A
A diagram that shows all the forces acting on it
What is Free Body Diagram
When you push or pull and object
ex) The type of force if two forces act against each other
What is Opposing Force
How much matter an object contains
What is Mass
What primary force acting on a waterfall?
Gravity
A quantity that has both magnitude and motion
What is Vector
ex) The type of force you use to push a box
The type of force when you exert force on an object
What is Action Force
The force of gravity on an object
What is Weight
If you jump from a moving car, is your body still moving in the direction of the vehicle? Why?
Yes. When your feet hit the ground, the grounds act on your feet and they stop moving. You will fall because the upper part of your body didn't stop, and you will fall in the direction you were moving
The rate of which an object changes is velocity
What is Acceleration
The vector sum of all the forces that act upon an object
What is Net Force
The force that resists motion when the surface of an object comes in contact with another surface
What is Frictional Force
The mass of a body measured by its gravitational attraction for other bodies
What is Gravitational Mass
Do all objects have inertia?
All objects have inertia. Inertia is a force which brings all objects to a rest position.
The property of an object that resists change in its motion
What is Inertia
The type of force when an object exerts force on you
What is Reaction Force
The component of a contact force that is perpendicular to the surface that an object contacts
What is Normal Force
A mass parameter giving the inertial resistance to acceleration of the body when responding to all types of force
What is Inertial Mass
Examples of Newton's Second Law
-Pushing a box
-Hitting a ball
-Car crash
-Pushing a shopping car
-Etc. (anything with pushing another object)
An object at rest stays at rest and an object in motion stays in motion
What is Newton's First Law of Motion
The acceleration of an object is directly proportional to the net force and inversely proportional to its mass
What is Newton's Second Law of Motion
When two bodies interact, they apply forces to one another that are equal in magnitude and opposite in direction
What is Newton's Third Law of Motion
A point in a system that responds to external forces as if the total mass of the system were concentrated at this point
What is Center of Mass
What are the 3 laws of inertia
1. An object will not change its motion unless a force acts on it
2. The force on an object is equal to its mass times its acceleration
3. When two objects interact, they apply forces to each other of equal magnitude and opposite direction