3.1 - Energy Forms and Transformations

Question 1

Define energy.

Answer 1

Energy is the ability to do work

Question 2

What is chemical energy?

Answer 2

• A form of potential or stored energy
• Creates energy through the reaction of chemicals
  
  • Ex. Glucose in human use

Question 3

What is electrical energy?

Answer 3

• The energy of charged particles

- Transferred when electrons travel from place to place

Question 4

What is mechanical energy?

Answer 4

• Energy that comes from motion or an objects potential to move

Question 5

What is thermal energy?

Answer 5

• The total kinetic energy of particles in a substance

- The faster a particle moves, the more kinetic energy it has

Question 6

True or False:

Most devices use only 1 type of energy.

Answer 6

False. Because there are various devices that are used for different purposes, these devices use different forms of energy.

Question 7

What is the Law of Conservation of Energy?

Answer 7

The Law of Conservation of Energy: Energy is neither created nor destroyed, it just changes form.
- Various devices can be used to transform energy

Question 8

What is a thermocouple? What does it consist of?

Answer 8

A thermocouple is a device that converts heat energy into electrical energy. It consists of two different metals that conduct heat at different rates.