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4 questions
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  • Q1
    If a homemade roller coaster model starts at a height of 8 feet, which of the hills below would cause the roller coaster to stop?
    A hill that goes up to 3 feet.
    A hill that goes up to 8.5 feet.
    A hill that goes up to 5 feet.
    A hill that goes up to 7 feet.
    60s
    MS-PS2-2
  • Q2
    Juan's roller coaster has a loop at the end, and each time he rolls the marble down the coaster-the marble slows down and falls off without completing the loop. What might be the problem with Juan's roller coaster?
    His roller coaster needs more hills or turns before the loop,
    His roller coaster needs to take away kinetic energy from the marble to make it get through the loop.
    His roller coaster could use less hills and turns before the loop.
    60s
    MS-PS2-2
  • Q3
    If you have a bowling ball (7 kg) traveling at 5 m/s and a bowling ball (8 kg) traveling at 3 m/s, which one has the most kinetic energy?
    The ball with less mass, 7 kg, has more energy because it is traveling fast enough to give it more energy than the 8 kg ball.
    The 8 kg ball has more kinetic energy because it is traveling slower than the other ball.
    The 8 kg ball has more kinetic energy because it's bigger.
    60s
    MS-PS2-2
  • Q4
    A skydiver whose mass is 100 kg and a skydiver whose mass is 80 kg jump out of a plane at 10,000 feet above the earth's surface. Which skydiver would have the most potential energy?
    The skydiver whose mass is 100 kg has the most potential energy because he has more mass than the other skydiver, and the force of gravity and height are the same.
    The skydiver with less mass has the most potential, because he would travel faster.
    They both have the same potential energy because the height of the jump is the same
    60s
    MS-PS2-2

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