Types Of Forces
A force that keeps solid objects from passing through each other.
What is Normal Force?
He established that every object in a state of uniform motion will remain in that state of motion unless an external force acts on it
Who was Isaac Newton?
What force does this demonstrate?
A cup sitting on a table.
Example of Normal Force
Objects at rest will stay at rest, and objects in motion will stay in motion unless acted upon by an external force.
What is Newton's 1st Law?
An action exerted on an object in order to change the object’s state of rest or motion. (A push or pull.)
What is Force?
The attraction of bodies on Earth. Objects are attracted to the Earth’s surface.
What is Gravitational Force?
He said that an object in a state of motion possesses an inertia that causes it to remain in that state of motion unless an external force acts on it.
Who was Descartes?
What force does this demonstrate?
An apple falling from a tree.
Example of Gravitational Force
States that force = mass x acceleration.
What is Newton's 2nd Law?
An object's tendency to resist a change in motion.
What is Inertia?
The force generated by two surfaces that contact and slide against each other.
What is Frictional Force?
Was one of the first people to introduce the idea that gravity existed not just on Earth. Also created the word inertia.
Who was Johannes Kepler?
What force does this demonstrate?
Applying brakes to stop a moving vehicle.
Example of Frictional Force?
For every action (force) in nature there is an equal and opposite reaction.
What is Newton's 3rd Law?
When two forces are the same strength but act in opposite directions. Results in constant or no acceleration.
What are Balanced Forces?
The pulling or moving force in a given direction.
What is Applied Force?
He said that all bodies accelerate at the same rate regardless of their mass or size.
Who was Galileo?
What force does this demonstrate?
Pushing a cup off of a table.
Example of Applied Force
Another name for Newton's First Law.
Law of Inertia
When forces of different strength act in opposite directions.
What are Unbalanced Forces?
A frictional force that air pushes against a moving object.
What is Air Resistance?
Who was Aristotle?
What force does this demonstrate?
A deployed parachute slowing someone down.
Example of Air Resistance
He created Newton's Laws of Motion.
Who was Isaac Newton?
The force by which a planet or other body draws objects toward its center.
What is Gravity?