Friction
Force that one surface exerts on another surface when surfaces come in contact with another
What is Friction
Push or pull exerted on an object. It is described by its strength and direction in which it acts.
What is Force
The state in which one object's distance from another object is getting closer or further apart. Described as distance, displacement, velocity, speed, acceleration, etc.
What is motion
In physics, this is known as the quantity of a measurement. Large or small.
What is Magnitude
An object at rest stays at rest and an object in motion stays in motion with the same velocity and in the same direction unless acted upon by an unbalanced force.
What is Newton's First Law(Inertia)
Occurs when two objects slide over each other. Example:sand on an icy sidewalk to improve footing, rubber brake pads rubbing on tire rim to slow a bike.
What is Sliding Friction
Equal forces acting on an object in opposite directions(no motion)
What is Balanced Forces
This is a vector quantity that describes how far an object moves from its original position.
What is displacement
The amount of matter in an object.
What is Mass
Explains behavior of an object. Acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object. As the force acting upon an object is increased, the acceleration of the object is increased. As the mass of an object is increased, the acceleration of the object is decreased.
What is Newton's second law
Comes into play when a body is forced to move along a surface but movement does not start(no motion)
What is Static Friction
Forces that produce a nonzero net force, which changes an objects motion(motion)
What is Unbalanced Forces
Speed in a given direction (speed with a direction).
What is velocity
Substances that occupy space and have mass.
What is Matter
For every action, there is an equal and opposite reaction.
What is Newton's third Law
When a body moves in a fluid or in air then there existst a resistive force which slows down the motion of the body. A freely falling skydiver feels a drag force due to air which acts in the upward direction or in a direction opposite to skydiver's motion
What is Fluid Friction
Determines if an object moves and in which direction
What is Net Force
The distance an object travels per unit of time.
What is speed
The basic SI unit for length.
What is Meter
A particle attracts every other particle in the universe using a force. The greater the mass, the greater the attraction. The greater the distance, the weaker the attraction.
What is Newton's Law of Universal Gravitation
Force that slows down the motion of a rolling object. Basically, it is a combination of various types of frictional forces at point of contact of wheel and ground or surface. When soft object moves over a hard surface then it's distortion makes it slow down.
What is rolling friction
In physics, this is the motion of a body moving through the atmosphere with gravity as the only force acting on the body.
What is Free Fall
Is when a moving object increases speed, decreases speed or changes direction.
What is acceleration
The force of gravity on an object at the surface of a planet or other heavenly body.
What is Weight
Developed laws of motion, theory of gravity and believed that comets sustained life on earth and other planets.
What is Sir Issac Newton(1642-1727)