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Forces and Motion

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  • Name 2 magnetic materials
    steel, iron, magnets
  • Force is measured with a ___________ balance.
    Spring
  • Force is measured in ___________.
    Newtons
  • What makes the Earth orbit the sun?
    The sun's gravitational force
  • Will two positively charged objects attract or repel?
    Repel
  • What is on the x-axis (horizontal) of a distance-time graph?
    Time
  • What makes an apple fall off a tree?
    The Earth's gravitational force
  • Give 2 examples of how we use muscular force.
    Running, talking, cleaning, dancing, . . .
  • Name 3 non-contact forces
    Gravitational, magnetic, and electric
  • What creates the tides in the ocean?
    The moon's gravitational force
  • Name 3 non-magnetic materials
    copper, aluminum, paper, plastic, wood, glass, . . .
  • What can we measure with a speedometer?
    Speed
  • Will a positively charged object and a negatively charged object attract or repel?
    Attract
  • Will two north pole magnetic attract or repel?
    Repel
  • What is on the y-axis (vertical) of a distance-time graph?
    Distance
  • Does frictional force speed up or slow down an object?
    Slow down
  • What has a stronger gravitational force, the Earth or the sun?
    The sun
  • What has a stronger gravitational force, the Earth or the moon?
    The Earth
  • Will a north pole and south pole magnet attract or repel?
    Attract
  • Motion depends on
    surface, mass, shape, & force
  • We use position, direction, and speed to describe _____________.
    Motion
  • Name 2 contact forces
    Frictional and muscular
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