Glovers Final

Question 1

work and energy are interchangeable terms (t\f)

Answer 1

true

Question 2

absolute zero is 0 degrees celsius (t\f)

Answer 2

false

Question 3

electromagnetic energy can be radiated by matter and is also called radiant energy

Answer 3

false

Question 4

electrical energy is a type of mechanical energy

Answer 4

false

Question 5

in real life no energy transformation is 100%efficient

Answer 5

true

Question 6

what is the SI (metric) unit of measurement for energy

Answer 6

joule

Question 7

which is also referred toastier the “energy of position”

Answer 7

potential energy

Question 8

which is the formula for gravitational potential energy

Answer 8

GPE = w*h

Question 9

which type of energy is the average sum of the kinetic energies of all the particles in an object

Answer 9

thermal energy

Question 10

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

Answer 10

oscillation

Question 11

which type of energy uses the electrical charges in atoms

Answer 11

electrical energy

Question 12

which type of energy use the electromagnetic spectrum

Answer 12

thermal energy

Question 13

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

Answer 13

chemical energy

Question 14

which equation is associated with mass energy

Answer 14

E=mc2

Question 15

when small nuclei of atoms are smashed together it is called……

Answer 15

fusion

Question 16

which law of thermodynamics states that energy can nither be created nor destroyed only changed

Answer 16

frist law of thermodynamics

Question 17

what type of collision occurs when 2 objects collide and rebound whit no deformation

Answer 17

elastic colloision

Question 18

car accident is a good example of which type of collision

Answer 18

partially elastic collision

Question 19

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

Answer 19

linear momentum

Question 20

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

Answer 20

inelastic collision

Question 21

the operational definition of_______is the ability to do work

Answer 21

energy

Question 22

what type of energy is “ energy of motion”

Answer 22

kinetic energy

Question 23

list one of the differences between acoustic and thermal energy

Answer 23

acoustic- has to deal with sound

thermal- deals with heat

Question 24

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

Answer 24

nuclear energy

Question 25

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

Answer 25

fission

Question 26

what is the most abundant form of of potential energy in the universe

Answer 26

mass energy

Question 27

what does the law of conservation of energy state

Answer 27

it cannot be created or destroyed but in can be changed

Question 28

what is the formula for momentum

Answer 28

p=m*v

Question 29

works measured in watts (t\f)

Answer 29

false

Question 30

power is measured in watts (t\f)

Answer 30

true

Question 31

ideal mechanical advantage is a machines advantage under perfect conditions (t\f)

Answer 31

true

Question 32

nail clippers are an example of a third class level (t\f)

Answer 32

true

Question 33

in the US, bolts are classified by their thread count(t\f)

Answer 33

true

Question 34

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

Answer 34

mechanical work

Question 35

which is known as the rate of doing work

Answer 35

power

Question 36

the advantage that simple machines give us is known as:

Answer 36

mechanical advantage

Question 37

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

Answer 37

distance principle

Question 38

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

Answer 38

lever

Question 39

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

Answer 39

first class lever

Question 40

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

Answer 40

gear

Question 41

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

Answer 41

inclined plane

Question 42

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

Answer 42

screw

Question 43

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

Answer 43

screw

Question 44

what is the formula for work

Answer 44

w= f*d

Question 45

the pivot point of a lever

Answer 45

folkrum

Question 46

which simple machine is a disk that rotates around an axis ( on a car)

Answer 46

wheel

Question 47

give an example of a wedge

Answer 47

an axe

Question 48

give an example of a second class lever

Answer 48

Dollie

Question 49

a cylindrical screw with closely spaced threads are called......

Answer 49

bolts

Question 50

what is the formula for power

Answer 50

p=w/t

Question 51

changing the shape of a of a container will change the fluids pressure (t\f)

Answer 51

false

Question 52

E torricelli invented the mercury barometer (t\f)

Answer 52

true

Question 53

bernoulli's principle describes hoe the velocity and pressure of fluid change when flowing through different sized pipes(t\f)

Answer 53

true

Question 54

barometers are no longer useful (t\f)

Answer 54

false

Question 55

tsunameter are a practical example of using fluid pressure to solve a problem (t\f)

Answer 55

true

Question 56

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

Answer 56

fluids mechanics

Question 57

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

Answer 57

fluid pressure

Question 58

what is water pressure due to depth alone called (cht8 q10

Answer 58

hydrostatic pressure