vocab
Forms of energy
Energy transfers and transformations
Particles in motion
math skills
100
the ability to cause change
What is energy?
100
Name 3 examples of potential energy
What is nuclear energy, chemical energy, and gravitational potential energy?
100
when one form of energy changes into another form of energy.
What is energy transformation?
100
average kinetic energy of the particles that make up a material
What is temperature?
100
you hold a 65*C cup of hot cocoa. Your hand is 37*C and the outside temperature is 6*C. Describe the flow of thermal energy.
The thermal energy from the cocoa will transfer to the hand and the outside air until the cocoa reaches thermal equilibrium.
200
a disturbance that transfers energy from one place to another without transferring matter.
What is a wave?
200
This type of energy is considered kinetic because electrons moves in currents.
What is electric energy?
200
Not all energy is always used. This type of energy is often given off as a "waste" energy.
What is thermal energy?
200
According to _________, all matter is made of particles, those particles are in constant random motion, and the particles constantly collide with each other and with the walls of their container.
What is the kinetic molecular theory?
200
A child pulls a toy wagon with a force of 25N for a distance of 8.5m. How much work did the child do on the wagon?
What is 212.5 J?
300
process of energy moving from one object to another without changing form
What is an energy transfer?
300
This type of energy is carried by electromagnetic waves.
What is radiant energy?
300
This law states that energy can not be created or destroyed.
What is the law of conservation of energy?
300
Imagine a polar bear standing in the sun. How can the polar bear gain thermal energy is it is below freezing outside?
The Polar bear will gain thermal energy from the radiant energy from the sun.
300
A man pushes a box with a force of 75N across a 12M loading dock. How much work did he do on the box?
What is 900J?
400
transfer of energy that occurs when a force makes an object move in the direction of the force while the force is acting on the object
What is work?
400
This type of energy is carried in waves, but can only travel through matter.
What is sounds energy?
400
What type of energy is solar energy from the Sun?
What is radiant energy?
400
Imagine a seat belt. What part of the seat belt is the thermal conductor? thermal insulator?
thermal conductor =metal buckle thermal insulator = cloth belt
400
A child pushes a toy truck with a force of 5.6 N a distance of 3.5 m. How much work was exerted on the truck?
What is 20J?
500
movement of thermal energy from a region of higher temperature to a region of lower temperature.
What is heat?
500
Why does an airplane traveling from New York to California have both kinetic energy and potential energy?
It has potential energy because is has mass and height above Earth's surface (gravitational potential) and kinetic because it is in motion.
500
this includes wood, plants, and even manure and garbage, and can be transformed into electric energy in energy plants.
What is biomass?
500
Why would a metal pan need a plastic handle?
Plastic is a thermal insulator, and it does not get hot quickly. This allows a person to safely touch the handle of the pan without being burned.
500
A student pushed a book with a force of 8.5 newtons a distance of .3m. How much work was exerted on the book?
What is 2.6 J?