Science Olympiad Study Hovercraft Question Preview (ID: 35876)


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How much is one Newton worth?
a) 1.00 N = 0.25 lbs.
b) 1.00 N = 0.255 lbs.
c) 1.00 N = 0.225 lbs.
d) 1.00 N = 25 lbs.

What is the ratio of force and weight to move an object at a certain speed?
a) net F = Mass /Acceleration
b) net F = Mass x Acceleration
c) net F = Mass + Acceleration
d) net F = Mass - Acceleration

What is the equation for impulse?
a) net F x Period over which force is applied = impulse experienced
b) Speed x Period over which force is applied = impulse experienced
c) net F + Period over which force is applied = impulse experienced
d) net F / Period over which force is applied = impulse experienced

What is Newton's third Law?
a) An object in motion will remain in motion unless a greater force acts upon it
b)
c) F = M x A
d) When one body exerts a force on a second body, the second body simultaneously exerts a force equal in magnitude and opposite

For years, space travel was believed to be impossible because there was nothing that rockets could push off of in space in order to provide the propulsion necessary to accelerate. This inability of a rocket to provide propulsion is because ...
a) space is void of air so the rockets have nothing to push off of.
b) gravity is absent in space.
c) space is void of air and so there is no air resistance in space.
d) nonsense! Rockets do accelerate in space and have been able to do so for a long time.

An engineer is designing the runway for an airport. Of the planes that will use the airport, the lowest acceleration rate is likely to be 3 m/s2. The takeoff speed for this plane will be 65 m/s. What is the minimum distance of a track?
a) 80 meters
b) 47 meters
c)
d)

h
a) n
b)
c)
d) h

h
a) n
b)
c) h
d)

nh
a) hn
b) nh
c)
d)

nh
a) nh
b)
c)
d) nh

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