Scenarios
You move 4 meters.
What is distance?
this force opposes all movement against another object.
What is friction?
A measure of the ability of a substance, or more generally of any physical system, to transfer heat energy to another physical system
What is temperature?
Energy of a moving object
What is Kinetic Energy?
I push a student.
What is a contact force?
A truck is headed west at 40 kph.
What is velocity?
distance/time=
What is speed?
energy possessed by an object or system due to the movement of particles within the object that result in heat
What is thermal energy?
the sum of all potential and kinetic energy
What is mechanical energy?
Three people of equal strength play tug-of-war.
What are unbalanced net forces?
Two people are pushing on opposite sides of a box and the box is not moving
What are balanced net forces?
a diagram showing the relation between variable quantities
What is a graph?
the transfer of heat due to the movement of molecules
Convection
a type of potential energy that comes from how an object is from the ground
What is Gravitational Energy?
An airplane is falling to the ground and is getting fast and faster.
What is positive acceleration?
A truck covers the same distance in the same time for over three hours.
What is constant speed?
the movement of thermal energy from a higher temperature object to a lower temperature object
What is heat transfer?
energy that comes from a source and travels through space and may be able to penetrate various materials
What is Radiation?
energy cannot be created or destroyed - it can only be transferred from one type to another
What is the Law of Conservation of Energy?
You stick your hand out of the window of a moving car and feel a force pushing your hand backward.
What is air resistance?
You use friction by applying the brakes on your bike and slow down.
What is negative acceleration?
constant x Mass1 x Mass2 / distance2
What is the Law of Gravity?
the process by which heat is directly transmitted through a substance when there is a difference of temperature
What is conduction?
a battery stores this kind of energy through a slow chemical reaction that produces electricity
What is potential energy?
A person covered in boogers is walking toward you are you are pushed backward with disgust.
What is a non contact force?