Work/Energy 1
Work/Energy 2
Work/Energy 3
Work/Energy 4
Work/Energy 5
100
This unit measures energy.
What is a joule. (j)
100
This is type of energy that an object has due to its position or motion.
What is mechanical energy.
100
Is sound energy kinetic or potential?
Kinetic-sound is produced by objects vibrating through a medium.
100
_______ charges repel and _________ charges attract.
Like, unlike
100
This is the ability to do work or bring about change.
What is energy.
200
This energy is related to temperature and occurs because atoms are always in motion.
What is heat/thermal energy.
200
This type of energy is carried by sounds waves.
What is sound energy.
200
This is the transfer of energy that results in motion.
What is work.
200
This energy is carried by light and other electromagnetic waves.
What is light energy.
200
This type of energy is stored in the chemical bonds that hold a molecule together.
What is chemical energy.
300
This is force x distance.
What is work.
300
How do you know if a machine is efficient?
It makes the job easier.
300
These are the 2 charges that are present in electrical energy.
Protons (+) and Electrons (-)
300
This law states that energy cannot be created or destroyed, only transferred.
What is the first law of thermodynamics
300
This is the input force times the input distance.
What is input work.
400
This is the energy an object has because of its MOTION.
What is kinetic energy.
400
This is the force YOU exert on a machine.
What is the input force.
400
This is the output force times the output distance.
What is output work.
400
This is the force the MACHINE exerts on an object.
What is the output force.
400
This is the STORED energy an object has.
What is potential energy.
500
Machines can change these 3 factors that make work easier
What is direction, distance, and amount of force.
500
This type of energy is found in the nuclei of atoms.
What is nuclear/atomic energy.
500
This is a device that allows you to do work in a way that is easier or more effective.
What is a machine.
500
What are the 2 ways you can turn the potential energy of nuclear/atomic energy into KINETIC energy?
Split the nucleus or join together 2 nuclei
500
This is the # of times a machine increases a force exerted on it.
What is mechanical advantage.
M
e
n
u