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Teams
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5
×
The force that pulls objects towards the center of the Earth at 9.8 m/s/s.
Gravity
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10
×
An object that is in free fall reaches terminal velocity when __________________.
Gravity and air resistance equal each other.
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15
×
Momentum is a characteristic that is dependent upon _______ and ___________.
Mass and velocity.
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20
×
Why does a persons weight change when they visit the moon?
Because the gravitational field changes.
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25
×
What force is applied to two people that each mass 150 kg a piece and are in free fall.
2,940 N
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20
×
How can someone reduce the amount of friction encountered by two objects surfaces?
Apply lubrication; e.g. lotion, butter, oil, grease, etc.
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banana
Go to last place!
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star
Double points!
Okay!
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fairy
Take points!
5
10
15
20
25
×
lifesaver
Give 20 points!
Oops!
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thief
Give points!
5
10
15
20
25
×
magnet
Take 10 points!
Okay!
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shark
Other team loses 25 points!
Okay!
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baam
Lose 25 points!
Oops!
5
×
List the four types of friction.
Fluid, rolling, static, and sliding.
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10
×
Which of Newton's Laws are represented in the following: A cat pounces on a ball and is knocked backwards.
3rd Law
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15
×
What are some differences between a balanced and an unbalanced force?
A balanced produces no motion and the net force is zero. An unbalanced force produces motion and the net force is greater than zero.
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20
×
Anything thrown or shot through the air is considered a(n) ______________.
Projectile.
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25
×
Calculate the time it takes for an apple to fall from a tree if the initial velocity is 45 m/s before it hits the ground.
4.59 or 4.6 sec
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5
×
Which of Newton's Law states that the force applied to an object and the mass of the object determines the acceleration of the object?
2nd Law
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heart
Other team wins 20 points!
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shark
Other team loses 10 points!
Okay!
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rocket
Go to first place!
Okay!
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lifesaver
Give 25 points!
Oops!
15
×
An object will experience no motion when the net force calculated is _____________.
zero
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