science etst 2/27 Flashcards
More force means __________ acceleration.
more
momentum
the product of an object’s mass and acceleration
the product of an object’s mass and acceleration
The amount of force needed to make an object change its velocity depends on the mass of the object and the acceleration required.
What is the mathematical equation that represents Newton’s 2nd law?
What is the mathematical equation that represents Newton’s 2nd law?
More mass means __________ acceleration.
less
2 factors that determine the level of gravitational force
mass and disance
More mass means _________ gravity
more
More distance means _________ gravity.
less
Which factor has the greatest influence on gravity?
distance
free fall
motion of an object when gravity is the only force acting on it
What causes terminal velocity?
when air resistance is equal to an object’s weight
Newton’s 3rd Law of Motion
For every action (or force) there is an equal and opposite reaction(or force).
acceleration
the rate of change in velocity
velocity
the speed and direction of an object
mass
the ammount of matter in an object
terminal
the greatest velocity a falling object reaches
horizontal
velocity parallel to Earth’s surface
centripetal
the force on an object pulling toward the center of a circular path
Two objects with the same velocity are moving in the same _______________.
direction
What is the SI unit for force?
Newton
What is the symbol for Newtons?
N
Who stated the Law of Universal Gravitation?
Isaac Newton
At what rate do all falling objects accelerate?
At what rate do all falling objects accelerate?
9.8 m/sec^2
