Show:
Energy
Work
Work & Machines
Work & Machines
Thermal Energy
100
Energy an object has because of its motion.
What is kinetic energy?
100
The transfer of energy that occurs when a force moves an object.
What is work?
100
A device that makes work easier.
What is a machine?
100
The work done by you on the machine.
What is the output work?
100
The measure of the average kinetic energy of the particles in the object.
What is temperature?
200
Stored energy an object has due to its position.
What is potential energy?
200
The SI unit for energy and work.
What is the joule?
200
The force that is applied to the machine.
What is the input force?
200
The work done by the machine.
What is output work?
200
Thermal energy that flows from something at a higher temperature to something at a lower temperature.
What is heat?
300
Energy stored in chemical bonds
What is chemical potential energy?
300
This is transferred when work is done.
What is energy?
300
The force that is applied by the machine.
What is the output force?
300
This causes some of the energy to be turned into thermal energy.
What is friction?
300
Heat transfer that requires direct contact and is more common in solids such as metals.
What is conduction?
400
Energy stored by an object that is compressed or stretched.
What is elastic potential energy?
400
From the object that is doing work to the object on which work is done.
What is the direction energy is transferred?
400
1. Increase the force. 2. Increase the distance over which the force is applied. 3. Change the direction of the applied force.
What are 3 ways machines make work easier?
400
The measure of how much of the work put into a machine is transferred into useful output work by the machine.
What is efficiency?
400
The type of heat transfer that occurs in fluids.
What is convection?
500
Energy stored by an object due to its position above the Earth's surface.
What is gravitational potential energy?
500
1. The applied force must move the object 2. The object must move in the same direction as the applied force.
What are the two things required for work to be done?
500
The ratio of the output force to the input force.
What is mechanical advantage?
500
A machine the has an efficiency of 100%.
What is an ideal/perfect machine?
500
The transfer of energy through electromagnetic waves that does not require matter.
What is radiation?