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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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5
×
The force that pulls objects towards the center of the Earth at 9.8 m/s/s.
Gravity
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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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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 three laws explains why a gun recoils?
3rd
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banana
Go to last place!
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×
gold
Win 50 points!
Okay!
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fairy
Take points!
5
10
15
20
25
×
baam
Lose 5 points!
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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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15
×
An object will experience no motion when the net force calculated is _____________.
zero
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20
×
Anything thrown or shot through the air is considered a(n) ______________.
Projectile.
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5
×
Another name for Newton's First Law is the Law of ________________.
Inertia.
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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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trap
No points!
Oops!
×
gold
Win 50 points!
Okay!
×
rocket
Go to first place!
Okay!
×
lifesaver
Give 15 points!
Oops!
25
×
Calculate the acceleration due to gravity on Pluto if a robot has a mass of 175kg and a weight of 950 N.
5.42 m/s/s
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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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×
heart
Other team wins 5 points!
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rocket
Go to first place!
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fairy
Take points!
5
10
15
20
25
×
baam
Lose 25 points!
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15
×
Momentum is a characteristic that is dependent upon _______ and ___________.
Mass and velocity.
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