WorksheetsMEQ01 General Principle
Total questions: 9
Worksheet time: 3mins
"A particle originally at rest, or moving in a straight line with constant velocity, tends to remain in this state provided the particle is not subjected to an unbalanced force" is
Newton's Law of Motion I
Newton's Law of Motion II
Newton's Law of Motion III
"A particle acted upon by an unbalanced force F experiences an acceleration a that has the same direction as the force and a magnitude that is directly proportional to the force" is
Newton's Law of Motion I
Newton's Law of Motion II
Newton's Law of Motion III
According to Newton's Law of Motion III, the mutual forces of action and reaction between two particles are
inequal
equal
opposite
composite
collinear
Basic quantities in mechanics are
Length
Time
Mass
Electric
Health
Models or idealizations used in mechanics are
Particle
Ideal Body
Rigid Body
Concentrated Detergent
Concentrated Force
Systems of units used both in SI and FPS
meter
foot
second
kilogram
slug
Where s is the position in meters, m; t is time in seconds, s; v is velocity in m/s; and a is acceleration in m/s², equations below are dimensionally homogeneous, except
s = v⋅t +½⋅a⋅t²
a = 2⋅s⋅t² - 2⋅v/t
s = v/t +½⋅a⋅t²
a = 2⋅s/t² - 2⋅v/t
Three significant figures of 23400 is
23.4⋅10³
234⋅10²
2340⋅10¹
23400⋅10⁰
50 mN ⋅ 6 GN =
30 kN²
300 kN²
30 MN²
300 MN²
