Q1. [numerical] (2 pts) A car travels {D} miles in {T} hours. What is the speed in meters per second? Formula: {D} * mile / ({T} * hour) ! meter/second Unit: m/s Tolerance: 5% Params: D=50-200, T=1-5.0 Q2. [numerical] (2 pts) A force of {F} newtons is applied to a {M} kg object. What is the acceleration? Formula: {F} * newton / ({M} * kg) Unit: m/s^2 Tolerance: 5% Params: F=10-100, M=1-20 Q3. [numerical] (3 pts) An object of mass {M} kg is moving at {V} m/s. What is its kinetic energy in joules? Formula: 0.5 * {M} * kg * ({V} * m / s)**2 Unit: J Tolerance: 5% Params: M=1-50, V=5-30 Q4. [numerical] (2 pts) Convert {P} atmospheres to pounds per square inch (psi). Formula: {P} * atm ! psi Unit: psi Tolerance: 5% Params: P=1-10 Q5. [numerical] (2 pts) A spring with constant {K} N/m is compressed by {X} cm. What is the potential energy stored in the spring? Formula: 0.5 * {K} * newton / m * ({X} * cm)**2 Unit: J Tolerance: 5% Params: K=100-1000, X=5-20 Q6. [mc] (1 pt) What is the SI unit of electrical resistance? A) Ohm B) Volt C) Ampere D) Watt Answer: A Q7. [mc] (1 pt) Which of the following is a unit of energy? A) Newton B) Pascal C) Joule D) Hertz Answer: C Q8. [text] (1 pt) What is the SI derived unit for force? Answer: newton Q9. [text] (1 pt) What physical quantity has the dimensional signature kg*m^2/s^2? Answer: energy Q10. [numerical] (3 pts) A {V} volt battery drives a current through a {R} ohm resistor. What is the power dissipated in watts? Formula: ({V} * volt)**2 / ({R} * ohm) Unit: W Tolerance: 5% Params: V=3-24, R=10-1000