1. Basically

kinematics is the study of motion without considering the connecting forces. It

is used along with dynamics to calculate velocities, masses, momentum and

energy during collisions. Kinematics deals with any motion of any object

without considering the mass of each or the forces that caused the motion

(Brent, 2013).

2. Distance

is the length of the total path covered by a body in motion. Distance simply

means how far one point is from the other point or how far you have moved from

one position to the next. A scalar quantity is a one dimensional

measurement of a quantity and distance falls under this category. Distance

equals speed by time (Weidner, 1989).

3. Displacement

is a vector quantity meaning that it has more than one number associated

with it. A vector is a quantity that requires both magnitude and direction. Displacement

is the shortest distance between the initial and the final position. It is the

vector value of how far an object has been displaced; meaning how far is it

from where it started. Displacement

= (final position) – (initial position) = change in position. (Walden,

2015).

4. Distinguish

between distance and displacement – As mentioned before, distance is a scalar

quantity and displacement is a vector quantity. At first I was a bit confused

with what the difference is because both are so similar, however, in fact, they

are quite different. Distance is a scalar quantity that

refers to how much an object has covered during its motion as opposed to

displacement which is a vector quantity that

refers to how far out of place an object is, that is the object’s overall

change in position (Duncan, 1985).

5. Speed

is the distance travels per unit time, or the rate of change of distance with

respect to time. Speed is a measure of how quickly an object moves from one

place to another. It is equal to the distance traveled divided by the

time. Speed equals to distance divided by time (Weidner, 1989).

6. Velocity is

a vector quantity that

refers to the rate at which an object changes its position so when evaluating

the velocity of an object, one must keep track of direction. The velocity of an

object is its speed in a particular direction (Duncan, 1985). Velocity can also

be defined as rate of change of displacement or just as the rate of

displacement. Velocity is called a vector quantity because it involves both

speed and total displacement of the body from one time to another. The equation or formula for velocity is similar to speed. To figure out velocity, you divide the distance by the time it takes to travel

that same distance, then you add your direction to it (Walden, 2015).

7. Distinguish

between speed and velocity: Velocity is a vector quantity of a moving body is

its rate of displacement with respect to time. Speed is a scalar quantity

and is distance traveled per unit time. Speed is a steady speed, neither

speeding up not slowing down; velocity is constant speed and constant direction

(Brent, 2013).

8.

Acceleration is the rate at which

the velocity of an object changes. Basically, if an object is speeding up per a

given unit of time, it is said to be accelerating. For example, If a

car drives at a speed of 2 miles/hour in 1 second, then 4 miles/hour in another

second, then 6 miles/hour in the 3rd second, then the car is accelerating at a

constant pace every second, it goes at a speed that is 2 miles/hour faster than

the previous second. This is acceleration.

Acceleration is the change in the velocity, divided by the time (Duncan,

1985).

9. Acceleration

due to gravity – the acceleration which is gained by an object

because of gravitational force is called its acceleration due to gravity.

Gravity always acts vertically downwards on an object. Now if an object is

moving downwards gravity acts downwards on it as it should be and so gravity is

considered positive. Again if an object is moving upwards, the object acts

against gravity rather which is opposite to the usual, where gravity should act

on the object but this time the object is acting against gravity and so gravity

is considered to be negative (Weidner, 1989)

10. Distinguish

between freefall and non freefall – In Newtonian physics, free fall is any

motion of a body where gravity is the only force acting upon it. A body in free

fall has no force acting on it and it is only moving up and down and hence in

this case fall doesn’t only mean downwards. Free fall when an object falls

downward it experiences force of gravity. Non-free fall is when there is no air

resistance. During free fall, other forces like air resistance, which is

the friction due to air, do not affect the object’s motion. Example f a

freefall based on the definition would be a ball falling in a vacuum and a non

free fall example would be a ball falling through air (Walden, 2015).

11. Acceleration

of a freefalling object – Something is in free fall if gravity is the only

force acting on it. Acceleration in free fall is the rate of fall of an object.

It is measured by the force divided by mass of the object. Acceleration in free

falls occurs when no other force acts on the falling body except gravity

(Duncan, 1985).

References

Brent,

M. (2013, November). Introductory Physics I. Retrieved January 16, 2018, from

https://www.bing.com/ 2fintro_physics_1.pdf

Duncan, T., & O?nac?, D. T. (1985). Physics for the Caribbean: a CXC

course (2nd