Conservation of Energy

Question 1

What is Energy?

Answer 1

Energy is when change is caused in a system, different forms of energy. It can be transferred and transformed NOT removed.

Question 2

What are the two types of energy? Short definition

Answer 2

Kinetic Energy (Ek) - energy found in movement
Potential Energy (Ep) - stored energy that does work

Question 3

What are the 5 types of kinetic Energy? Describe each one

Answer 3

Mechanical - energy of motion larger than atoms
Radiant - radiates from a source
Thermal - energy of moving particles
Electrical - energy of moving electrons
Sound - vibrations of particles

Question 4

Provide an example of Mechanical, Radiant and Thermal energy

Answer 4

Mech - Rollercoaster, Bike, Bowling pins and ball
Radiant - Sun light
Thermal - Camp fire

Question 5

Provide an example of Electrical and Sound energy

Answer 5

Electrical - Powerlines
Sound - Drums

Question 6

What are the 6 types of Potential Energy?

Answer 6

Chemical - energy stored in chemical bonds
Gravitational - energy due to an objects position
Nuclear - energy stored within the nucleus
Elastic - energy stored that is stretched or compressed
Electrical Pot - separation of charge
Magnetic - stored without magnetic field

Question 7

Provide examples of Chemical, Gravitational and Nuclear

Answer 7

Chemical - bonds
Gravit. - Diving board
Nuclear - Nuclear bomb

Question 8

Provide examples of Elastic, Electrical and Magnetic potential

Answer 8

Elastic - Elastic band
Electrical - Pos/Neg
Magnetic - Magnets

Question 9

Kinetic Energy?

Answer 9

1. Speed : The faster something moves the greater the kinetic energy
2. The greater the mass of something the greater the kinetic energy
   Found in motion

Question 10

Potential Energy?

Answer 10

1. Amount of gravitational force
2. Height

Question 11

What is the Gravitational Acceleration?

Answer 11

9.8m/s

Question 12

What is Energy transformation?

Answer 12

An energy transformation is a change in the type of energy from one type to another. Considered unwanted and waste of energy

Question 13

What is the difference between Open, Closed and Isolated systems?

Answer 13

Open - matter and energy can be exchanged
Closed - only energy can be exchanged
Isolated - matter and energy CANNOT be exchanged

Question 14

What is the LAW OF CONSERVATION OF ENERGY!!

Answer 14

Energy is neither created nor destroyed but TRANSFORMED from one form of energy to another or Transferred from one object to another,

Question 15

Pookie you got this

Answer 15

Good luck!