Pre-Final SET B

Question 1

study of motion

Answer 1

Mechanics

Question 2

A body in vertical motion where only gravity is acting on it.

Answer 2

Free Fall

Question 3

It could be an object thrown upward (positive initial velocity), thrown downward (negative initial velocity), or dropped (zero initial velocity).

Answer 3

Free Fall

Question 4

object thrown upward

Answer 4

Positive Initial Velocity

Question 5

object is thrown downward

Answer 5

Negative Initial Velocity

Question 6

when an object is dropped

Answer 6

Zero Initial Velocity

Question 7

What are the two Aristotelian Motion?

Answer 7

Natural and Violent Motion

Question 8

for Aristotle, objects that are not in their “natural place” moves so they can go back to their rightful place

Answer 8

Natural Motion

Question 9

a body will move and will return to its natural state based on the body’s nature and composition.

Answer 9

Natural Motion

Question 10

He also theorized that this motion is proportional to the object’s weight.

Answer 10

Natural Motion / Aristotelian Motion

Question 11

He believed that heavier objects fall faster than lighter ones. What motion is this?

Answer 11

Natural Motion / Aristotelian Motion

Question 12

The type of motion when a force is applied to an object to make it move. This can be a “push” or “pull”

Answer 12

Violent Motion

Question 13

This motion is not result for the objects nature, but rather by external forces acting on it.

Answer 13

Violent Motion

Question 14

a body moving in this motion needs an external force for it to move.

Answer 14

Violent Motion

Question 15

He believed that heavier objects fall faster than lighter one.

Answer 15

Aristotelian Motion

Question 16

He believed that objects will continue
undergoing violent motion for as long as
there are external forces that act on it.

Answer 16

Aristotelian Motion

Question 17

What is the only exception of Aristotle’s violent motion?

Answer 17

Celestial objects — whose natural state is always moving in a circular motion at a uniform speed

Question 18

Perfect non-Earth substances

Answer 18

Quintessence

Question 19

The motion when an object is moving in projectile motion

Answer 19

Impetus

Question 20

what keeps an object moving while seeking its “natural place”?

Answer 20

Impetus

Question 21

When the object is released, the initial force exerted to make an object move transfers to the medium that surrounds the object.

Answer 21

Impetus

Question 22

It is the force that makes an object move

Answer 22

Impetus

Question 23

The force that continues to push the projectile

Answer 23

Impetus

Question 24

What happens in the concept of impetus?

Answer 24

• The rate at which the object will move depends on the amount of impetus imparted.
• This impetus becomes weak as it resists the medium through which the object moves.

Question 25

A body or a particle in two-dimensional motion given an initial velocity and it moves along a curved path under the influence of gravity alone

Answer 25

Projectile

Question 26

What are the concepts under Aristotelian Motion?

Answer 26

- Natural Motion - Violent Motion - Impetus - Projectile

Question 27

His views of motion are supported by experimental evidence.

Answer 27

Galilean Motion

Question 28

Galileo believed that an object’s rate of fall is primarily influenced by what?

Answer 28

Gravity and Air Resistance

Question 29

His concept on motion is that external forces must act on an object at rest to make it move or an object in motion to make it stop moving.

Answer 29

Galileo

Question 30

He believed that objects in motion will keep on moving without the aid of an external force unless an opposite force acts to stop its movement.

Answer 30

Galileo

Question 31

What happens in the absence of air resistance?

Answer 31

two objects of varying masses would fall at the same rate.

Question 32

What did Galileo introduce?

Answer 32

Friction

Question 33

A contact force between a surface and an object that always acts opposite to the direction of an object's movement, causing it to slow down with time.

Answer 33

Friction

Question 34

What happens in friction?

Answer 34

Rougher surfaces tend to exert more friction than smoother surfaces

Question 35

How did Galileo prove that objects will stay in motion without an external force unless an opposite force acts to stop it?

Answer 35

He rolled a ball on an inclined plane

Question 36

What happens when a body is moving down an inclined plane?

Answer 36

its acceleration increases the same value after every second.

Question 37

What happens when the inclined plane is positioned vertically?

Answer 37

The maximum acceleration of a body is attained as if the body is falling.

Question 38

What happens when the ball is moving upward on the inclined plane?

Answer 38

the speed or acceleration of the ball decreases

Question 39

What are the other conclusions by Galileo on his thought experiments?

Answer 39

- bodies fall with constant acceleration on the surface - gravity pulling all bodies downward is a constant force - force is not necessary to sustain horizontal motion.

Question 40

What are the concepts of motion by Galileo?

Answer 40

- Friction - Free Fall - Intertia - Projectile Motion

Question 41

was an English mathematician, physicist, astronomer, alchemist, theologian, and author

Answer 41

Isaac Newton

Question 42

widely recognized as one of the greatest mathematicians and physicists of all time and among the most influential scientists

Answer 42

Isaac Newton

Question 43

a push or pull exerted by an object on another.

Answer 43

Force

Question 44

the amount of matter that is contained in the object.

Answer 44

Mass

Question 45

an object is the force acting on the object due to gravity.

Answer 45

Weight

Question 46

the universal force of attraction acting between all matter.

Answer 46

Gravity

Question 47

the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.

Answer 47

Friction

Question 48

How to get Weight?

Answer 48

w = m x g where w - weight m - mass g - gravity

Question 49

What is the first law of motion?

Answer 49

Law of Inertia

Question 50

What is the Law of Inertia?

Answer 50

an object at rest remains at rest, and an object in motion will continue to move at constant velocity unless acted upon by an unbalanced force.

Question 51

What happens when object is acted upon by balance force?

Answer 51

it stays at rest

Question 52

What happens when object is acted upon by unbalanced forces?

Answer 52

the object changes speed and direction.

Question 53

With the Law of Inertia, why is a passenger thrown forward when a car brakes quickly?

Answer 53

because inertia (the tendency to remain unchanged) tries to keep the passenger moving

Question 54

With the Law of Inertia, what are the forces that reduced the speed of a car?

Answer 54

friction and drag

Question 55

What is the second Law of Motion?

Answer 55

Law of Acceleration

Question 56

What is the Law of Acceleration?

Answer 56

“the acceleration of an object is directly proportional to the net force acting on it and is inversely proportional to the object’s mass. The direction of the acceleration is in the direction of the net force acting on the object.”

Question 57

What is acceleration?

Answer 57

- directly proportional to the net force acting on it - inversely proportional to the object’s mass.

Question 58

What is acceleration dependent on?

Answer 58

- net force - mass.

Question 59

Where is the direction of the acceleration?

Answer 59

it is in the direction of the net force acting on the object.

Question 60

What is the formula for accelation?

Answer 60

a = Fnet/m or a= F/m

Question 61

What is the SI Unit of Force?

Answer 61

Newton

Question 62

what is 1 Newton equals to?

Answer 62

1 kg · m/s²

Question 63

what is the SI unit of acceleration?

Answer 63

m/s²

Question 64

What is the third law of motion?

Answer 64

Law of Interaction

Question 65

What is the Law of interaction?

Answer 65

“for every action, there is always an equal and opposite reaction.”

Question 66

what is the pair that always goes with the Law of Interaction?

Answer 66

action and reaction forces or the action-reaction pair