physics test 4th quarter

Question 1

wrote principia

Answer 1

isaic newton

Question 2

force between masses

Answer 2

gravitational force

Question 3

weakest type of force

Answer 3

gravitational force

Question 4

force that holds the nucleus together

Answer 4

strong

Question 5

what happens to gravity when the objects that are being attracted to each other move away from each other

Answer 5

it decreases

Question 6

equasion newtons second law of motion

Answer 6

F=ma

Question 7

force of kinetic friction

Answer 7

Fkf=MkFn

Question 8

what direction is friction compared to motion

Answer 8

opposite

Question 9

what is a force

Answer 9

any push or pull on an object

Question 10

an object in motion tends to stay in motion and in object at rest tends to stay at rest

Answer 10

law of inertia

Question 11

for every action there is an equal and opposite reaction

Answer 11

newtons first law of motion

Question 12

a drawing that shows all of the forces acting on an object

Answer 12

free body diagram

Question 13

force that makes equilibriam

Answer 13

equilibriant

Question 14

objects mass at rest

Answer 14

inertial

Question 15

created the laws of planetary motion

Answer 15

johannes kepler

Question 16

found value of G

Answer 16

cavendish

Question 17

when a equilibrium that occurs when a body is not accelerating

Answer 17

translational equilibrium

Question 18

states that a vector may be applied to an object without changing its effect

Answer 18

principle of trancmissibility

Question 19

an object can be place on a sharp point below its____

Answer 19

center of gravity

Question 20

force is ______ proportional to acceleration

Answer 20

directly

Question 21

mass is_______ proportional to acceleration

Answer 21

inversely

Question 22

measure ment of force requried to accelerate a kilo gram by one meter per seconf

Answer 22

newton

Question 23

for normal surfaces static friction is ______ than kinetic friction

Answer 23

Larger

Question 24

force transmitted on a rope

Answer 24

tension

Question 25

an object is ____ if its center of mass falles outside of its base of support

Answer 25

unstable

Question 26

always occures in action reaction pairs

Answer 26

forces

Question 27

you can find an objects weight by _______ its weight by its rate of acceleration due to gravity

Answer 27

dividing

Question 28

the force an surface eserts on an objects weight

Answer 28

normal force

Question 29

define friction

Answer 29

friction is the resistance across a suurface that opposes motion

Question 30

define stable equilibrium

Answer 30

not easily tipped over

Question 31

define unstable equilibrium

Answer 31

easily tipped over