Vocabulary words
Gravitational force exerted on an object.
Weight
Acceleration towards the center of a curved or circular path is called
centripetal acceleration
States that when one object exerts a force on a second object, the second object exerts
Newton third law of motion
What are types of frictions?
static, sliding, and rolling friction
True of false
Are weight and mass the same?
False
Attractive force between two objects that depends on the masses of the objects and the distance between them.
Gravity
What’s different about throwing a ball as hard as you can and tossing it gently?
States that's an object moving at a constant velocity keeps moving at that velocity unless an unbalanced force acts on it.
Newton first law of motion
When a wheel rolls over an object, what type of friction is that?
rolling friction
Gravity is also
long-range force
A region of space in which every point has a physical quantity, such as a force.
Field
So in order to break the microwelds and move one surface over another, what must be applied?
force
States that the acceleration of an object is in the same direction as the net force on the object, and that the acceleration equals the net force divided by its mass.
Newton second law of motion
Air resistance acts in the________ to that of the object motion.
opposite direction
Anything that has mass is attracted by the force of gravity.
The law of gravitation
Sum of all the forces that are acting on an object.
net force
True or false
If no resistance is present however, all these objects would fall at the same time.
true
What is the formula for Newton's second law for acceleration
acceleration=net force/ mass or a = f/m
is between two surfaces that are not moving past each other
static friction
Gravity is one of
4 basic forces
Describes the fall of an object which only the force of gravity is acting.
free fall
For any object, _____the force that’s applied to it ______the acceleration will be.
greater
Newton’s Second Law of motion describes how
forces, mass, and acceleration are connected.
Is the force that opposes the motion of two surfaces sliding past each other.
sliding friction
The other basic forces
electromagnetic force, the strong nuclear force, and the weak nuclear force