Three fundamental properties correct answersMass
Length
Time
Mass correct answersthe amount of matter or "physical substance" which an object or group of objects possesses
Length correct answersthe distance between two points in space
time correct answersthe period or interval between tw...
PHYS 1010 - Exam 1
Three fundamental properties correct answersMass
Length
Time
Mass correct answersthe amount of matter or "physical substance" which an object or group of objects possesses
Length correct answersthe distance between two points in space
time correct answersthe period or interval between two events
Unit of mass correct answersthe kilogram
*on the earth, 1 kg has a weight of 9.8 newtons. this is approximately 2.2 lb.
Unit of length correct answersthe meter
*1 m is approximately 3.28 ft
1 m = 100 cm 1 km = 1000 m
unit of time correct answersthe second
*60s = 1 min etc
Speed correct answersthe rate at which someone or thing is able to move or operate
V=D/t
equation for speed correct answersV=D/t
V=speed D=distance
t=time
velocity correct answersthe speed of something in a given direction
3 ways to change velocity correct answers1- changing speed
2- changing the direction
3- changing the direction AND speed
acceleration correct answersincrease in the rate or speed of something; basically how quickly velocity changes (change in speed, acceleration, direction)
equation for acceleration correct answersa=v/t
a=acceleration
v=velocity
t=time interval
Newton's 1st law of motion correct answersan object at rest stays at rest and an object in motion stays in
motion with the same speed and in the same direction unless acted upon by an unbalanced force
Newton's 2nd law of motion correct answersthe acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object
equation for Newton's 2nd law correct answersA=F/m
A=acceleration
f=force
m=mass
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