100 200 400 300 400 pendulumslifeboatsplane senseflippers 300 200 400 200 100 500 100 bonus
TRANSCRIPT
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True
True or False: The weight and release
position of the pendulum has no effect
on the number of swings.
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Shorten the string
If you wanted to increase the number of times a pendulum could
swing in 15 seconds, you would?
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Weight, Release Position, and Length of string
What were the variables that we tested during the
Swingers Experiment?
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Potential energy
What type of energy does the pendulum
have before it is released?
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Slower: the longer the string, the slower the swing.
If I had a string that was 200cm long, would
my pendulum swing faster or slower in 15
seconds?
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True or False:Scientific knowledge is
absolute truth?
False, it is based on observations and experiments.
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What variables did we test with during our Lifeboats
Experiment?
Boat capacity and passenger placement
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Finding the volume in milliliters is the best
way to do what?
Measure the capacity of a lifeboat (cup)
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True or False:A boat with a capacity of 50ml will have a greater passenger
load than a boat with a capacityof 25 ml.
True: the greater capacity of the boat, the more passengers it will hold.
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What is a variable?
Anything that you can change in an experiment that might affect the
outcome.
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The distance a wind up plane would travel could
best be measuredwith what?
A measuring tape or meter stick (yard stick)
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True or false: The smaller the weight added to the plane, the shorter the
Flight.
False, the smaller the weight added to the plane, the longer the flight.
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The force that keeps humans as well as other objects at or
near the ground is called _______?
Gravity
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What is friction?
Friction is due to the rubbing of objects and it slows things down.
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Objects in motion can be changed because of forces like:
___________ and ____________
friction and gravity
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Joe recorded the number of birds in his garden on Thursday morning and the number of birds that were in his
garden on Tuesday night. He concluded that there were always more birds in his
garden in the morning. Do you agree with Joe’s conclusion?
No, because he did not record any other days of the week.
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A ________ makes a catapult work.
A lever.
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A ______ lets you use yourown weight to help lift an
object.
A pulley
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What is a controlledexperiment?
An experiment in which only one variable is changed, or tested while
everything else is kept the same (controlled).
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When does an object that hasbeen released from a flipper
have energy of motion ?A.When you place it on the flipper.B.When you push the flipper down.
C.When you let go of the flipper.
(C) The object has energy of motion right after you release it into the air.
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Why do pendulums eventually stop moving?
Friction and Air Resistance
BONUS QUESTION