Sound Waves and Energy Quiz
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Questions and Answers

Which type of energy is associated with the movement of electrical charges?

  • Electrical energy (correct)
  • Mechanical energy
  • Thermal energy
  • Radiant energy

    • What type of energy is related to the internal energy and movement of atoms and molecules within substances?

  • Mechanical energy
  • Potential energy
  • Kinetic energy
  • Thermal energy (correct)

    • Which form of energy involves the movement of objects and substances from one place to another?

  • Electrical energy
  • Thermal energy
  • Mechanical energy (correct)
  • Potential energy

    • What type of energy is associated with electromagnetic waves?

    <p>Radiant energy</p> Signup and view all the answers

    What is the range of vibrations (in decibels) that the human ear can hear?

    <p>20 - 16,000 decibels</p> Signup and view all the answers

    What type of waves are ultrasonic waves?

    <p>Longitudinal waves</p> Signup and view all the answers

    What is the distinguishing characteristic of a homogenous system?

    <p>Uniform characteristics throughout</p> Signup and view all the answers

    What is the defining characteristic of elements?

    <p>Inability to decompose further through chemical means</p> Signup and view all the answers

    What distinguishes organic compounds from inorganic compounds?

    <p>Presence of carbon</p> Signup and view all the answers

    What indicates the presence of acids or bases?

    <p>Change in color using litmus paper</p> Signup and view all the answers

    What type of mixture is an alloy?

    <p>Homogeneous mixture</p> Signup and view all the answers

    Which type of energy does a pendulum have?

    <p><strong>Mechanical energy</strong></p> Signup and view all the answers

    What kind of waves are used to see in utero foetuses and the functioning of human hearts?

    <p><strong>Ultrasonic waves</strong></p> Signup and view all the answers

    What happens when acids are dissolved in water?

    <p><strong>They yield hydrogen ions (H+)</strong></p> Signup and view all the answers

    What type of substances cannot be decomposed further through chemical means?

    <p><strong>Elements</strong></p> Signup and view all the answers

    What is the defining characteristic of a homogenous substance?

    <p><strong>Uniform throughout</strong></p> Signup and view all the answers

    Which type of energy is defined as the energy in matter due to its position or the arrangement of its parts?

    <p>Potential energy</p> Signup and view all the answers

    What type of energy is stored in the bonds of atoms and molecules?

    <p>Chemical potential energy</p> Signup and view all the answers

    When something is lifted or suspended in air, what type of energy is converted?

    <p>Gravitational potential energy</p> Signup and view all the answers

    What type of energy is stored in stretched rubber bands, compressed springs, and trampolines?

    <p>Stored mechanical (elastic potential) energy</p> Signup and view all the answers

    Where is nuclear energy stored?

    <p>In the nucleus of an atom</p> Signup and view all the answers

    What does the law of conservation of energy state?

    <p>Energy is neither created nor destroyed</p> Signup and view all the answers

    What happens to the total amount of energy in the universe according to the law of conservation of energy?

    <p>It remains the same over time</p> Signup and view all the answers

    What does a car engine do when it converts the chemical energy in gasoline into mechanical energy?

    <p>Convert chemical energy into mechanical energy</p> Signup and view all the answers

    What happens to almost all of the stored energy in the molecules of gasoline used during an automobile trip?

    <p>It is lost as heat due to friction and exhaust</p> Signup and view all the answers

    What happens to energy when it transforms into heat resulting in diffusion?

    <p>It becomes less likely to undergo further transformations</p> Signup and view all the answers

    What are the two groups into which energy sources are classified?

    <p>Renewable and Non-renewable</p> Signup and view all the answers

    What are light, motion, thermal energy, and sound considered as?

    <p>Evidences of kinetic and potential energies</p> Signup and view all the answers

    What is a characteristic of a heterogeneous system?

    <p>It has two or more distinct phases</p> Signup and view all the answers

    Which type of mixture exhibits the Tyndall effect?

    <p>Colloids</p> Signup and view all the answers

    How can insoluble material be separated from a liquid using a filter paper?

    <p>Filtration</p> Signup and view all the answers

    Which method is used to separate two immiscible liquids?

    <p>Separatory funnel</p> Signup and view all the answers

    What is the force that opposes the natural motion of an object?

    <p>Kinetic friction</p> Signup and view all the answers

    Which type of frictional force is the weakest and opposes motion in rolling motion?

    <p>Rolling friction</p> Signup and view all the answers

    What are non-contact forces?

    <p>Forces that occur when the fields around objects interact with each other</p> Signup and view all the answers

    What is the gravitational field that affects space around any mass?

    <p>$g = 9.8 m/s^2$</p> Signup and view all the answers

    Which process results in contamination of water by foreign matter such as microorganisms, chemicals, industrial or other wastes or sewage?

    <p>Water Pollution</p> Signup and view all the answers

    What is the relationship between the strength of the field around an object and its mass?

    <p>The strength of the field increases with the mass of the object</p> Signup and view all the answers

    What type of material does not ordinarily allow any passage of charges through it, as mentioned in the text?

    <p>Insulating material</p> Signup and view all the answers

    What do moving electric charges produce, according to the text?

    <p>Magnetic fields</p> Signup and view all the answers

    In electromagnetic force, what induces a magnetic field, and vice versa?

    <p>Moving electric charges</p> Signup and view all the answers

    What does Sir Isaac Newton's 1st Law of Motion state?

    <p>An object at rest remains at rest and an object in motion remains in motion in a straight line and at constant speed unless acted upon by an external unbalanced force.</p> Signup and view all the answers

    What characteristic defines some complicated motions, such as vibrations and waves?

    <p>Pattern of motion</p> Signup and view all the answers

    What are ultrasonic waves, as discussed in the text?

    <p>Waves that are undetectable by humans</p> Signup and view all the answers

    What do electromagnetic waves include, based on the text?

    <p>All regions from longest wavelength-radio waves to ultraviolet radiation in sunlight</p> Signup and view all the answers

    What type of waves can produce burning, tanning, and cancer in human skin?

    <p>Ultraviolet waves</p> Signup and view all the answers

    What is true about ultrasonic waves?

    <p>They vibrate at a very fast rate</p> Signup and view all the answers

    What do electromagnetic waves interact with according to the text?

    <p>Matter, affecting transformation, absorption, reflection or distraction</p> Signup and view all the answers

    What are examples of complicated motions that can be described in terms of the pattern of motion?

    <p>Sound waves and earthquakes</p> Signup and view all the answers

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