about fluid mechanics is true? Question #04 A. The study of fluid motion can only apply to fluids at rest or static. B. The study of fluid motion can only apply to dynamic motion. C. Buoyancy is the downward force that keeps objects afloat, the net upward force is equal to the weight of the object. D. Buoyancy is the upward force that keeps objects afloat, the net upward force is equal to the weight of water (fluid) displaced by the object. E. Fluid mechanics is the study of how fluids move, and ignores any forces that act on them. A. Incorrect! The study of fluid motion can be divided into fluids at rest or static and dynamic motion. B. Incorrect! The study of fluid motion can be divided into fluids at rest or static and dynamic motion. Feedback on Each Answer Choice C. Incorrect! Buoyancy is the upward force that keeps objects afloat, the net upward force is equal to the weight of water (fluid) displaced by the object. D. Correct! Buoyancy is the upward force that keeps objects afloat, the net upward force is equal to the weight of water (fluid) displaced by the object. E. Incorrect! Fluid mechanics is the study of how fluids (including liquids and gases) move and forces that act on them. Solution Fluid mechanics is the study of how fluids (including liquids and gases) move and forces that act on them. The study of fluid motion can be divided into fluids at rest or static and dynamic motion. Buoyancy is the upward force that keeps objects afloat, the net upward force is equal to the weight of water (fluid) displaced by the object. RapidLearningCenter.com Rapid Learning Inc. All Rights Reserved Question No. 5 of 10 Instructions: (1) Read the problem statement and answer choices carefully, (2) Work the problems on paper as needed, (3) Pick the answer, and (4) Review the core concept tutorial as needed. Which of the following statements about waves is true? Question #05 A. Waves can lead to reflection, refraction, interference and dispersion. B. In physics, waves only refer to sound waves, and ocean surface waves. C. A standing wave occurs when there is no reflection or interference. D. The standing wave occurs and moves forward because the medium is moving in the opposite direction as the wave. E. The standing wave occurs and remains in constant position because the medium is moving in the same direction as the wave. A. Correct! Waves can lead to reflection, refraction, interference and dispersion. B. Incorrect! Examples of waves include: sound waves, radio waves, ocean surface waves, and seismic waves in earthquakes. Feedback on Each Answer Choice C. Incorrect! A standing wave occurs when there is reflection and interference. D. Incorrect! The standing wave occurs and remains in constant position because the medium is moving in the opposite direction as the wave. E. Incorrect! The standing wave occurs and remains in constant position because the medium is moving in the opposite direction as the wave. Solution A wave is a periodic disturbance through which the sound or water wave travels. Waves can lead to reflection, refraction, interference and dispersion. Examples of waves include: sound waves, radio waves, ocean surface waves, and seismic waves in earthquakes. Wave propagation is the ways or directions the wave travels. A standing wave occurs when there is reflection and interference. The wave remains in constant position because the medium is moving in the opposite direction as the wave. RapidLearningCenter.com Rapid Learning Inc. All Rights Reserved Question No. 6 of 10 Instructions: (1) Read the problem statement and answer choices carefully, (2) Work the problems on paper as needed, (3) Pick the answer, and (4) Review the core concept tutorial as needed. Optics is _______. Question #06 A. The study of the behaviour and properties of gamma radiation is known as optics. B. The study of the behaviour and properties of light is known as optics. C. The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation, from a wavelength of 1 m to 1000 m. D. The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation, from a wavelength of 0.1 Å to 1000 μm. E. Within this spectrum is the visible light range from approximately 500 nm to 720 nm. A. Incorrect! The study of the behaviour and properties of light is known as optics. B. Correct! The study of the behaviour and properties of light is known as optics. Feedback on Each Answer Choice C. Incorrect! The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation, from a wavelength of 0.1 Å to 1000 m. D. Incorrect! The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation, from a wavelength of 0.1 Å to 1000 m. E. Incorrect! Within this spectrum is the visible light range from approximately 380 nm to 720 nm. Solution The study of the behaviour and properties of light is known as optics. Optic equipment includes: mirrors, lenses, telescopes, lasers and fiber optics. When light breaks into its component parts, it’s known as diffraction. The reflection of light can occur from glossy surfaces, such as a mirror, or diffuse from surfaces, such as glossy paint. The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation, from a wavelength of 0.1 Å to 1000 m. Within this spectrum is the visible light range from approximately 380 nm to 720 nm. RapidLearningCenter.com Rapid Learning Inc. All Rights Reserved Question No. 7 of 10 Instructions: (1) Read the problem statement and answer choices carefully, (2) Work the problems on paper as needed, (3) Pick the answer, and (4) Review the core concept tutorial as needed. Which of the following statements about atomic physics is true? Question #07 A. The study of atoms in nature and the electrons is known as Atomic Physics. B. The study of electrons and protons in nature is known as Atomic Physics. C. The photoelectric effect is the emission of electrons from matter (either metal or non-metal) in response to the absorption of electromagnetic radiation, such as light. D. The photoelectric effect is the emission of electrons from matter (either metal or non-metal) in response to the absorption of electrons during a fission reaction. E. Within multi-electron atoms, such as helium, all electrons must be at the same energy level and these can be described with an atomic energy level diagram. A. Incorrect! The study of atoms in isolated systems and the atomic nucleus is known as Atomic Physics. B. Incorrect! The study of atoms in isolated systems and the atomic nucleus is known as Atomic Physics. Feedback on Each Answer Choice C. Correct! The photoelectric effect is the emission of electrons from matter (either metal or non-metal) in response to the absorption of electromagnetic radiation, such as light. D. Incorrect! The photoelectric effect is the emission of electrons from matter (either metal or non-metal) in response to the absorption of electromagnetic radiation, such as light. E. Incorrect! Within multi-electron atoms, such as helium, there can be different energy levels for its electrons and these can be described with an atomic energy level diagram. Solution The study of atoms in isolated systems and the atomic nucleus is known as Atomic Physics. The photoelectric effect was discovered by Heinrich Hertz and later explained by Albert Einstein. The photoelectric effect is the emission of electrons from matter (either metal or non-metal) in response to the absorption of electromagnetic radiation, such as light. Within multi-electron atoms, such as helium, there can be different energy levels for its electrons and these can be described with an atomic energy level diagram. Electrons can be in a ground state or, under the right conditions, an excited state. RapidLearningCenter.com Rapid Learning Inc. All Rights Reserved Question No. 8 of 10 Instructions: (1) Read the problem statement and answer choices carefully, (2) Work the problems on paper as needed, (3) Pick the answer, and (4) Review the core concept tutorial as needed. Which is true about nuclear physics? Question #08 A. When two nuclei or nuclear particles collide, a nuclear reaction can never take place. B. When ten or more nuclear particles collide, a nuclear reaction can take place. C. In a nuclear reaction, massive amounts of new energy is created and the types of reactions include Fusion reactions, which can lead to a thermonuclear explosion, and Fission reactions. D. In a nuclear reaction, the total energy is conserved and the types of reactions include Fusion reactions, which can lead to a thermonuclear explosion, and Fission reactions. E. Mass-energy equivalence can be described with Einstein’s equation: E=vc2. A. Incorrect! When two nuclei or nuclear particles collide, a nuclear reaction can take place. B. Incorrect! When two nuclei or nuclear particles collide, a nuclear reaction can take place. Feedback on Each Answer Choice C. Incorrect! In a nuclear reaction, the total energy is conserved and the types of reactions include Fusion reactions, which can lead to a thermonuclear explosion, and Fission reactions. D. Correct! In a nuclear reaction, the total energy is conserved and the types of reactions include Fusion reactions, which can lead to a thermonuclear explosion, and Fission reactions. E. Incorrect! Mass-energy equivalence can be described with Einstein’s equation: E=mc2. Solution The study of the interactions of atomic nuclei is the subject of nuclear physics. Early studies, including those with radium, and the discovery of the neutron are the early steps of the field of nuclear physics. When two nuclei or nuclear particles collide, a nuclear reaction can take place. In a nuclear reaction, the total energy is conserved and the types of reactions include Fusion reactions, which can lead to a thermonuclear explosion, and Fission reactions. Mass-energy equivalence can be described with Einstein’s equation: E=mc2. The equation states that energy equals mass times the speed of light squared. Due to the fact that the speed of light is a massive number, even a small amount of matter contains a very large amount of energy. RapidLearningCenter.com Rapid Learning Inc. All Rights Reserved Question No. 9 of 10 Instructions: (1) Read the problem statement and answer choices carefully, (2) Work the problems on paper as needed, (3) Pick the answer, and (4) Review the core concept tutorial as needed. Which of the following answers to this kinetic energy problem is true? What is the kinetic energy of an 1100k g roller coaster that is moving at a speed of 23 m/s. Question #09 A. To calculate the kinetic energy, use: Ek = 1/2mv2. B. To calculate the kinetic energy, use: Ek = 1/2vm2. C. The kinetic energy of the roller coaster is 290950 Watts. D. The kinetic energy of the roller coaster is 290950 KWatts. E. There is insufficient information provided in the question to calculate the kinetic energy of the roller coaster. A. Correct! To calculate the kinetic energy, use: Ek = 1/2mv2. B. Incorrect! To calculate the kinetic energy, use: Ek = 1/2mv2. Feedback on Each Answer Choice C. Incorrect! Use Ek = 1/2mv2. The kinetic energy of the roller coaster is 290950 Joules. D. Incorrect! Use Ek = 1/2mv2. The kinetic energy of the roller coaster is 290950 Joules. E. Incorrect! Use Ek = 1/2mv2. The mass of 1100kg, and the speed of 23m/s, takes directly from the question allow one to calculate the kinetic energy of the roller coaster. Remember kinetic energy is the energy of motion. If an object has motion, it has kinetic energy. Choose the correct formula that will provide the information being asked. Solution To calculate the kinetic energy, use: Ek = 1/2mv2 Ek = 0.5 x 1100kg x (23 m/s)2 Ek = 290950 Joules RapidLearningCenter.com Rapid Learning Inc. All Rights Reserved Question No. 10 of 10 Instructions: (1) Read the problem statement and answer choices carefully, (2) Work the problems on paper as needed, (3) Pick the answer, and (4) Review the core concept tutorial as needed. Which of the following statements about the AP physics exam is true? Question #10 A. Some students incorrectly believe that if they study more as the test date approaches, they will remember more. B. Some students correctly believe that if they study more as the test date approaches, they will remember more. C. During the AP Physics exam, including the multiple choice and the free response sections, calculators are permitted. D. The score is determined in the following way: You are awarded 0.5 points for every correct answer. You are deducted 0.5 points for every incorrect answer. You are not awarded or deducted any points for blank answers. E. The score is determined in the following way: You are awarded 1 point for every correct answer. You are deducted 1/4 point for every incorrect answer. You are not awarded or deducted any points for blank answers. A. Correct! Some students incorrectly believe that if they study more as the test date approaches, they will remember more. B. Incorrect! Some students incorrectly believe that if they study more as the test date approaches, they will remember more. Feedback on Each Answer Choice C. Incorrect! During the AP Physics exam, only during the free response section is a calculator permitted. D. Incorrect! The score is determined in the following way: You are awarded 1 point for every correct answer. You are deducted ¼ point for every incorrect answer. You are not awarded or deducted any points for blank answers. E. Incorrect! That was the old scoring guideline. There is no guessing penalty in AP tests any more. Do not leave any question unanswered or blank for multiple choice sections. Attempt to answer all questions. Some students incorrectly believe that if they study more as the test date approaches, they will remember more. Building long-term memory by studying in set doses ahead of time increases memory and the understanding of concepts. Solution If you cram too much information and make yourself nervous the night before the exam, you might get into a “mental indigestion.” There is no longer any guessing penalty in AP tests. Do not skip any question. No points are awarded for answers left blank. You will always get the wrong answer if you don't fill in any choice. Take an educated guess. RapidLearningCenter.com Rapid Learning Inc. All Rights Reserved