Grade 11 Physics Practice Exam

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• A force of 10 N acts on a body for 3 m in the same direction as the displacement. What is the work done?
• When a cheerleader is thrown vertically upward into the air, which quantity increases as she rises?
• A velocity-time graph is a straight line with a positive slope. This indicates the object has what?
• A 5 kg mass experiences a net horizontal force of 15 N. What is its instantaneous acceleration?
• The area under a velocity-time graph corresponds to which quantity?
• A mass is raised at constant speed by a vertical motor. If the mass is 2 kg and the speed is 1 m/s, what is the power required?
• A car starts from rest and accelerates at 3 m/s^2 for 5 seconds. How far does it travel?
• Heat is the transfer of energy due to a temperature difference.
• Which force from the floor acts to move you forward when you start walking?
• Which of the following is a non-contact force?
• The ______ Scale is based on the boiling point and freezing point of water
• What term describes the transfer of energy from a warmer body to a cooler one?
• A 2 kg object moves at 4 m/s; if velocity increases to 8 m/s, what is KE?
• If a kinetic energy of 16 J is possessed by a 2 kg object, what is its velocity?
• Which term describes the maximum point of a transverse wave?
• _____ is defined as the rate of change in velocity
• Which wave property most affects the intensity or loudness of sound?
• What is the weight of a person of mass 70 kg on Earth?
• A force of 12 N acts on a body for 4 m at an angle of 30° to the displacement. What is the work done?
• The magnetic field around a long straight wire with current I = 6 A at distance r = 0.1 m is B = μ0 I /(2π r). Which of the following is the approximate value of B?
• Convert 25°C to Kelvin.
• Which of the following frequencies is infrasonic?
• Two slits separated by d = 0.25 mm produce interference with light λ = 500 nm. What is the approximate angle for the first maximum (m = 1)?
• For a point charge q = 5 μC at a distance r = 0.2 m, what is the magnitude of the electric field E? Use k ≈ 9×10^9 N·m^2/C^2.
• Which type of radioactive decay emits a photon?
• If the mass is doubled while velocity remains the same, how does KE change?
• The total quantity of kinetic and potential energy possessed by the atoms or molecules of a substance is called
• A current of 2 A flows through a 4 Ω resistor. What is the voltage across the resistor?
• A coil has N = 100 turns. The magnetic flux through it changes by ΔΦ = −0.4 Wb in Δt = 0.2 s. What is the induced emf (magnitude)?
• If a sound wave has greater loudness, which property has increased?
• If equal masses are given the same amount of heat, the object with greater heat capacity will experience a smaller change in temperature.
• In a parallel circuit with resistors 6 Ω and 3 Ω across 12 V, what is the equivalent resistance and the current from the source?
• Your 'weight' is properly defined as
• What type of energy is possessed by objects that are primarily affected by gravity and frictional forces?
• The slope of the tangent to a position-time graph equals which quantity?
• A car of mass 1500 kg moves at 20 m/s around a flat circular track of radius 50 m. What is its centripetal acceleration?
• A 10 kg block on a horizontal surface has μk = 0.3. A 20 N horizontal force is applied. What is the resulting acceleration (consider friction opposing the motion)?
• In a chain reaction, what event occurs when a neutron collides with a fissile nucleus?
• In a nuclear reaction, which term describes the reactant atom?
• A freely falling object starts from rest and falls 20 meters. Ignoring air resistance, how long does it take to reach the ground?
• An ideal transformer has primary voltage Vp = 240 V, secondary voltage Vs = 24 V and secondary current Is = 2 A. What is the primary current Ip (and verify power balance)?
• In a series circuit with resistors 3 Ω and 6 Ω connected to a 12 V source, what is the current I and the voltage drop across the 3 Ω resistor?
• Which quantity is conserved when only conservative forces perform work on a system?
• A machine delivers 200 J of useful work from an input of 320 J. What is its efficiency?
• Which type of energy is released during radioactive decay?
• Which term describes the lowest point of a transverse wave?
• Your weight on board an orbiting space station would be
• The coefficient of friction stems from the
• In a system at thermal equilibrium, which statement is true about heat exchange?
• For an object moving forward (nonnegative velocity), the area under the velocity-time graph between two times represents what?
• Which term describes a nuclear reaction in which two nuclei fuse to form a larger nucleus?
• _____ is a measure of the average kinetic energy of the atoms and molecules in a substance
• Using ΔU = Q − W for a gas, if Q = 250 J and W = 0, what is ΔU?
• A 5 kg block on a 30° incline has μ = 0.2. What is its acceleration down the incline? (g = 9.8 m/s^2, friction up the plane)
• A high-energy particle with no mass is called?
• How long does it take for an object starting from rest to fall 10 m in vacuum (no air resistance)?
• The process by which a radioactive atom's nucleus breaks apart and forms different atoms is called?
• What is the expression for kinetic energy?
• An object of mass 0.5 kg changes velocity from 2 m/s to -3 m/s. What is the impulse delivered?
• Using ΔU = Q − W, if Q = −100 J and the system does 20 J of work, what is ΔU?
• For a parallel-plate capacitor, if plate area doubles and separation halves, how does the capacitance change relative to its original value?
• For hydrogen, E_n = −13.6 eV / n^2. What is the energy difference ΔE for the transition n = 3 to n = 2 (emitted photon)?
• The process of energy transfer by means of electromagnetic waves is called
• A gas expands at constant pressure P = 1.0×10^5 Pa with ΔV = 0.01 m^3. What is the work done by the gas?
• The magnetic field around a long straight wire with current I = 6 A at distance r = 0.1 m yields B ≈ 1.2×10^-5 T. Which of the following is the correct value?
• Which heat transfer mode requires the movement of matter?
• A converging (convex) lens with focal length f = 10 cm forms a real image of an object placed at do = 15 cm. Find image distance di and magnification.
• Which observation best illustrates Newton's Third Law?
• A wave with speed v = 340 m/s and wavelength λ = 0.68 m has what frequency f?
• A 1.5 kg block of water is heated by 3000 J. With c = 4.18 kJ/(kg·K), what is the temperature rise ΔT?
• Two slits separated by d = 0.25 mm produce interference with light λ = 500 nm. What is the approximate angle for the second maximum (m = 2)?
• If the period of a wave doubles, what happens to the frequency?
• A parallel-plate capacitor has plate area A = 0.01 m^2 and plate separation d = 0.001 m. What is its capacitance (ε0 = 8.85×10^-12 F/m)?
• A 2 kg block slides down a 2 m high frictionless track. What is its speed at the bottom? (g = 9.8 m/s^2)
• Which statement best describes the chain reaction that occurs during nuclear fission?
• The slope of a position-time graph is equal to the object's
• A repeated series of reactions in which the products generate subsequent reactions is called a
• Which statement about kinetic energy is true?
• If Mary lifts a dumbbell 3.0 m straight up above her head in 20 s, and the same task is completed in 10 s, the energy she would need to use would be
• Mechanical energy is the sum of which two forms of energy?
• A position-time graph with a horizontal line indicates the object has what velocity during that interval?
• Which option expresses the decimal form of 62.5%?
• A 4 Ω resistor has a current of 2 A for 3 s. How much energy is dissipated as heat?
• A concave mirror with focal length f = 10 cm forms an image of an object placed at do = 20 cm. What type and magnification of the image are produced?
• What is the distance between successive crests of a wave called?
• Which type of radioactive decay emits a positron?
• In Newton's third law, the action and reaction forces ...?
• Which term refers to the property of a medium that returns to its original shape after being disturbed?
• What term describes the ratio of an object's speed to the speed of sound in the surrounding medium?
• A projectile is launched from ground level with speed 20 m/s at an angle of 45° above the horizontal. What is its range on level ground (ignore air resistance)?
• Which fundamental force only exerts forces of attraction, never repulsion?
• Which particle is primarily responsible for sustaining the chain reaction in fission?
• Two carts with masses m1 = 2 kg and m2 = 3 kg collide elastically along a straight line. If their initial velocities are v1i = 4 m/s and v2i = -2 m/s, what are the final velocities v1f and v2f?
• The force of friction always acts in a direction exactly opposite to the
• A charged particle q = 1.6×10^-19 C moves with velocity v = 3×10^6 m/s perpendicular to a magnetic field B = 0.1 T. What is the magnitude of the magnetic force on the particle?
• In a train that suddenly stops, a drink ends up in your lap. What force is responsible for its motion?
• Which fundamental force is the weakest?
• Position is best defined as
• The rapidness with which atoms and molecules of a substance travel refers to which form of energy?
• In the photoelectric effect, work function φ = 2 eV. If incident photon energy is h f = 3 eV, what is the kinetic energy of the ejected electron?
• Which quantity describes the force that is perpendicular to a surface?
• The capacity to do work is known as which quantity?
• A 440 Hz sound wave travels in air at 343 m/s. What is its wavelength?
• Which term describes the number of cycles per second of a wave?
• The acceleration of a moving object is always in the direction of the
• What is the SI unit of electric charge?
• What term describes atoms of the same element with different numbers of neutrons?
• An 8 kg block sits on a horizontal surface with μk = 0.25. A horizontal force of 19.6 N is applied. What is the acceleration?
• In the absence of non-conservative forces, which quantity is conserved?
• A light ray passes from air into water (n1/n2 ≈ 1/1.33). If the incidence angle i = 60°, what is the refracted angle r approximately?
• Which energy form is stored due to position relative to a reference level?
• Two equal-mass blocks m = 1 kg collide in a one-dimensional perfectly elastic collision with one initially at rest and the other moving at 3 m/s. What are the final velocities?
• In a velocity-time graph, the slope of the line represents which physical quantity?
• The process of transferring heat through a material by the collision of atoms is called
• Amplitude measures the maximum displacement of a point on a wave from its rest position.
• A converging lens with focal length f = 10 cm forms an image for an object at do = 25 cm. Find the image distance di and the magnification m.
• Which statement best describes mechanical waves in fluid media?
• A gas expands reversibly at constant pressure P = 1.0×10^5 Pa, volume increases from 0.02 m^3 to 0.05 m^3. What is the work done by the gas?
• Doubling the velocity of an object with constant mass changes KE how?
• A 2 kg object moves at 4 m/s. What is its kinetic energy?
• Which type of radioactive decay emits a helium nucleus?
• Which scenario involves negative work done on the object by the force acting?
• Which scenario illustrates Newton's Third Law?
• Which type of radioactive decay changes the nucleus without changing the atomic number or mass number?
• Light travels from air (n1 = 1.00) into water (n2 = 1.33) with an incident angle i = 30°. What is the refracted angle r (approximately)?
• Which scenario demonstrates inertia most directly?
• Which is NOT considered a fundamental force?
• A 5 kg mass is raised 3 m. What is the gravitational potential energy gain?
• Which term describes a nuclear decay process in which daughter atoms are different elements from the parent atoms?
• Which term refers to the material that permits the transmissions of energy through vibrations?
• Which expression correctly represents kinetic energy?
• Which heat transfer mode can occur in a vacuum?
• The term that describes the position within a cycle of a periodic motion with respect to a reference point is called?
• Induced emf for N = 250 turns, ΔΦ = 0.8 Wb, Δt = 0.2 s yields ε = NΔΦ/Δt. Which value is correct?
• The process of transferring heat by a circulating path of fluid particles is called
• If the net force on an object is zero, its acceleration is
• The process by which a solid changes into its liquid state at a certain fixed temperature by the absorption of heat is called
• What is the decimal form of 62.5%?
• A resistor has R = 4 Ω and carries a current I = 2 A. What is the power dissipated?
• A 2 kg mass is raised at a constant speed by a vertical motor. If the mass is raised at 0.5 m/s, what is the power output required? (neglect losses)
• Mach number represents
• Which force propels you forward when you walk?
• In ΔU = Q − W, with Q = −50 J and W = 30 J, ΔU equals?
• Which term describes the cyclical motion of an object about an equilibrium point?
• What term refers to the time for a vibrating particle to complete one cycle?
• A block of mass 6 kg on a horizontal surface with μk = 0.3 experiences a 30 N applied force. What is its acceleration?
• Beta-minus decay results in emission of which particle?
• A particle has a straight-line position-time graph with slope 5 m/s. What is its velocity?
• To melt 0.5 kg of ice at 0°C, with latent heat of fusion Lf = 334 kJ/kg, how much energy is required?
• What is the process called when a nucleus splits into two smaller nuclei, releasing energy?
• Binding energy is commonly expressed in units of
• Which statement describes how mechanical waves transmit energy efficiently?
• The amount of energy required to separate all the nucleons of an atom's nucleus is called
• In carbon-14, how many neutrons are present in each atom?
• In a lead mass suspended by a string, if the action force is gravity on the lead mass, what is the reaction force?
• Which force is primarily responsible for keeping planets in orbit around the Sun?
• Which scenario illustrates Newton's Third Law?
• Which statement about gravitational potential energy is true?
• If only conservative forces act on a system, what happens to the total mechanical energy?
• Energy difference for hydrogen transition n = 4 to n = 2 is approximately which value?
• Inertia is most directly related to which property of matter?
• Which energy form is the energy possessed by an object due to its motion?
• A wave with frequency f travels at speed v in a medium. How is wavelength λ related to f and v?
• An object moving with constant velocity experiences what condition for the net force acting on it?
• An unstable isotope that spontaneously changes its nuclear structure and releases energy in the form of radiation is called?
• A charge q = 2 C is located in a static electric potential V = 10 V. What is its electric potential energy U?
• The speed of sound is most dependent on which of the following
• A 1 kg mass is brought from 0 to 6 m/s in 1 s. What is the impulse delivered?
• Sound waves are
• A ball is thrown upward with initial speed 12 m/s. Neglect air resistance. Which value is closest to the maximum height above the launch point?
• In a one-dimensional perfectly elastic collision between a 1 kg block moving at 3 m/s and a 2 kg block at rest, what are the final velocities?
• The difference between the calculated mass of an atom and its actual atomic mass is called the
• In a gas, heat added Q = 500 J and work done by the gas W = 200 J. According to the first law ΔU = Q − W. What is ΔU?
• A car moves in a circle of radius 15 m at a speed of 30 m/s. What is its centripetal acceleration?
• If two substances of equal mass are supplied the same amount of thermal energy and their final temperatures are different, you can assume that they have
• If a force is applied in the same direction as the displacement, the work done by that force is
• Which temperature scale has absolute zero at zero?
• A medium's effectiveness at transmitting vibrations is dependent upon which of the following?