energy

Question 1

Energy

Answer 1

the ability to do work

Question 2

Potential energy

Answer 2

Energy an object has due to its shape or position/ stored energy/ heigh and potential energy both go up together

Question 3

Kinetic energy

Answer 3

The energy of motion

Question 4

Kinetic energy molecules/temp

Answer 4

As an object increases in temp, the molecules will move with more energy and faster

Question 5

PE and KE relationship

Answer 5

As PE decreases KE will increase

Question 6

electromagnetic energy

Answer 6

various forms of both visible and invisible light emitted by stars. Gamma rays to radio waves

Question 7

Wavelengths

Answer 7

Short wavelength: high energy
Long wavelengths: low energy

Question 8

Frequency

Answer 8

The number of waves that pass a given point in a given time. Wave length increase: frequency decrease
Wave lenth decrease: frequencey increases.

Question 9

Different elcotromagnetic waves

Answer 9

refracted(bent), reflected, scattered, transmitted(pass through), absorbed

Question 10

Absorbs more radiation

Answer 10

Darker colors, rougher surface

Question 11

reflects

Answer 11

light colors, smooth surface

Question 12

Insolation

Answer 12

incoming solar radiation. Measure of the solar radiation received on a given area in a given time. Usually in the form of visible light (UV + AR rays)

Question 13

Terretrail radiation

Answer 13

At night heat energy is re-radiated from the ground back to the atmosphere.

Question 14

Temperature

Answer 14

The average kinectic energy of the molecules of a substance. How fast molecules are moving.

Question 15

Absolute 0

Answer 15

0 K

Question 16

Water freezes/melts temp.

Answer 16

0 degrees celsius

Question 17

Water boils

Answer 17

100 degrees celsius

Question 18

Heat

Answer 18

Total energy of a substance. Measured with calories or joules. One calorie means the heat needed to raise the temp of one gram of liquid by one degree celsius.

Question 19

Transfer of energy

Answer 19

Heat energy will flow from an area of high concentration(source) to an area of low concentration(sink)

Question 20

Conduction

Answer 20

Direct contance molecules. Solids/especially metals

Question 21

Convection

Answer 21

Transfer of heat by molecules flowing due to differene in density (liquids and gases).

Question 22

Radiation

Answer 22

transfers by electromagnetic waves of energy (travel through gases, liquids and some solids

Question 23

specific heat

Answer 23

amount of joules required to raise the temp of one gram of that substance by one degree celsius

Question 24

high specific heat

Answer 24

Heat up and cool down: slowly
Needs a lot of heat energy added to raise the temp.

Question 25

Low specific heat

Answer 25

heat up and coold down quickly
needs just a little heat energy added to raise the temp

Question 26

Latent heat

Answer 26

amount of energy in the form of heat that is released or gained by a substance during a phase change. Latent means hidden. Heat that flows from/to a materials without change in temp. Heat will only change phase of material

Question 27

Melting

Answer 27

Solid to liquid.

Question 28

vaporiation

Answer 28

liquid/solid into gas

Question 29

condensation

Answer 29

water vapor turning into liquid water

Question 30

freezing

Answer 30

liquid to solid

Question 31

sublimation

Answer 31

when a solid turns directly into a gas/ heat added