Physical Science; Ch. 11 Quiz 1

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  • 1/10 Questions

    Whether an object will float or sink in a liquid depends on the _________ of the object relative to that of the liquid.

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About This Quiz

Physical Science; Ch. 11 Quiz 1 assesses understanding of fundamental physics concepts such as pressure, density, buoyancy, and fluid dynamics. This quiz evaluates key principles like Pascal's and Bernoulli's, enhancing student comprehension of how forces and motion interact in different contexts.

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  • 2. 

    If you stand on one foot you ________ the pressure you exert on the ground.

    Explanation
    Choose the best term to fit from Ch. 11

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  • 3. 

    A ship is able to float on the ocean due to ______________ principle which states that the buoyant force acting on a submerged object is equal to the weight of the volume of water displaced by the object

    Explanation
    The correct answer is "Archimedes' principle" or "archimedes". This principle states that the buoyant force acting on a submerged object is equal to the weight of the volume of water displaced by the object. This explains why a ship is able to float on the ocean, as the weight of the water displaced by the ship is equal to the buoyant force acting on it, allowing it to remain afloat.

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  • 4. 

    An airplane is able to fly due in part to ________________ principle which states that the faster a fluid moves, the less pressure the fluid exerts.

    Explanation
    An airplane is able to fly due in part to Bernoulli's principle which states that the faster a fluid moves, the less pressure the fluid exerts. This principle is named after Daniel Bernoulli, a Swiss mathematician and physicist, who first formulated it in the 18th century. According to Bernoulli's principle, as the speed of air flowing over the wings of an airplane increases, the pressure decreases. This pressure difference creates lift, allowing the airplane to stay airborne. Therefore, Bernoulli's principle plays a crucial role in the aerodynamics of an airplane and its ability to fly.

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  • 5. 

    A submerged object is easier to lift due to the ____________ force acting on the object in the upward direction opposing the downward force of gravity.

    Explanation
    Choose the best vocabulary term to fit from Ch. 11

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  • 6. 

    If you divide the mass of an object by its volume, you also know the object's

    • Mass

    • Weight

    • Density

    • Pressure

    Correct Answer
    A. Density
    Explanation
    When you divide the mass of an object by its volume, you obtain the density of the object. Density is a physical property that measures how much mass is contained within a given volume. It is calculated by dividing mass by volume. Therefore, the correct answer is density.

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  • 7. 

    If you divide the force exerted on a surface by the total area of the surface, you will know...

    • Density

    • Pressure

    • Lift

    • Buoyant Force

    Correct Answer
    A. Pressure
    Explanation
    When you divide the force exerted on a surface by the total area of the surface, you will obtain the value of pressure. Pressure is defined as the amount of force applied per unit area. It is a measure of how much force is distributed over a given surface area. Therefore, by calculating this ratio, you can determine the pressure exerted on the surface.

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  • 8. 

    The concept that an increase in pressure on a confined fluid is transmitted equally to all parts of the fluid is known as

    • Pascal's principle

    • Bernoulli's principle

    • Archimede's principle

    • Mr. Thompson's principle

    Correct Answer
    A. Pascal's principle
    Explanation
    Pascal's principle states that when pressure is applied to a fluid in a confined space, the pressure is transmitted equally to all parts of the fluid. This means that if pressure is increased in one area of the fluid, it will be transmitted and felt equally in all other areas of the fluid. This principle is fundamental in understanding how hydraulic systems work, as it allows for the transmission of force and pressure throughout the fluid in a consistent manner.

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  • 9. 

    The concept that the pressure in a fluid decreases as the speed of the fluid increases is known as

    • Pascal's principle

    • Kidwell's principle

    • Archimedes principle

    • Bernoulli's principle

    Correct Answer
    A. Bernoulli's principle
    Explanation
    Bernoulli's principle states that as the speed of a fluid increases, the pressure within the fluid decreases. This principle is based on the conservation of energy in a fluid system, where the sum of potential energy, kinetic energy, and pressure energy remains constant. As the fluid's speed increases, its kinetic energy increases, resulting in a decrease in pressure. This principle is widely used in various fields, including aerodynamics, fluid dynamics, and engineering, to understand and predict the behavior of fluids in motion.

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  • 10. 

    The weight of an object that floats has the same value as the

    • Object's density

    • Objects mass

    • Object's volume

    • Buoyant force

    Correct Answer
    A. Buoyant force
    Explanation
    When an object floats, it means that the buoyant force acting on the object is equal to the weight of the object. The buoyant force is the force exerted by a fluid on an object immersed in it, and it is equal to the weight of the fluid displaced by the object. Therefore, the weight of an object that floats has the same value as the buoyant force.

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  • Current Version
  • Mar 17, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Apr 21, 2010
    Quiz Created by
    Wthompsonctems
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