Study

Unit 2: Force & Motion

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  • Students are watering roses with different liquids to see which is most effective for plant growth. What is the dependent variable in this experiment?
    amount of growth
  • What is a control/controlled variable?
    all parts of the experiment that stay the same (what keeps the experiment FAIR)
  • Cars are being tested to see how far they travel across different surfaces. What is the independent variable in this experiment?
    type of surface (friction)
  • Is this an example of equal or unequal force?
    unequal
  • What is an independent variable?
    The part of the experiment I CHANGE. I in independent = I change
  • What does collision mean?
    Allows for energy to transfer when objects to collide
  • Cars are being tested to see how far they travel across different surfaces. What is the dependent variable in this experiment?
    distance traveled
  • What does inconsistent mean?
    not the same
  • What would be the independent variable in a trial testing the effects of light exposure on sleep quality?
    light intensity
  • thermal energy is the energy of
    heat
  • Forces make objects
    start moving, stop moving, change speed, change direction
  • What is a dependent variable?
    the data that is collected (What happens BECAUSE of the independent variable). D in dependent = D in data
  • What is a force?
    a push or a pull
  • n an experiment testing plant growth under different light conditions, what is the dependent variable?
    growth rate
  • A researcher wants to find out how different types of exercise affect heart rate. What is the independent variable in this study?
    the type of exercise
  • As air is released from the balloon, which way will the balloon car move?
    west
  • What does decrease mean?
    go down
  • What does consistent mean?
    the same
  • Students are watering roses with different liquids to see which is most effective for plant growth. What is the independent variable in this experiment?
    liquid type
  • Equal or unequal: inconsistent amounts of force are applied to an object
    unequal
  • Students are timing how long it takes each type of sugar to dissolve. What is the dependent variable in this experiment?
    time to dissolve
  • What does remain mean?
    stay
  • If an object moves in the direction of the force at a different distance each time, it is
    unequal
  • Is this an example of equal or unequal force?
    equal
  • Answer the question in the picture.
    bottom right
  • Equal or unequal: consistent amounts of force are applied to an object
    equal
  • Students are timing how long it takes each type of sugar to dissolve. What is the independent variable in this experiment?
    type of sugar
  • mechanical energy is the energy of
    motion
  • Is this an example of equal or unequal force?
    unequal
  • True or false: If the force applied to an object is unequal each time, the amount of mechanical energy transferred is also unequal
    true
  • If an object moves in the direction of the force the same distance each time, it is
    equal
  • What does increase mean?
    go up
  • n a farming experiment, a scientist wants to see how different amounts of fertilizer affect the number of tomatoes grown on a plant. What is the dependent variable?
    the number of tomatoes grown
  • What is the independent variable, when studying the effect of study time on test score?
    study time
  • Is this an example of equal or unequal force?
    equal
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