Unit 2 - Energy in Earth Science

Question 1

What is energy?

Answer 1

Energy is the ability to do work, make things move and cause change.

Question 2

What is thermal energy?

Answer 2

Thermal Energy is the energy of those moving particles that is felt as heat, and is the primary cause of atmospheric activity.

Question 3

What law of thermodynamics states that energy cannot be created or destroyed. It only changes form.

Answer 3

1st

Question 4

In which of the following states are particles of matter packed closest together? Solid, Liquid, or Gas?

Answer 4

Solid

Question 5

Heat transfer will always go from _______________ concentration to _______________ concentration

Answer 5

Higher; Lower

Question 6

What are the three methods of heat transfer?

Answer 6

Radiation; Convection; Conduction

Question 7

What is Radiation?

Answer 7

Radiation the transfer of heat energy through electromagnetic waves.

Question 8

What is Convection?

Answer 8

Convection is the transfer of heat energy that occurs in liquids and gases where material of warmer temperatures rises and cooler temperatures sink, forming a rotating cell called a convection current.

Question 9

What is Conduction?

Answer 9

Conduction is the transfer of heat energy that occurs when two objects are touching one another and have different temperatures.

Question 10

Name one wave on the electromagnetic spectrum.

Answer 10

Radio Waves; Microwaves; Infrared Waves; Visible Light Waves; Ultraviolet Waves; X - Ray Waves; Gamma Ray Waves

Question 11

Where might we find convection currents on Earth?

In the scale of the Earth

Answer 11

Mantle; atmosphere