Potential Energy
The energy an object has due to its position or state, waiting to do work.
What is potential energy?
The property of matter that resists changes in its state of motion.
What is inertia?
The famous equation that defines Newton's Second Law.
what is F=MA (force equals mass times Acceleration)?
For every action, there is an equal and opposite __________.
reaction
The energy an object possesses due to its motion.
What is kinetic energy?
The specific type of potential energy from an object's height above the ground.
What is gravitational potential energy?
Another name for Newton's First Law.
What is the Law of Inertia?
Acceleration is directly proportional to the net force and inversely proportional to this property of an object.
What is mass?
What does Newton's Third Law state about forces?
Forces occur in equal and opposite pairs.
A moving car, a flowing river, a spinning top.
What are examples of kinetic energy?
A stretched or compressed spring stores this kind of energy.
What is elastic potential energy?
An object in motion stays in motion, and an object at rest stays at rest, unless acted upon by this.
What is an unbalanced/external force?
If an object has no net force acting on it, its acceleration will be zero, meaning it's at rest or moving at this constant velocity.
What is a constant velocity?
Action-reaction forces always act on __________ bodies (same/different).
different
A person typing on a keyboard or a bird flying.
What are examples of kinetic energy?
Energy stored in chemical bonds, like in food or batteries.
What is chemical potential energy?
For an object to change its motion (accelerate), it must be acted upon by this.
What is a net force/unbalanced force?
The unit of force, named after the same physicist, is derived from this law.
What is the Newton (N)?
A jet engine pushes air backward, and the air pushes the jet _______.
Forward (or pushes the engine forward).
These two properties of an object determine its kinetic energy.
What are mass and velocity (or speed)?
The SI unit used to measure potential energy, also used for kinetic energy.
What is a Joule?
A state where an object is at rest or moving at a constant velocity with zero net force.
What is equilibrium (or zero net force)?
Pushing harder on your bike's pedals causes your bike to do this.
What is accelerate?
This law explains how rockets and swimming propel themselves through a fluid.
Newton's Third Law of Motion.
If you double the speed of a moving object, its kinetic energy increases by this factor.
what is four times (2squared)?