1. Force and Interactions
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Bill Arcuri, WCSD

2. JEOPARDY!
Newton’s 1st Law
Newton’s 2nd Law
Newton’s 3rd Law
Electricity
Magnetism
Gravity
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3. An object at rest remains at rest and an object in motion remains in motion unless an ________ acts on it
Outside force
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4. ____________ is an example of this law (a body at rest)
Pull table cloth out from under dishes
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5. _________ is an example of this law ( a body in motion)
Drop a ball as you run by into a target
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6. _________ is an example of an outside force
Push or pull
Running into something
Friction
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7. Is also know as the Law of ____________
Inertia
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8. States that a change in _________ only occurs if there is a net force on the object
motion
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9. The equation that represents this law
F= mXa
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10. In the Picture below, which cart needs more force to accelerate
Full Cart
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11. The unit we measure force in
Newtons
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12. If you throw a .5kg baseball at 20 m/s2, what is the force?
10 N
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13. For every action there is an equal but_________ reaction
Opposite
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14. When a swimmer pushes off a wall, the swimmer exerts the ______ force
Action
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15. When a rocket blasts off into space, the Earth exerts the _____ force
Reaction
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16. If I pull 2 balls back on the Newtonian Demonstrator, __ balls will move off the other side
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17. If two teams in a tug of war pull on the rope with the same force, but in opposite directions, what can you say bout the net force on the rope?
Net force would be 0
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18. __________ charges are attracted to each other
opposite
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19. Rubbing a balloon on my hair, or my clothes banging into each other in the dryer is an example of
Charging by contact
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20. Which kind of circuit is pictured below
Daily Double!!!
Which kind of circuit is pictured below
Series
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21. When my charged balloon sticks to the wall this is known as
Charging by Induction
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22. PARALLEL ELECTRICAL CIRCUIT
What is this called?
PARALLEL ELECTRICAL CIRCUIT
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23. In magnets, _______ poles repel
Like
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24. What three elements are magnetic?
Iron, Cobalt, Nickel
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25. The space around a magnet is called
Magnetic field
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26. The magnetic field created by wrapping a wire around an iron core and adding current is called
Electromagnet
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27. How can you increase the strength of a magnetic field
Daily Double!!!
How can you increase the strength of a magnetic field
Increase coils around iron core, OR increase power into the magnet
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28. True or False The force of gravity exists between all objects in the universe.
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29. Which of the following impacts the force of gravity A. mass B. color C
Which of the following impacts the force of gravity A. mass B. color C. distance D. mass and distance
D. Mass and distance
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30. When an objects mass increases, the force of gravity ____________
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31. When the distance between objects increases the force of gravity__________
Decreases
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32. What is the force of gravity on Earth. A. About 10 m/s2 B
What is the force of gravity on Earth? A. About 10 m/s2 B. About 20 m/s2 C. 0 m/s2 D. Depends on the weight of the object
About 10 m/s2
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