SCIENCE VOCAB UNIT 3

Question 1

a material through which thermal energy moves slowly

Answer 1

thermal insulator

Question 2

a region or set of regions around which a boundary can be defined

Answer 2

system

Question 3

ability to cause change(J)

Answer 3

energy

Question 4

amount of heat needed to raise temp of 1 kg to 1 degrees C,

Answer 4

specific heat

Question 5

energy a moving object has because of its motion, determined by mass and speed of object

Answer 5

kinetic energy

Question 6

energy carried by electromagnetic wave

Answer 6

radiant energy

Question 7

energy due to chemical bands

Answer 7

chemical potential energy

Question 8

energy stored by compressing or stretching an object

Answer 8

elastic potential energy

Question 9

energy that is due to gravitational force between objects

Answer 9

gravitational potential energy

Question 10

energy that is stored due to interaction between objects

Answer 10

potential energy

Question 11

energy that is transferred between objects due to a temperature difference between those objects

Answer 11

heat

Question 12

machine that does work with only one movement-lever, pully, wheel and axle, inclined plane, screw, wedge

Answer 12

simple machine

Question 13

machine that is a combination of 2+ simple machines

Answer 13

compound machine

Question 14

material such as copper wire through which electrons can move easily

Answer 14

conductor

Question 15

measure of average kinetic energy of all particles that make up an object

Answer 15

temperature

Question 16

rate at which energy is converted(watts)

Answer 16

power

Question 17

ratio of output force exerted by machine to input force applied to machine

Answer 17

mechanical advantage

Question 18

ratio of output work done by machine to input work done on machine expressed as %

Answer 18

efficiency

Question 19

states energy cant be created or destroyed

Answer 19

law of conservation of energy

Question 20

states energy spontaneously spreads from regions of higher concentration to regions of lower concentration

Answer 20

2nd law of thermodynamics

Question 21

states if mechanical energy of system is constant increase in thermal energy of system = sum of thermal energy transferred into work done as a system

Answer 21

1st law of thermodynamics

Question 22

study of relationship between thermal energy, heat, work

Answer 22

thermodynamics

Question 23

sum of kinetic and potential energy of particles that make up an object

Answer 23

thermal energy

Question 24

sum of potential energy and kinetic energy of objects in a system

Answer 24

mechanical energy

Question 25

transfer of energy by electromagnetic wave s

Answer 25

radiation

Question 26

transfer of energy when a force is applied after a distance(J)

Answer 26

work

Question 27

transfer of thermal energy by fluid by fluid of movement of warmer and cooler fluid from one place to another

Answer 27

convection