QUESTION 1 In the International System of Units, length is measured using which of the following units? Om O km O kg ON QUESTION 2 Which of the following units is not an SI base unit? O Slug O Meter O Kilogram O Second QUESTION 3 If the mass of a vehicle is 100 kg, what is the weight of the vehicle on Earth? The acceleration due to gravity on Earth is 9.8 m/s. 0 9.8 N O 98 N O 980 N O 9800 N QUESTION 4 Which one of the following forces is considered a fundamental force? O Frictional force O Tension force O Normal force O Gravitational forceQUESTION 5 A satellite orbits the Earth in uniform circular motion. What is the direction of centripetal acceleration of the satellite? Because the centripetal acceleration is a scalar quantity, it does not have a direction The centripetal acceleration vector points radially outward from the Earth. The centripetal acceleration vector points radially inward toward the Earth. The centripetal acceleration vector points in the direction of the satellite's velocity. QUESTION 6 The initial kinetic energy in a system was 0 ], and the initial potential energy was 500 J. If the final kinetic energy is measured as 500 ], what is the final potential energy of the system? Ignore frictions. O OJ O 50 J O 100 J O 500 J QUESTION 7 A girl exerts an average force of 50 N on a toy cart for 0.5 seconds. What is the impulse? O 25 N/s O 250 N/s O 100 N/s O 10 N/s QUESTION 8 A boy exerts an average force of 100 N on a toy cart for 0.7 seconds. What is the impulse? O 7 N/s O 70 N/s O 700 N/s 7000 N/sQUESTION 9 A spring has a spring constant of 10 N / m. Find the magnitude of the force needed to compress the spring by 0.1 m. O 0.1 N O IN O 10 N O 100 N QUESTION 10 A spring has a spring constant of 100 N / m. Find the magnitude of the force needed to compress the spring by 0.1 m. O 0.1 N O IN O 10 N O 100 N QUESTION 11 April has two freezers in her laboratory. Inside freezer A, the temperature is OF, and inside freezer B the temperature is O'C. Which one of the following statements about these freezers is true? O The inside of freezer A is colder than the inside of freezer B. The inside of freezer B is colder than the inside of freezer A. O A and B are at the same temperature. O There's no way to compare the temperatures of these two freezers because the units are different. QUESTION 12 The pressure acting on a floating piece of wood is measured by 1000 Pascals, and its surface area is 0.01m-. What is the magnitude of the force in Newtons? O IN O 10 N O 100 N O 1000 NQUESTION 13 Select the best description of the first law of thermodynamics O The change in internal energy is heat minus work. O The change in internal energy is heat plus work. O When work is done by the system, the work is negative. O When work is done on the system, the work is positive. QUESTION 14 Which one of the following is not a correct description of Stefan-Boltzmann's law? O When considering a perfect blackbody, the emissivity e is equal to one. O The radiant energy is proportional to the fourth power of the Kelvin temperature. O The emissivity varies based on the properties of the surface of an object. The Stefan-Boltzmann constant o is dependent on the condition of the blackbody surface. QUESTION 15 The efficiency of a Carnot engine is e = 1- Tc/ TH, where To is the temperature of the cold reservoir, and Ty is the temperature of the hot reservoir. At what temperature will the engine have 100% efficiency? O TC = OK O Th = OK O TC = 100 K O Th = 100 KQUESTION 16 Suppose your work is done to compress a gas is 50 J. It 100 J of heat is lost in the process, what is the change in the internal energy of the gas? Your response must be at least 75 words in length and should include any equations that are needed to answer the problem. QUESTION 17 3000 J of heat flows spontaneously through a metal rod from a hot reservoir at 500 K to a cold reservoir at 300 K. What is the entropy gained by the cold reservoir? Your response must be at least 75 words in length and should include any equations that are needed to answer the