Pretend you are a teacher preparing a quiz for the text I will provide. 
            Each quiz question should follow the format below. 
            Ensure that you carefully recheck the questions and answers for accuracy. 
            The output should be a ready-to-use list of dictionaries for the Python eval function:

            [

                    "question": "WRITE THE QUESTION HERE",
                    "options": ["A) OPTION_1", "B) OPTION_2", "C) OPTION_3", "D) OPTION_4"],
                    "answer": INDEX_OF_CORRECT_ANSWER_IN_OPTIONS_LIST,
                    "explanation": "EXPLAIN WHY THE ANSWER IS CORRECT"

            ]

            Text:
            ies and randomization (different velocities).
It occurs in high speeds.

The continuity equation: 


Force.First law of newton.Second law of newton.Third law of newton.
Lecture 10: force and newtons laws of motion

Forces and newton's laws of motion.
The concept of forces and mass:
Force: is a push or a pull.
Notes:
Force is a vector quantity (has both magnitude and direction).
The direction of arrow gives the direction of the force, and the length is proportional to the strength or magnitude.
Mass is a scalar quantity (has magnitude only). 


Newton's first law of motion:
"an object continues in a state of rest or in motion at a constant velocity (constant speed in a constant direction), unless compelled to change that State by a net force.
Note:
Often, several forces act simultaneously on a body, and the net force is the Vector sum of all of them.
Inertia and mass:
Definition: inertia is the natural tendency of an object to remain at rest or in Motion at a constant velocity.
Definition: mass of an object is a quantitative measure of inertia.
SI unit of inertia and mass: Kilogram (Kg).
Newton's third law:
"Whenever an object exerts a force on a second object, the second object exerts an oppositely directed force of equal magnitude on the first object. 
 
Normal force:
Definition: the normal force FN is the force that a surface exerts on an object with which it is in contact, and its direction is perpendicular to the surface. 
Frictional force:
Definition: frictional force is a force acting on the object when the object moves or attempts to move along the surface. 
 
Note:
Direction of frictional force is parallel to the surface and opposing the direction of motion.
Tension force:
Definition: forces are applied by means of cables or ropes that are used to pull an object.
Equilibrium:
Definition: an object is in equilibrium when it has zero acceleration.
Note:
a= zero
according to newton's second law 
∑Fx= zero
∑Fy= zero
∑F = zero
Mechanical Advantage of Levers
Levers are normally used to make physical work easier, to move something that is heavy, or to move something quickly. When we exercise most of our movements will involve the use of levers. For example, when we run, lift weights, kick or throw a ball, all of these actions will involve the use of levers. A lever system within the body would use a lever (bone) to move an object, for example, when we run we are the object being moved, but when kicking a ball, the object being moved is the ball.

Second Class Lever
A second class lever is a lever in which the load is between fulcrum and force, The fulcrum is at one end of the lever. The fulcrum is usually closer to the load, The closer the load is to the fulcrum, the easier the load is to lift, think of a wheelbarrow the long handles of a wheel barrow are really the long arms of a lever.
Third Class Lever
A third-class lever is a lever in which the force is between fulcrum and load. The mechanical advantage of a 3rd class lever is always les

            Quiz: