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15
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A snow plow uncovered 100 miles of road in 4 hours . What was the average speed of the plow? (speed = distance divided by time)
25 mph
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15
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Forces that produce a nonzero net force, which changes an object's motion:
unbalanced force
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thief
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25
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shark
Other team loses 10 points!
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rocket
Go to first place!
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lifesaver
Give 25 points!
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15
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Which best represents a unit for speed? Meters
m/sec
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thief
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25
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gift
Win 20 points!
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shark
Other team loses 20 points!
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banana
Go to last place!
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15
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What is an example of an unbalanced force?
a book laying on the desk
an alligator sleeping in the sun
a boy jumping off his bike
a cat sitting on a chair
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15
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A force that one surface exerts on another when the two surfaces rub against each other and causes objects to slow down or stop.
friction
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15
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A boy rides a skate board down a hill. Eventually the skate board stops. Which is most responsible for causing the skateboard to stop?
friction acting on the skateboard
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15
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How does the mass of an object affect acceleration?
The greater the mass of an object the smaller the force nee
The greater the mass of an object the greater the force nee
the smaller the mass of an object the greater the force need
none of the above
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seesaw
Swap points!
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shark
Other team loses 10 points!
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rocket
Go to first place!
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thief
Give points!
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15
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25
15
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Jose Altuve is at batting practice for the Houston Astros. What was the average speed of the baseball for his third hit as it traveled in the air?
32 m/sec
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15
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How does a wagons motion change when additional force is applied?
as force increases, acceleration increases
as forces increases, the wagon's mass changes
as forces increases, the wagon direction changes
as force increases, acceleration decreases
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15
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What is the formula for average speed?
Average Speed = Total Distance ÷ Total Time
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15
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A unit of measure for force is called:
Newtons
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15
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A book falls off the desk. What moves the book towards the floor?
gravity
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15
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Equal forces acting on an object in opposite directions; object will not move:
balanced force
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