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QB1 Remediation

Quiz by Emily Grady

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24 questions
Show answers
  • Q1
    When a pendulum is released, it swings back and forth. It will continue moving without any additional push until it is slowed by friction from the air around it. This illustration demonstrates three positions of a pendulum during its swing. At which point does the pendulum weight have the greatest amount of potential energy?
    Question Image
    Gravitational potential energy does not change.
    Position 1
    Position 2
    Position 3
    120s
  • Q2
    What is the Law of Conservation of Energy?
    Heating an object creates energy and cooling destroys energy .
    The total amount of energy on Earth is constant and is conserved over time.
    Energy can be created or destroyed, but never transformed.
    Energy can only be created when a force acts on an object.
    120s
  • Q3
    A delivery driver recorded the distance her van traveled each hour of her workday. Which statement describes the van’s motion during the time between 4 and 5 h?
    Question Image
    It was slowing down
    Its speed was increasing.
    It was not moving
    Its speed was constant
    120s
  • Q4
    Which of the following forces can act only when two objects are in contact with each other?
    Friction
    Gravitational
    Electrical
    Magnetic
    120s
  • Q5
    Some forces act at a distance. Other forces act only when two objects are in contact with each other. Which of the following forces can act across a distance?
    Drag
    Mechanical
    Friction
    Magnetic
    120s
  • Q6
    Which properties determine the force of gravity between two objects?
    Mass and volume
    Volume and distance
    Volume and density
    Mass and distance
    120s
  • Q7
    Two balls are falling from the same ledge. One ball falls straight down. The other ball is moving horizontally when it leaves the ledge. Which of the following statements describes the amount of time needed for the balls to reach the ground?
    Question Image
    The balls hit the ground at the same time because gravity is the only unbalanced force acting on them.
    The ball with more mass will hit the ground first because it experiences more acceleration due to gravity.
    The ball that is falling straight down from the ledge hits the ground first because it does not travel as far.
    The ball that is moving horizontally away from the ledge hits the ground first because it experiences acceleration in both directions.
    120s
  • Q8
    In 1895, German physicist Wilhelm Conrad Roentgen discovered x-rays. The drawing below shows an example of a chest x-ray of an adult human. What was the impact of Roentgen’s discovery on medicine?
    Question Image
    It led to new ways to treat viral illnesses such as influenza and smallpox.
    It helped doctors develop new ways to treat infections of the bone.
    It encourage more people to visit doctors after they became ill.
    It enabled doctors to make more accurate diagnoses than they could before.
    120s
  • Q9
    Scientists use spacecraft to study a variety of objects in space. What benefits do unmanned spacecraft provide to space scientists?
    Instruments never commit errors
    Instruments can replace analysis by human scientists.
    Instruments can be sent places humans cannot go.
    Instruments require more control over the environment than human spaceflight does
    120s
  • Q10
    Identifying the independent and dependent variables in an experiment will help you better interpret and convey results. What is the difference between the independent and dependent variables in an experiment?
    The independent variable is always a number, and the dependent variable is never a number
    The dependent variable is what the investigator controls, and the independent variable is what happens as a result of this
    The independent variable is what you control, and the dependent variable is what changes as a result.
    The dependent variable is typically found in the first column of a table, and the independent variable is typically found in the second column
    120s
  • Q11
    Scientists conduct many types of scientific investigations. Their efforts often include fieldwork, surveys, models, and experiments. Which statement about scientific investigations is NOT true?
    They often involve the collection of data under controlled conditions
    They may focus on comparing or describing the unregulated world.
    They follow exactly the same steps because there is only one scientific method
    They often include multiple trials to increase the consistency of data
    120s
  • Q12
    Renee rolls a steel ball down a ramp. She conducts multiple trials by releasing the ball from varying heights on the ramp. For each trial, she measures and records the release height of the ball and the distance the ball travels away from the ramp before falling to the ground. The figure below shows the experiment. In this experiment, which variable is the independent variable?
    Question Image
    Time it takes the ball to hit the ground.
    Distance traveled by the ball
    Height from which the ball is released
    Path of ball once it leaves the ramp
    120s
  • Q13
    Cindy hypothesizes that plastic foam insulates cold drinks better than metal or ceramic materials do. To test the hypothesis, she fills cups made from these materials with equal amounts of cold water. She records the temperature of the water in each cup, using scientific thermometers, every 10 minutes until the water reaches room temperature. Which of these conditions must be the same for this experiment to be valid?
    The material of each cup
    The ending temperature of the water in each cup.
    The starting temperature of the water in each cup
    The thermometer that is in each cup
    120s
  • Q14
    Ella paints three identical pieces of metal different colors. She then makes sure they are the same temperature and places them near each other in direct sunlight for 30 minutes. She records temperature data in a table. Based on the procedure and the data, which explanation tells why the temperatures are not the same?
    Question Image
    Each color absorbs a different amount of heat energy
    The mass of each sample varies, which affects heat absorption
    The temperatures of the metal pieces vary at the beginning of the experiment
    A different amount of sunlight strikes each piece of metal.
    120s
  • Q15
    Scientific investigations include many different steps. Which step in a scientific investigation can result in the need for a new hypothesis?
    Identify variables
    Analyze data
    Follow a procedure
    Plan the experiment
    120s

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