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DCA 3 Review

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  • If the man and car have a mass of 3 Kg, what is the acceleration?
    1 m/s^2
  •  25
  • If the plane weighs 35 Kg, what is it's acceleration?
    20 m/s^2
  •  25
  • How would you describe the motion of the car?
    The acceleration of the vehicle was increasing.
    The vehicle was accelerating at a constant rate.
    The speed of the vehicle was increasing.
    The vehicle was traveling at a constant speed.
  •  15
  • What's the car's average speed in miles per hour?
    31.67
  •  15
  • How many neutrons are in the nucleus of a Scandium atom with a mass number of 45?
    24
  •  20
  • How many total atoms are in this molecule?
    26
  •  15
  • What color are the good conductors of electricity?
    Blue
  •  15
  • What color are the non-metal gases?
    Yellow
  •  15
  • How can we tell the reactivity of an atom?
    Number of valence electrons
  •  20
  • What's the difference between speed and velocity?
    Velocity is speed with direction
  •  15
  • If a car is traveling 234 miles per hour east, which of these statements is true?
    The acceleration is 234 mi/s^2
    The velocity is 3.9 mi/s east
    The speed is 3.9 mi/s east
    The acceleration is 3.9 mi/s^2
  •  25
  • When mass is held constant, as force increases, what happens to the acceleration?
    Increases
  •  15
  • What factor determines how a star travels through it's life cycle?
    Mass
  •  15
  • What type of galaxy is the Milky Way Galaxy?
    Spiral
    Irregular
    Elliptical
  •  15
  • What spectral class is our sun located in?
    G
  •  15
  • Why does the water keep moving when the man and cup are stopped due to tripping?
    Inertia (Objects in motion stay in motion, Newton's 1st Law)
  •  20