The upward force exerted by a fluid on objects submerged in the fluid.
What is buoyancy
100
The inventors of the first airplane.
Who are Orvile and Wilber Wright.
100
Tendency of an object in motion to stay in motion.
What is inertia
100
Unit that describes force in the metric system.
What is Newton
200
Push on an airplane produced by engines
What is thrust
200
Wood floats in water because it is ____________ than water.
What is less dense
200
The first flight flew for _______________________.
What is 59 seconds.
200
States that the condition of an object will not change unless something causes it to change.
What is second law of motion.
200
Force exerted by a body on all other bodies.
What is gravity.
300
Caused by air resistance
What is drag
300
You can lower the density of a body by increasing its __________________.
What is volume
300
The pilot increased the drag on the left wing, the plane will turn_________________.
What is right
300
Resists the movement of one surface across another surface.
What is friction.
300
Property not affected by gravity.
What is mass
400
A parachute slows a falling object by increasing _________.
What is drag
400
An object that has a higher density than water will _____.
What is sink.
400
Balloon is to air escaping as rocket is to______________.
What is gases exiting the rocket
400
Because it exerts a pull, gravity is considered a ________.
What is force.
400
As an object moves farther from Earth's center, its weight ________________.
What is decreases
500
The effect of the shuttle engines firing is a stream of hot gases escaping from the engine nozzles at a very high speeds, At that time the space shuttle begins ascending. This is known as the ____________________.
What is reaction force.
500
The Greek scientist who discovered that when an object is submerged in water will displace, or push aside, a volume of water equal to its own volume.
Who is Archimedes
500
Salt water is _________________ than fresh water.
What is more dense.
500
Using the formula F=ma, calculate for force that would be needed to accelerate a ball with a mass of 6 kg by 20 m/s2.
What is F = m x a; F = 6 kg x 20 m/s2; F=120 kg x m/s2 or 120 N
500
Two things that affect falling objects are gravity and ________________.