Quiz on 10c Gravity, Fluid Motion, and Work
 1. Which of the following states that any two objects in the universe without exception, attract each other?A) Law of Conservation of MomentumB) Bernoulli's PrincipleC) Law of Universal GravitationD) Law of Conservation of Matter and Energy2. The amount of gravitational pull between two objects depends on two things. What are they?A) momentum and density between the two objectsB) distance between the two objects and the amount of time it takes to get from one to the otherC) density and mass of the the two objectsD) mass and distance between the objects3. What is the formula for momentum?A) Momentum = force times distanceB) Momentum = distance divided by timeC) Momentum = mass divided by densityD) Momentum = mass times velocity4. Which of the following states that the total momentum of the objects that interact does not change?A) Law of Conservation of MomentumB) Law of Conservation of Matter and EnergyC) Law of Universal GravitationD) Bernoulli's Principle5. Which of the following is the upward force exerted by a fluid on a submerged object?A) buoyant forceB) momentumC) gravityD) density6. What is the formula for density?A) Density = mass divided by volumeB) Density = force times distanceC) Density = gravity x massD) Density = mass times velocity7. Which of the following states that the pressure exerted by a moving stream of fluid is less than the pressure of the surrounding fluid?A) Law of Conservation of Matter and EnergyB) Law of Conservation of MomentumC) Bernoulli's PrincipleD) Law of Universal Gravitation8. Which of the following terms describes using a force to move an object a distance, when both the force and the motion of the object are in the same direction?A) WorkB) BuoyancyC) DensityD) Momentum9. It is possible to do work, but have no motion.A) FalseB) True10. Is work being done: A mother carries her baby from room to room.A) NoB) Yes11. What is the SI unit of work?A) kgxm/s2B) Meter-NewtonC) JouleD) Newton12. If a woman pushes a pile of cardboard 10 meters with a force of 2 N, how much work has she done?A) 20 NB) 5 kgxm/s2C) 5 JD) 20 J
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