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Force and Motion

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  • A line with an arrow and a dot which can show a force.
    Vector
  • The final force and its direction.
    Resultant
  • What two things affect acceleration?
    Mass and Momentum
  • A plane travels 1000 miles in 5 hours. What is its speed?
    200 m/hr
  • The faster velocity changes the slower the acceleration. True/False
    False
  • Which tool do we use to measure time?
    Stopwatch, watch or clock
  • The length between two points.
    Distance
  • A train is moving at 55 m/hr south. What is its velocity?
    55 m/hr south
  • Which tool do we use to show direction?
    Compass
  • A kid rides a bike 20 miles for 5 hours west. What is its velocity?
    4 m/hr west
  • When two or more forces cause a chane in motion, speed, and or direction.
    Unbalanced Forces
  • A force that acts at a distance and pulls objects towards each other.
    Gravity
  • Push/Pull or Both- A rake
    Both
  • Push/Pull or Both-Standing Up
    Pull
  • How much time it takes to travel a distance.
    Speed
  • The force that resists the motion of an object. It slows things down.
    Friction
  • The change in position in a certain amount of time.
    Motion
  • Which tool do we use to measure length or distance?
    meterstick
  • Two or more opposite forces that cancel each other out.
    Balanced Forces
  • A boat reaches 50 miles per hour from stopped in 2 minutes. What is its acceleration?
    25 m/s/s
  • What two things affect the pull of gravity
    Mass and Distance
  • It is easier to move a wagon across a smooth surface then a rough surface. True/False
    True
  • The greater the mass of an object the more acceleration it will have? True/False
    True
  • The greater the mass of an object the greater the force of gravity on that object. True/False
    True
  • The closer together two objects are the smaller the force of gravity. True/False
    False
  • Any object that is not moving and can be used to describe the position of another object.
    Reference Point
  • A push or pull on an object. It makes an object move, stop, change directions, speed up or slow down.
    Force
  • The measurement of the movement of matter. The relationship between an objects mass and velocity.
    Momentum
  • A car is moving at a constant speed. What is the speed of the car if it moves 50 miles in 2 hours?
    25 m/hr
  • The air particles an objects bumbs into as it falls through the air.
    Air Resistance
  • The amount of matter in an object.
    Mass
  • Unit used to measure force.
    Newtons
  • Speed and direction. It changes when speed changes, when direction changes, or both.
    Velocity
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