Essential Questions
What is the difference between mass and weight?
Weight is the gravitational force on an object and mass is how much matter an object has.
An action that can change the motion of an object.
Force
The unit used to measure force.
Newton
Who made the 3 Law's of Newton?
Sir Isaac Newton
The transfer of energy when an applied force moves an object over a distance.
What is the relationship between mass and force?
F=ma
The combination of all of the forces acting on an object.
Net force
The act or process of changing position or place.
Motion
What year was the 3 Laws of Newton made in?
1687
The amount of matter in an object.
Mass
How can work be made easier and more efficient?
By changing the direction of a force
Forces that are opposite in direction and equal in size, cause no change in motion, and the net force equals 0.
Balanced Force
Found by dividing the change in velocity of the object by the change in time.
Acceleration
An object at rest will stay at rest unless acted upon by an unbalanced force.
Newton's 1st Law
The tendency of an object to resist a change in motion.
Inertia
Why does your hand hurt after punching a wall when you are the object applying force?
The wall also exerts an equal and opposite force reaction on us
Forces that are not opposite and equal.
Unbalanced Force
A measure of speed in a given direction.
Velocity
Forces occur as equal and opposite pairs.
Newton's 3rd Law
Machines that work with 1 movement
Simple Machines
How can each of Newton's 3 Laws be applied to everyday life? (demonstration we went over in class)
A ball rolling on a flat surface will keep rolling until met with an outside force (in this case, a desk)
A force between any 2 objects
Gravitational Force
Mechanical Advantage
The number of times a machine multiplies the effort force.
Newton's 2nd Law
The acceleration "A" of an object is directly related to the net force "F" applied to the object and inversely related to the "M" of an object. (F=ma)
Occurs when the force of air resistance because large enough or balances the force of gravity
Terminal Velocity