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Jeopardy First LawSecondThird Action/ Reaction Rockets Q $100 Q $200 Q $300 Q $400 Q $500 Q $100 Q $200 Q $300 Q $400 Q $500 Final Jeopardy
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$100 Question from H1 What will cause an object to move?
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$100 Answer from H1 An unbalanced force
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$200 Question from H1 If an object is already moving, in the absence of outside forces, what will the object do?
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$200 Answer from H1 It will continue moving with the same velocity
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$300 Question from H1 On Earth what are unbalanced forces that often change an objects motion?
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$300 Answer from H1 Gravity and friction
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$400 Question from H1 What 2 factors affect acceleration?
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$400 Answer from H1 Force and mass
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$500 Question from H1 What is Newton’s First Law of Motion also called?
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$500 Answer from H1 The Law of Inertia
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$100 Question from H2 What happens to passengers on a train When it stops quickly?
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$100 Answer from H2 They want to keep moving
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$200 Question from H2 What is inertia?
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$200 Answer from H2 An object’s tendency to resist a change in motion
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$300 Question from H2 How can I increase acceleration of a sled?
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$300 Answer from H2 Answers will vary
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$400 Question from H2 A measure of an object’s _______, is a measure of the object’s inertia.
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$400 Answer from H2 motion
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$500 Question from H2 What is the force required for the following Circumstances? A water-skier with a mass of 55kg who is accelerating at a rate of 2.0m/s²
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$500 Answer from H2 110 newton’s
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$100 Question from H3 For every action there is what?
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$100 Answer from H3 An equal but opposite reaction
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$200 Question from H3 What is the force exerted by a baseball compared to the force exerted by a bat used to hit it?
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$200 Answer from H3 It is equal to the force exerted by the bat
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$300 Question from H3 The force that causes an object to move in a circle is called what?
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$300 Answer from H3 Centripetal force
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$400 Question from H3 For every action force there is a what?
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$400 Answer from H3 Reaction force
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$500 Question from H3 When a gymnast does a flip, he pushes down on the vaulting horse. What is the reaction force here?
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$500 Answer from H3 The vaulting horse pushing him back
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$100 Question from H4 When you jump Your feet pushing on the ground is what kind of force?
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$100 Answer from H4 An action force
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$200 Question from H4 When you jump what is the reaction force?
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$200 Answer from H4 The ground pushing back on your feet
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$300 Question from H4 Why don’t action-reaction forces cancel each other out?
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$300 Answer from H4 They are acting on different objects
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$400 Question from H4 What are the main forces acting on passengers during a roller coaster ride?
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$400 Answer from H4 Gravity and acceleration
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$500 Question from H4 How do you determine momentum of a moving object?
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$500 Answer from H4 By multiplying the objects mass and velocity
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$100 Question from H5 The law of conservation of momentum states that the total momentum of objects that interact does what?
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$100 Answer from H5 Does not change
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$200 Question from H5 What must you know to determine an objects momentum?
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$200 Answer from H5 It’s mass and velocity
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$300 Question from H5 Why can a rocket take-off?
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$300 Answer from H5 Because the gases it expels with a downward action force exert an equal but opposite reaction force on the rocket
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$400 Question from H5 Satellites in orbit around Earth continuously do what?
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$400 Answer from H5 Fall toward Earth
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$500 Question from H5 How does gravity help keep satellites in orbit?
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$500 Answer from H5 Gravity provides the centripetal force
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Final Jeopardy Does a satellite require fuel once it is in orbit? Why?
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Final Jeopardy Answer No, Inertia and the force of gravity keep the satellite in orbit
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