This is the amount of work being done when you are holding a stack of books
What is none?
100
There are six types of these machines.
What is simple machines?
100
There are two balls of equal mass sitting at different heights on a shelf, this one has more gravitational potential energy.
What is the higher one?
100
This increases when you speed up the particles that make up an object.
What is kinetic energy, temp
200
This is a device that makes work easier.
What is a machine?
200
This type of motion is need to do work on an object.
What is Parallel?
200
This is the Mechanical Advantage of a pulley if your input force is 250N when lifting a 950N box.
What is 3.8?
200
This is an example of chemical potential energy.
What is food, gas, wood, ETC....
200
This is the flow of thermal energy from a hot object to a cooler one.
What is heat?
300
This is the ability to cause change.
What is energy?
300
This is the amount of work done when you push a refrigerator with a force of 100N a distance of 5m.
What is 500J
300
These are the three ways machines are useful.
What is increase speed, change direction of force, and increase force?
300
This is an example of an energy transfer from kinetic to potential energy.
What is throwing a projectile, swing, newtons cradle, ETC.....
300
These are the ways thermal energy is transferred.
What is conduction, convection, and radiation
400
This is the sum of the kinetic energy and potential energy of all the particles in an object.
What is thermal energy?
400
This is the amount of work needed to lift an object with a mass of 5kg a distance of 2m.
What is 98J
400
A stapler is an example of this>
What is 3rd class lever?
400
This is the amount of power you used when you transform 950J of chemical energy to mechanical energy over 5s.
What is 190W?
400
This is what is stated by the 2nd law of thermodynamics.
What is energy cannot spontaneously spread form cool to warm?
500
This is the study of the relationships between thermal energy, work, and heat.
What is thermodynamics?
500
The amount of work done when a crane lifts a crate from the ground vertically straight up through a certain distance, is equal to this.
What is weight of the crate times the distance traveled?
500
Suppose the efficiencies of two energy conversion devices are different and one of the devices has an efficiency of 100%. Given this information, This would be best concluded in the case of the other device.
What is energy output is less than energy input?
500
The kinetic energy from motion of a hockey puck is 20J this is the amount of energy needed to stop the puck.
What is 20J?
500
This object transfers heat from a cool area to and warm area.