11. Energy

Question 1

Define and Encode Energy

Answer 1

The quantitative expression of the ability to do work. Energy can be transferred inside an object or between an object. Energy can also be used, stored, or even transferred.

Question 2

What are the 5 few types of energy that was discussed by Mr. Shockley? Encode.

Answer 2

1. Chemical Energy
2. Nuclear Energy
3. Electrical Energy
4. Thermal Energy
5. Mechanical Energy

Question 3

Define and Encode Potential Energy

Answer 3

Potential energy is one of the two types of mechanical energy stored by springs called Elastic Potential Energy (The unit for EPE is Joules). Elastic potential energy is affected more by the stretch distance than the spring constant; therefore, if k is doubled then EPE is doubled, but if x is doubled then EPE is quadrupled.

Question 4

What is the equation for Elastic Potential Energy (EPE)?

Answer 4

EPE = 1/2kx^2

Question 5

Define and Encode Kinetic Energy

Answer 5

Kinetic energy is a type of mechanical energy that moving objects have. Kinetic energy is affected more by velocity; therefore, if m is doubled then KE is doubled, but if v is doubled then KE is quadrupled (The units of KE is Joules).

Question 6

Define Gravitational Potential Energy and Encode.

Answer 6

The other type of stored mechanical energy.

Question 7

What is the equation for GPE? Encode.

Answer 7

GPE = mgh

Question 8

What is the Equation for KE? Encode.

Answer 8

KE = 1/2mv^2