Feel the Energy
potential, kinetic
Newton's 1st Law is also called...
The Law of Inertia
What is force?
A push or pull on an object.
If you were to push on a brick wall with 200N of force, how much force would the wall push back towards you?
200N
The amount of matter in an object.
Mass
This is the unit of measurement for energy.
Joules
What does Newton's 1st Law state?
An object at rest will remain at rest until acted on by an unbalanced force.
An object in motion will remain in motion until acted on by an unbalanced force.
What does Newton's 2nd Law state?
___________ happens when an ___________ force acts on a ___________.
For every action there is an equal and opposite reaction.
The change in velocity over time (speeding up, slowing down, or changing direction)
Acceleration
Kinetic energy is determined by two factors. What are they?
Mass and speed
What is inertia?
An object's resistance to change it's motion.
What is the equation used in Newton's 2nd Law?
Force=mass times acceleration (F=ma)
What is the reaction force if the action is pushing down on the ground to do a push-up?
The ground pushing up on you.
The resistance that one surface or object experiences when moving over another.
Friction
Potential energy is determined by two factors. What are they?
Mass and position off ground (height of object)
Bunny vs. Dog
Car vs. tractor trailer
Baby vs. Adult
How does adding mass to an object affect the distance it travels if the same force is being applied?
The more mass an object has, the less distance it will travel when the same force is applied.
Action force = using a bat to hit a baseball. What is the reaction?
Reaction force = The ball hitting the bat.
Causes a change in motion.
Unbalanced Force
Looking at the diagram, determine which points the roller coaster has: 1. the most potential energy and 2. the most kinetic energy.
1. Point Z
2. Point Y
Give an example of Newton's 1st Law.
A soccer ball is at rest until you kick it.
How does the amount of force applied to an object affect the distance the object travels?
The more force applied to an object, the greater distance it travels.
Give an example of Newton's 3rd Law.
Action = Swimming and pulling water backwards
Reaction = swimmer moving forwards
An object’s tendency to resist a change in its motion.
Inertia