Physics Questions: Velocity, Acceleration, Laws of Motion, Waves, Magnetism, Current and Potential Difference

PHYSICS QUESTIONS

TABLE OF CONTENTS
MAIN BODY..................................................................................................................................4
QUESTIONS...................................................................................................................................4
REFERENCES..............................................................................................................................22

MAIN BODY
QUESTIONS
1.1
Velocity define as the rate of change in the position which is respect to the reference frame and
time. velocity is identical to the provision of speed of objects and its motion direction.
Acceleration define as the rate in which the change of the velocity is done with respect to time
(Antonov, 2021).
VELOCITY ACCELERATION
Its nature is vector. It is also operate in vector nature.
Usually calculated with displacement Calculated with the velocity
Its formula and unit is displacement/time
And unit is meter per second (m/s).
Formula is velocity per time and unit is meter
per second square (m/s2)
Positive Generally negative
It generally ascertain that how rapidly the
object is moving and in what direction.
It ascertain as how quickly the velocity of the
object is changes within time.

Figure 1 velocity and acceleration
1.2

1st law of motion also considers as the “law of inertia” it states that when the body is at rest
or in a moving condition at the sustained speed in linear line, then it will keep in the rest or
moving position until and unless some external force act upon it.
example If ball is Rolling then it keep rolling until friction act upon it to stop it by external force
(Coelho, 2020).
Its implication is defining as object cannot begin, stop their direction by their own, it generally
requires the some force to act upon it. if cycle is moving suddenly if person stop paddling then
the cycle stop moving. It consists of the universe’s fundamental symmetry.
Figure 2 Law of inertia
2nd law of motion defines the connectivity between the object and acceleration. it states
that rate of time changes of body’s momentum is equivalent to the direction and magnitude of
the force which is imposed over it.
For an example if person is applying the force in pedalling then the cycle accelerated, as simply
by giving extra force to pedals it started moving fast.
Its implication is that acceleration only occurs when there is unbalanced force.