Bju Earth Science 4Th Edition Chapter 2 Part2

Front 1

boiling

Back 1

when vaporization happens so fast that liquid forms bubbles that rise through the liquid.

Front 2

sublimation

Back 2

occurs when a solid substance turns directly into a vapor without becoming a liquid first.

Front 3

mass

Back 3

the quantity of matter

Front 4

weight

Back 4

the gravitational attraction for an objects mass.

Front 5

volume

Back 5

the space an object occupies

Front 6

force

Back 6

a push or pull

Front 7

types of forces?

Back 7

field force and contact force

Front 8

field force

Back 8

act on objects separated by distance

Front 9

contact force

Back 9

when objects touch each other

Front 10

magnetic force

Back 10

exerted between magnets and magnetic materials, such as metal.

Front 11

electric force

Back 11

exerted between electrical charges

Front 12

gravity

Back 12

exerted by matter on other matter. Gives things weight

Front 13

energy

Back 13

the ability to do work. The force that acts on a object as it moves through a distance.

Front 14

kinetic energy

Back 14

a moving object- an objects kinetic energy depends much more on its speed than its mass

Front 15

potential energy

Back 15

when a force gives an object the potential to move. Depends on its mass and the distance it could fall

Front 16

thermal energy

Back 16

all objects have thermal energy which contains tiny particles in constant random motion

Front 17

sound energy

Back 17

produces by particles motion. When particles in matter vibrate repeatably back-and-forth in one direction.

Front 18

audible

Back 18

sound waves heard with the unaided ear

Front 19

Ultrasonic sound

Back 19

sound vibrations that are too fast to hear

Front 20

infrasonic sound

Back 20

vibrations to slow to hear (earthquake waves)

Front 21

electrical energy

Back 21

the ability to do work with electrical charges

Front 22

magnetic energy

Back 22

results from the motion of electrical charges. Work on magnetic material such as iron

Front 23

chemical energy

Back 23

particles in matter that form connections to each other

Front 24

light energy

Back 24

everything that gives off light

Front 25

nuclear energy

Back 25

when an atom is split, releasing nuclear energy

Front 26

conservation of energy

Back 26

energy never lost. It changes into other types of energy.

Front 27

First law of thermodynamics

Back 27

energy can not be created or destroyed, but can only be changed from one form to another

Front 28

atoms

Back 28

the smallest building block of matter

Front 29

ions

Back 29

atoms with more or fewer electrons than protons

Front 30

chemical element

Back 30

a pure substance made of one kind of atom

Front 31

compound

Back 31

atoms from one element that bond with atoms from other elements.

Front 32

molecules

Back 32

distinct particles formed by the combination of two or more atoms.