science

Question 1

what is the si unit of measurment for energy

Answer 1

joule

Question 2

which is also referred to as the energy of postition

Answer 2

potential energy

Question 3

which is the formula for gravitional potentional energy

Answer 3

gpe=wxh

Question 4

what type of energy is the avergae sum of the kinetic energies of all the particles in an object

Answer 4

thermal energy

Question 5

which term refers to the repetitive back and forth motion that particles in acoustic energy travel in

Answer 5

oscillation

Question 6

which type of energy uses the electrical charges in atoms

Answer 6

electrical energy

Question 7

which type of energy uses the electromagnetic spectrum

Answer 7

magnetic energy

Question 8

which type of energy is found in the chemical bonds of compounds

Answer 8

chemical energy

Question 9

which equation is associated with mass energy

Answer 9

E=mc2

Question 10

when small nuclei of atoms are smashed together it is called

Answer 10

fussion

Question 11

which law of thermodynamics states that energy can neither be created nor destroyed only changed

Answer 11

first law of thermodynamics

Question 12

what type of collision occurs when two objects collide and rebound with no defromation

Answer 12

elastic collision

Question 13

a car acciden is a good example of which type of ollision

Answer 13

partially elastic collision

Question 14

which type of momentum describes a sytem moving on a straight path

Answer 14

linear momentum

Question 15

if two objects stick together after a collision then the collision is

Answer 15

inelastic collision

Question 16

the operation definition of blank is the ability to do work

Answer 16

energy

Question 17

what tpye of energy is energy of motion

Answer 17

kinectic

Question 18

list one of the diffrences between acoustic and thermal enrgy

Answer 18

one has to do with temperature and the other sound

Question 19

which type of energy is associated with the nucleus of an atom

Answer 19

nuclear energy

Question 20

which type of nuclear energy occurs when the nucleous of an atom is split apart

Answer 20

fision

Question 21

what is the abundant form of potential energy in the universe

Answer 21

mass energy

Question 22

what does the law of the conservation of energy state

Answer 22

energy can neither be created nor destroyed only changed`

Question 23

what is the formula for momentum

Answer 23

p=mxv

Question 24

what occurs when a force acts on an object to move it in a direction parallel to the force vector

Answer 24

mechincal work

Question 25

which is known as the rate of doing work

Answer 25

power

Question 26

the advantage that simple machines give us is known

Answer 26

mechincal advantage

Question 27

which principle states that to conserve work and energy simple machines compensate for a smaller effort force by exerting that force over a longer distance

Answer 27

distance principle

Question 28

which simple machine is a rigid bar that rests on a pivot point

Answer 28

lever

Question 29

which class of lever does the fulcum sit between the resistance and effort

Answer 29

first class lever

Question 30

which is a modified form of a wheel and axle and has notches or teeth around it

Answer 30

gear

Question 31

which is a wheel with a groove around its outer circumference mounted on an axle and a rope rests in the groove and moves with the pulley as it rotes

Answer 31

pulley

Question 32

which is a two dimensional titled surface that allows a resistance load to be moved from a lower postion to one that is higher with less effort than lifting vertically

Answer 32

inclined plane

Question 33

which is a fastener that exerts a large amount of force to hold objects together

Answer 33

screw

Question 34

what is the formula for work

Answer 34

w=dxf

Question 35

what is the point of a lever called

Answer 35

the fulcrum

Question 36

which simle machine is a disk that rotates around an axis

Answer 36

wheels

Question 37

a cylindrical screw with closely spaced threads are called

Answer 37

bolts

Question 38

what is formla for power

Answer 38

p=w/delta time

Question 39

what is the study of how fluid flow and how forces and energy are transmitted through fluids

Answer 39

fluid mechanics

Question 40

what property of fluids states that at a given point in a body of water the pressure is exerted equally in all directions

Answer 40

fluid pressure

Question 41

what is water pressure due to depth alone called

Answer 41

hydrostatic pressure

Question 42

what is the c shaped sealed tube dectector used in pressure sensing instrument called

Answer 42

bourban tube

Question 43

what is the science of transmissionof forces and energy by liqiuds

Answer 43

hydraulaics

Question 44

which principle describes the way that fluid flows around curved surfaces and is a principle that helps describe how aiplanes fly

Answer 44

coanada effect

Question 45

what law describes the inverse relationship between volume and temperature

Answer 45

charles law

Question 46

what barometer is smaller than the mecury barometer and contains a sealed accordion like can be filled with low pressure gas

Answer 46

aneroid barometer

Question 47

what is the formula for pressure

Answer 47

p=f/a

Question 48

what is the metric unit of measurment for fluid pressure

Answer 48

pasacals

Question 49

which principle states that an immersed object is lifted or buoyed up by a force equal to the weight of the fluid displaced

Answer 49

archimendas

Question 50

what is the study of thermal energy and heat and how they relate to other kinds of energy and work

Answer 50

thermodynamics

Question 51

who invented the steam engine and explained how it worked using the caloric theory

Answer 51

nicolas sadi carnot

Question 52

who helped to debunk the caloric theory by observing cannon boring methods

Answer 52

count rumsord

Question 53

what is the average sum of the kinetic energies of its particles

Answer 53

thermal energy

Question 54

which temperature scale sets waters freezing point at 32 degress and boiling at 212 degres

Answer 54

fahrenheit

Question 55

which temperature scale included absolute zero

Answer 55

kelvin

Question 56

what is the flow of thermal energy from one place to another

Answer 56

heat

Question 57

in which type of heat transfer is thermal energy carried from one location to another by a fluid

Answer 57

convection

Question 58

which type of heat transfuses electromagnetic energy

Answer 58

conduction

Question 59

what is term for the thermal energy in joules that an object must gain or lose to cause a temperature change of 1 degree C

Answer 59

heat capicty

Question 60

what is the name of the instrument used to measure transfers of thermal energy within its insulated chamber

Answer 60

calorimeter

Question 61

the amount of thermal energy exchanged per gram of material during melting or freezing is the material

Answer 61

laten heat of fusion

Question 62

the amount of thermal energy exchanged per gram of material going from liquid to gas or gas to liquid is the materials

Answer 62

latent heat of vaporization

Question 63

the blank theorys claimed that heat was a fluid and that explains how it was transferred from one objects to another

Answer 63

calvic

Question 64

the blank of a substance is directly related to the average kinetic energy of its atoms and molecules

Answer 64

temperature

Question 65

what is the temperature point at which all particles motion stops

Answer 65

absolute zero

Question 66

what is the formula to convert from Fahrenheit to Celsius

Answer 66

Tf=1.8c+32

Question 67

`how does the heat affect the viscosity of a fluid

Answer 67

it helps fluid flow so like in a car all that heat goes somewhere

Question 68

which type of heat transfer occurs through a hotter object touching a cooler object heating the cooler object

Answer 68

conduction