PHYS 1010 - Exam 1with correct |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
answers
Three fundamental properties - correct answer✔✔Mass
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
Length
Time
Mass - correct answer✔✔the amount of matter or "physical substance" which an object or
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
group of objects possesses |||\\\ |||\\\ |||\\\
Length - correct answer✔✔the distance between two points in space
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
time - correct answer✔✔the period or interval between two events
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
Unit of mass - correct answer✔✔the kilogram
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
*on the earth, 1 kg has a weight of 9.8 newtons. this is approximately 2.2 lb.
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
Unit of length - correct answer✔✔the meter
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
*1 m is approximately 3.28 ft
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\
1 m = 100 cm
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\
1 km = 1000 m
|||\\\ |||\\\ |||\\\ |||\\\
unit of time - correct answer✔✔the second
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
*60s = 1 min etc |||\\\ |||\\\ |||\\\ |||\\\
Speed - correct answer✔✔the rate at which someone or thing is able to move or operate
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
, V=D/t
equation for speed - correct answer✔✔V=D/t |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
V=speed
D=distance
t=time
velocity - correct answer✔✔the speed of something in a given direction
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
3 ways to change velocity - correct answer✔✔1- changing speed
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
2- changing the direction
|||\\\ |||\\\ |||\\\
3- changing the direction AND speed
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\
acceleration - correct answer✔✔increase in the rate or speed of something; basically how |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
quickly velocity changes (change in speed, acceleration, direction)
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
equation for acceleration - correct answer✔✔a=v/t |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
a=acceleration
v=velocity
t=time interval |||\\\
Newton's 1st law of motion - correct answer✔✔an 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 answer✔✔the 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
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
answers
Three fundamental properties - correct answer✔✔Mass
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
Length
Time
Mass - correct answer✔✔the amount of matter or "physical substance" which an object or
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
group of objects possesses |||\\\ |||\\\ |||\\\
Length - correct answer✔✔the distance between two points in space
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
time - correct answer✔✔the period or interval between two events
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
Unit of mass - correct answer✔✔the kilogram
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
*on the earth, 1 kg has a weight of 9.8 newtons. this is approximately 2.2 lb.
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
Unit of length - correct answer✔✔the meter
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
*1 m is approximately 3.28 ft
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\
1 m = 100 cm
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\
1 km = 1000 m
|||\\\ |||\\\ |||\\\ |||\\\
unit of time - correct answer✔✔the second
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
*60s = 1 min etc |||\\\ |||\\\ |||\\\ |||\\\
Speed - correct answer✔✔the rate at which someone or thing is able to move or operate
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
, V=D/t
equation for speed - correct answer✔✔V=D/t |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
V=speed
D=distance
t=time
velocity - correct answer✔✔the speed of something in a given direction
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
3 ways to change velocity - correct answer✔✔1- changing speed
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
2- changing the direction
|||\\\ |||\\\ |||\\\
3- changing the direction AND speed
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\
acceleration - correct answer✔✔increase in the rate or speed of something; basically how |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
quickly velocity changes (change in speed, acceleration, direction)
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
equation for acceleration - correct answer✔✔a=v/t |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
a=acceleration
v=velocity
t=time interval |||\\\
Newton's 1st law of motion - correct answer✔✔an 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 answer✔✔the 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
|||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\ |||\\\
