Science Topic 3

Question 1

the ability to do work

Answer 1

energy

Question 2

energy comes in forms including

Answer 2

electricity, light, sound

Question 3

an object is in motion if…

Answer 3

it’s position changes compared to other objects

Question 4

a force is..

Answer 4

a push or a pull

Question 5

work is done anytime you ____ _____ on an object that causes the object to change it’s _______ in the same _______ in which you exert the ______.

Answer 5

exert force, motion, direction, force

Question 6

rate at which work is done & it equals to the amount of work in a unit of time

Answer 6

power

Question 7

force x distance

Answer 7

work

Question 8

work/distance

Answer 8

force

Question 9

work/time or force x distance/time or energy transferred/ time

Answer 9

power

Question 10

the energy that an object possesses because of being in motion

Answer 10

kinetic energy

Question 11

depends on both its speed and mass, the faster an object moves the more ____ ____ it has, increases as mass increases

Answer 11

factors affecting kinetic energy

Question 12

kinetic energy of an object depends on both its _____ and its ____

Answer 12

speed, mass

Question 13

the faster an object moves the more ______ _______ it has

Answer 13

kinetic energy

Question 14

kinetic energy also _______ as mass _______

Answer 14

increases and increases

Question 15

1/2 x mass x speed

Answer 15

kinetic energy

Question 16

potential energy is _____ energy

Answer 16

stored

Question 17

potential energy can turn into ______ _______-

Answer 17

kinetic energy

Question 18

potential energy held by an object bc of its high position compared to a lower position

Answer 18

gravitational energy

Question 19

energy stored as a result of applying a force to deform an elastic object. the energy is stored until the force is removed and its object springs back to its original shape doing work in the process

Answer 19

elastic potential energy

Question 20

elastic potential energy is stored until the force is _________ and the object springs back to its original shape

Answer 20

removed

Question 21

examples of elastic energy

Answer 21

spring, trampoline, rubber band, bow and arrow

Question 22

mechanical energy- the energy an object has due to its _____, ________, ___________, or a combination of these factors

Answer 22

motion, shape, position

Question 23

an objects mechanical energy equals the total of its ________ and ________ energy

Answer 23

kinetic, potential

Question 24

potential energy stored in the nucleus that can be released through a nuclear reaction

Answer 24

nuclear energy

Question 25

a nucleus splits into smaller fragments. When it breaks apart, it releases energy

Answer 25

fission

Question 26

small nuclei combine to form a larger nuclei

Answer 26

fusion

Question 27

the total potential and kinetic energy of particles in an object

Answer 27

thermal energy

Question 28

more particle movement means more kinetic energy which means a ______ temperature

Answer 28

higher

Question 29

the transfer of energy into the thermal energy of an object

Answer 29

heat

Question 30

the form of potential energy bc it results from the compared position of the particles within a material. the particles held in those positions by __________ bonds. when these bonds are broken, energy is ________.

Answer 30

chemical energy, chemical, released

Question 31

the energy of _____ changes, different materials and particles can have different charges. these differences in charge can lead to the movement of electoral charge, a type on kinetic energy called _________.

Answer 31

electoral energy or electricity

Question 32

electromagnetic radiation

Answer 32

a form of kinetic energy that travels through space in waves

Question 33

potential energy

Answer 33

nuclear and chemical

Question 34

(kinetic energy)

Answer 34

electromagnetic

Question 35

both potential and kinetic energy

Answer 35

mechanical, thermal, electrical

Question 36

energy transferrmations occur when

Answer 36

one form of energy changes into another

Question 37

energy tranfermations can take place when

Answer 37

energy moves from one object to another

Question 38

the law of conservation of energy is when

Answer 38

one object looses energy other objects must gain it

Question 39

energy cannot be destroyed or created it is

Answer 39

conserved