Motion and Speed
Something that describes the location of an object.
What is position?
The rate at which velocity changes.
What is acceleration?
A push or pull. Its unit is newton (N).
What is a force? What is its SI unit?
A force of attraction between objects due to their masses.
What is gravity?
Any material that can flow and that takes the shape of its container.
What is a fluid?
Distance/time
What is the formula for calculating average speed?
(final velocity - starting velocity)/time
m/s^2
How is average acceleration calculated? What are the units for acceleration?
The combination of all the forces acting on an object.
What is a net force?
F=mg
What is the formula for force?
(When stating the answer the team must say what each letter means for the formula)
(Pa) or pascal
What is the SI unit for fluids?
A straight line between two points.
What is displacement?
Acceleration from small to large velocity.
What is positive acceleration?
An object at rest stays at rest, and an object in motion stays in motion at the same speed and direction, unless it experiences an unbalanced force.
What is newton's first law?
When gravity is pulling an object down and no other forces are acting on it.
What is a free fall?
The pressure caused by the weight of the atmosphere.
What is atmospheric pressure?
When it changes its position relative to a reference point. It is a change in position over time.
When is an object in motion?
Acceleration going from high to low velocity?
What is negative acceleration?
Whenever one object exerts a force on a second object, the second object exerts and equal and opposite force on the first.
What is Newton's third law?
This relates gravitational force, mass, and distance.
What is the law of universal gravitation?
An upward force that fluids exert on all matter.
What is the meaning of buoyant force?
(Note this question's answer is divided into two answers)
Answer 1: Speed in a specific direction
Answer 2: Depends on the total distance traveled along a path
What is velocity? What is average velocity?
Acceleration in a circular motion.
What is centripetal acceleration?
The acceleration of an object depends on the mass of the object and the amount of force applied.
What is Newton's second law?
When it travels around another object.
What is an orbit?
An objects ability to sink or float.
(formula: mass/volume)
What is density?