Which law states that an object remains at rest or moves uniformly unless acted on by a net force?, Third Law, Gravity Law, First Law, Second Law, What equation expresses Newton's Second Law?, p = mv, P = W/t, F = ma, W = Fd, For every action force, there is an equal and opposite reaction force. This is Newton's:, Second Law, First Law, Third Law, Zeroth Law, Friction acts in a direction that generally:, Aids motion, Points upward, Opposes motion, Points inward, Which force keeps an object moving in a circular path?, Electric force, Centripetal force, Buoyant force, Normal force, A 2 kg object accelerates at 3 m/s². What is the net force?, 9 N, 6 N, 5 N, 1.5 N, If the net force on an object is zero, the object may:, Move constant, Stop always, Turn only, Speed up, Static friction is best described as friction that:, Causes motion, Prevents motion, Acts in fluids, Opposes sliding, Kinetic friction acts when surfaces are:, Floating only, At rest, Heating up, Sliding past, What is the centripetal acceleration formula?, ma/F, v²/r, Fd, r/v², A crane lifting loads faster while doing the same work has greater:, Pressure, Density, Power, Buoyancy, Using low-friction bearings in machines mainly improves:, Air pressure, Energy efficiency, Color contrast, Fluid density, Seat belts improve safety mainly by increasing the time to change a passenger's:, Volume, Density, Momentum, Temperature, Which sports design can improve performance using work and power concepts?, Wider jersey, Brighter shoes, Lighter bicycle, Taller net, Which real-life design best applies friction and centripetal force for safer driving?, Longer antennas, Banked curves, Louder horns, Dark windows, A vertical line on a PV diagram means the volume is:, Decreasing only, Doubling, Zero, Constant, A horizontal line on a PV diagram means the pressure is:, Zero, Constant, Variable only, Increasing, On a PV diagram, the area under the curve represents:, Mass lost, Heat capacity, Work done, Temperature only, If volume increases at constant temperature, gas pressure generally:, Doubles always, Increases, Stays same, Decreases, If temperature of a gas rises at constant volume, pressure generally:, Increases, Stays same, Decreases, Becomes zero, Which equation is the ideal gas law?, Q = mcΔT, PV = nRT, F = ma, W = Fd, Ideal gas particles are assumed to have:, Permanent bonds, Negligible volume, Strong attraction, Zero speed, Which is a property of an ideal gas?, Large particles, No interactions, Fixed volume, High density, Heat is transferred by conduction most effectively in:, Vacuum, Plastic bags, Foam, Metals, In thermal equilibrium, objects in contact have the same:, Mass, Volume, Temperature, Pressure, Which equation is commonly used for heat gained or lost?, P = IV, F = ma, PV = nRT, Q = mcΔT, Heat capacity tells how much heat is needed to change an object's:, Shape only, Temperature, Density only, Color, Thermal expansion in bridge design is handled by using:, Extra weight, Expansion joints, Thicker paint, Smaller bolts, When most solids are heated, their length usually:, Increases, Becomes zero, Stays same, Decreases, If object A is in thermal equilibrium with B, and B with C, then A and C have the same:, Volume, Temperature, Mass, Pressure, The Zeroth Law of Thermodynamics is about:, Expansion only, Thermal equilibrium, Gas pressure, Heat engines, A temperature increase of 1°C equals how many kelvins of change?, 273 K, 1 K, 0 K, 32 K, Water freezes at what Fahrenheit temperature?, 0°F, 273°F, 100°F, 32°F, 0°C is equal to:, 32 K, 100 K, 273 K, 212 K, Air moving faster over an airplane wing helps create:, Lift, Density, Viscosity, Weight, According to Bernoulli's principle, when fluid speed increases, pressure usually:, Decreases, Stays zero, Doubles, Increases, Which factor affects flotation most directly?, Brightness, Color, Texture only, Average density, An object floats when its average density is:, Unrelated, Less than fluid, Greater than fluid, Equal only, Buoyant force equals the weight of the:, Air above, Displaced fluid, Object, Container, At greater depth in a liquid, pressure is:, Same, Higher, Zero, Lower, Fluid pressure generally changes with depth by:, Increasing, Decreasing, Staying same, Oscillating, If 200 g of a substance occupies 50 cm³, its density is:, 4 g/cm³, 10 g/cm³, 0.25 g/cm³, 250 g/cm³, The SI unit of density is:, N/m², J/kg, kg/m³, W/m, Density is mass divided by:, Area, Time, Force, Volume, A cable holding a sign in equilibrium must provide a tension that helps balance:, Volume, Density, Temperature, Weight, A seesaw is balanced when clockwise torque is:, Less, Greater, Random, Equal, For static equilibrium, the net force and net torque must both be:, Positive, Zero, Balanced only, Equal mass, Angular momentum is conserved when the net external torque is:, Negative, Zero, Positive, Maximum, The SI unit of torque is:, kg/m³, J/s, Pa, N·m, Torque depends on force and its:, Volume, Color, Density, Lever arm, Which everyday example best shows the work-energy theorem?, Boiling water, Braking car, Floating wood, Melting ice, If net work on an object is positive, its kinetic energy:, Stays same, Becomes zero, Increases, Decreases, The work-energy theorem states that net work equals the change in:, Density, Pressure, Momentum, Kinetic energy, If 200 J of work is done in 10 s, the power is:, 2000 W, 20 W, 100 W, 0.05 W, Power is defined as:, Force/area, Energy × time, Work/time, Mass/volume, A 4 kg object is lifted 2 m. Using g = 9.8 m/s², its potential energy gain is:, 19.6 J, 39.2 J, 8 J, 78.4 J, Which expression gives gravitational potential energy?, mv, ½mv², mgh, Pt, The work done in lifting an object straight up equals:, Torque × time, Mass × speed, Pressure × area, Force × height, A 10 N force acts on a box over 5 m in the same direction. Work done is:, 15 J, 2 J, 500 J, 50 J, If mass doubles while acceleration stays the same, net force becomes:, Doubled, Halved, Tripled, Unchanged, On a level road, the centripetal force on a turning car is mainly provided by:, Air drag, Engine thrust, Friction, Weight, A car rounds a curve at constant speed. Its acceleration points:, Forward, Upward, Backward, Centerward

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