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Day (2) Summative review

  •  English    10     Public
    Science
  •   Study   Slideshow
  • What do you call the center of the atom?
    Nucleus
  •  15
  • According to the Law of reflection, a light ray striking a mirror: 1- continues moving through the mirror in the same direction. 2- bounces off the mirror at the same angle it hits
    2- bounces off the mirror at the same angle it hits
  •  20
  • A(n) ……………………………………….wave is called a seismic wave. A. water. B. sound. C. earthquake.
    C. earthquake.
  •  25
  • Seismic waves can be…………………………… . A. transverse B. longitudinal C. a combination of longitudinal and transverse
    a combination of longitudinal and transverse
  •  15
  • ………….is the number of waves passing through a point un one second. A. amplitude. B. wavelength C. frequency
    C. frequency
  •  20
  • Which term describes changing direction of a wave when it passes through two different transparent media? A. Refraction. B. Reflection. C. Diffraction.
    Refraction.
  •  15
  • When a plastic ruler attracts tiny pieces of paper after rubbing it to your hair, this is an example of________________ a- current electricity b- static electricity
    b- static electricity
  •  25
  • 20- The accumulation of excess electric charge (positive or negative) on an object is called A- Static electricity B- Electric discharge C- Resistance
    A- Static electricity
  •  15
  • Which device uses direct current?
    Torch light
  •  25
  • Which graph represents Alternating current? Explain your answer
    B as the electrons move in different directions.
  •  25