Physical science

momentum

what quantity of motion is defined as the product of an object’s mass and velocity

Aristole

whose teaching dominated scientift thought for almost two thousand years?

Sir Issac Newton

who discovered the laws of motion and gravitation laying the foundation for much of modern physical science

Joule

what is the SI unit of work

pulley

what is the simple machine consisting of a wheel over which a rope or cable passes

what is the ideal mechanical advantage of an inclinied plane with a length of 3.0m and a hieght of 1.5m

2.0

Terminal velocity

what is the velocity at which air resistance stops a falling object from accelerating

Vector

what is any mathmatical quantity that has both magnitude and direction

9N to the left

a crate was being pushed to the left by one person with a force of 35N and to the right by another person with a force of 26N. what is the net force acting on the crate

F=MA (35)

what is the momentum of a 5kg bowling ball rolling forward at 7m/s

frame of refrence

what is the space relative to which a motion is measured

classical physics

together the branches of physics discoereved before 1900 are called

Resultant

the sum of two or more vectors is the

pendulum

an object that hangs from a fixed point and swings back and forth because of gravity is a pendulum

speed

the distance an object travels per unit of time is

efficiency

efficency

centripetal force

the center-seeking force that causes an object to ravel in a curved path is called

wedge

the simple machine which is like an inclined plane that modifies the applied force and directs it to the side is the

F=MA

what is the formula for newtons second law of motion

d=1/2gt(2)

what formula shows the relationship between free-fall distance and the acceleration of gravity

FW=MG

what is the formula used to find the weight of an ojbect found using newtons second law of gravity

V=d/t

what is the formula used to measure how quickly an object moves

P=MV

What is the formula used to find the momentum of an object

W=FD

what is the formula used for calculating energy transferred from one object to another by force

work is the transfer of energy

what ist he relationship between work and energy

Newtons first law of motion

what principle states that the velocity of an object does not change unless the object is acted upon by an external force

newtons third law of motion

what principle states that for every action there is an equal and opposite reaction

power

what is the rate of doing work

mechanical advantage

what is the term for a measure of how much help a machine provides

inclined plane

what smple machine is a sloping surface that allows an object to be raised without being lifted straight up

distance between two threads

what is the output distnce of a screw

displacement

what quantity represents any change in an objects positions

wheel and axle

which device is considered a circular lever and can be usd to multiply distance speed, or foce

gravitation force

which force is the attractive force that exists between any two bodies and is caused by their mass

multiplying force, multiplyong speed, or changing direction of force

what is a form of assistance that simple machine can provice

arrangment of input,output,and fulcrum

how are levers classified

static friction

what type of friction affects stationary objects preventing them from moving

mechanics

what branch of physics addresses the effects of forces on matter

scalar

what type of quantity consists of only a magnitude with no directions

watt

what SI unit is used to measure power

block and tackle

what is a combination of one or more fixed pulleys and one or more movable pullys called

acceleration

what term do physicists use to refer to any change in velocity

kinetic friction

what type of friction affects a sliding object alredy in motion

mechanics

what is the term for devices used to multiply force for the purpouse of doing work

dynamics

what is the study of motion and forces

IMA 2(pie)R/P

give the forula for the ideal mechanical advantage of a screw

FKF=MkFw

give the formula for the magnitude of kinetic friction force

P=w/t

give the formula for the rate of doing work

H=Wo/Wi

give the formula for the measure of how well a machine converts input into output work

IMA Di/Do

give the formula for the general formual for mechanical advantage under ideal conidionts

137m + (-39m)=98n

What is the total displacement of a person who walked 137m north and then 39m south

D=1/2gt(2)

how far will an object fall if it is affect by only gravity and falls for 3.0s

FKF=27n

A cardboard box weighing 90N is pushed across a hardwood flor the coeffcient of kinetic friction for carboard on wood is 0.30 what is the minimum force that must be applied to keep the box moving