Temperature and things
What is temperature?
Is water a good of bad conductor of thermal energy?
BAD
The units for work.
What are Joules?
Energy due to motion.
What is kinetic energy?
Units of power.
Something that does work with only one movement of the machine.
What is a simple machine?
The max efficiency of a machine.
What is 100%?
As the speed of particles in a substance increases, the thermal energy _____.
What is increases?
Defined as the study of the relationship between thermal energy, heat and work.
What is thermodynamics?
The equation for work.
What is force applied through a distance?
Energy stored due to interactions between objects.
What is potential energy?
Friction converts mechanical energy into what?
Thermal energy.
Wedges and levers are both examples of machines that do what?
The ratio of output work to input work. Measured as a percent
What is efficiency?
Defined as the energy required to raise the temperature of 1 kg of a substance 1 degree C.
What is specific heat?
The transfer of thermal energy due to collisions between particles that make up matter.
What is conduction?
A force of 8,000,000 N has been applied to a car and it moves 0.00 m. Has work been done?
The equation for kinetic energy.
What is
1/2mv^2
The sum of kinetic energy and potential energy in a system.
What is mechanical energy?
A combination of 2 or more simple machines.
What is a complex machine?
An example of a machine that increases the speed something travels.
What is a bicycle?
What is an internal combustion engine?
The transfer of thermal energy in a fluid by the movements of warmer and cooler fluids.
What is convection?
You apply a force of 9,000,000 N and a car moves 0.001 meters. Has work been done?
Yes.
Energy stored from stretching something.
What is elastic potential energy?
As a ball falls from the sky, its kinetic energy _____ and its gravitational potential energy _____.
What is increases, decreases?
The ratio of output force to input force.
What is mechanical advantage?
A household appliance that uses the transfer of thermal energy to create a cool environment.
What is refrigerator?
Something that is not a good conductor of thermal energy.
What is thermal insulator?
The units for force.
What are Newtons?
Energy due to the gravitational pull between objects.
What is gravitational potential energy?
Defined as the energy applied over a period of time.
What is power?
The 6 kinds of simple machine.
What are wheel and axle, lever, pully, incline plane, wedge and screw.
Efficiency can never be more than 100%, can mechanical advantage ever be more than 1?
Yes. explain...