What is the name of the force produced by an engine that pushes a vehicle forward?
Thrust
The Force of the air that acts against the movement of an aircraft.
Drag
The upward pressure of air on an aircraft when it is flying.
Lift
The downward pull of gravity.
Weight
How fast something is moving, measured as the distance travelled in a unit of time.
Speed
Speed of travel in a given direction.
Velocity
The increase of velocity in a unit of time.
Acceleration
Negative acceleration ( or the decrease of velocity in a unit of time)
Deceleration
A condition where forces are balanced.
Equilibrium
When a rocket takes off, ______________ occurs.
acceleration
A building is a good example of _______________.
Equilibrium.
One of the most important instruments in a car tells you the car´s_____________.
Speed
"The train is going 120 kilimeters per hour straight ahead". This is an example of__________.
Velocity
The stored energy an object has because of its position or state. A bicycle on top of a hill, a book held over your head, and a stretched spring all have______________.
Potential Energy
_______is the energy an object has due to its motion. As long as an object is moving at the same velocity, it will maintain the same _________. The ______of an object is calculated from the velocity and the mass of the object.
Kinetic energy.
