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Hi Do you have time to work on this? Please let me know ASAP. Thanks Why do scientists run control experiments and repeat their tests several times?Question 1 options: because chemistry is about doing experiments to maximize the number of possible conclusions that can be obtained because they get paid by the hour to minimize the number of conclusions and limit potential flaws in the experiment to improve the chance of success Question 2 (1 point) An object weighs 30 N on Earth. A second object weighs 30 N on the Moon. Which has the greater mass?Question 2 options: the one on the Moon the one on Earth They have the same mass. not enough information to say Question 3 (1 point) An object in mechanical equilibrium is an objectQuestion 3 options: having no acceleration. moving with constant velocity. at rest. all of the above Question 4 (1 point) A man weighing 800 N stands at rest on two bathroom scales so that his weight is distributed evenly over both scales. The reading on each scale isQuestion 4 options: 200 N. 1600 N. 400 N. 800 N. none of the above Question 5 (1 point) A force is a vector quantity because it has bothQuestion 5 options: mass and acceleration. magnitude and direction. action and reaction counterparts. Question 6 (1 point) An object is propelled along a straight-line path by a force. If the net force were doubled, its acceleration wouldQuestion 6 options: stay the same. double. halve. quadruple. none of these Question 7 (1 point) A heavy rock and a light rock in free fall have the same acceleration. The reason the heavy rock doesn’t have a greater acceleration is that theQuestion 7 options: air resistance is always zero in free fall. force due to gravity is the same on each. inertia of both rocks is the same. ratio of force to mass is the same. none of these Question 8 (1 point) Arnold Strongman and Suzie Small have a tug-of-war on a polished floor. Arnold wears socks and Suzie wears gym shoes. The likely winner isQuestion 8 options: Arnold. Suzie. neither, for they should be tied. no basis for predicting Question 9 (1 point) If you push an object just as far while applying twice the force, you doQuestion 9 options: twice as much work. the same amount of work. four times as much work. Question 10 (1 point) A hydraulic press, like a simple level, properly arranged is capable of multiplying energy input.Question 10 options: sometimes true always false Question 11 (1 point) Compared to a recoiling rifle, the bullet fired has a greaterQuestion 11 options: kinetic energy. momentum. none of these Question 12 (1 point) When the distance between two stars decreases by half, the force between themQuestion 12 options: decreases by one-half. decreases by one-quarter. increases to twice as much. increases to four times as much. stays the same. Question 13 (1 point) Inside a freely falling runaway elevator, yourQuestion 13 options: acceleration is zero. gravitational interaction with the Earth is zero. apparent weight is zero. all of these none of these Question 14 (1 point) If the mass of an object were to double while its volume remains the same, its density wouldQuestion 14 options: halve. stay the same. double. Question 15 (1 point) Water pressure is greatest against theQuestion 15 options: bottom of a submerged object. is the same against all surfaces. sides of a submerged object. top of a submerged object. none of these Question 16 (1 point) A fish normally displaces its ownQuestion 16 options: weight of water. volume of water. both of these neither of these Question 17 (1 point) The air in this room hasQuestion 17 options: weight. mass. energy. all of these none of these Question 18 (1 point) Which temperature scale labels the freezing point of water at 0 degrees?Question 18 options: Kelvin Caloric Celsius Fahrenheit none of the above Question 19 (1 point) If you run a refrigerator in a closed room with the refrigerator door open, the room temperature willQuestion 19 options: increase. decrease. remain unchanged. Que

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