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STEM B (Kepler) > Physics QE > Flashcards

Physics QE Flashcards

1
Q

Product of mass of the object and its velocity

A

Linear Momentum

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2
Q

SI Unit of Linear Momentum

A

kg•m/s

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3
Q

Forces that particle of a system exert to one another

A

Internal Forces

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4
Q

Forces that is exerted to any part of the system by other objects outside the system

A

External Forces

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5
Q

The system is considered to be ________ if there are no external forces acting on it

A

Isolated

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6
Q

It is the basis of the Third Law of Motion

A

Conservation of Linear Momentum

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7
Q

According to the Conservation of Linear Momentum, for an isolated system, the total momentum is _________

A

Conserved

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8
Q

The action of driving or pushing forward

A

Propulsion

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9
Q

The upward force that the exhaust gases exert on the rocket

A

Thrust Force

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10
Q

Negative ratio of the relative velocity of the two colliding bodies after collision to the relative velocity before the collision

A

Coefficient of Restitution

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11
Q

An interaction between two or more bodies that come in contact with each other

A

Collision

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12
Q

In collision, ________________ is always conserved

A

Linear Momentum

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13
Q

Type of collision where e=0

A

Perfectly Inelastic Collision

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14
Q

Type of collision where e=1

A

Elastic Collision

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15
Q

Type of collision where e is between 0 and 1

A

Inelastic Collision

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16
Q

Used to determine the velocity of a bullet

A

Ballistic Pendulum

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17
Q

Resistance to motion whenever two materials or media in contact tend to move

A

Friction

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18
Q

Types of Friction

A

Sliding Friction

Rolling Friction

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19
Q

Types of Sliding Friction

A

Static Friction

Kinetic Friction

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20
Q

Friction is sufficient to prevent relative motion between the surfaces

A

Static Friction

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21
Q

Present when there is relative motion between the surfaces in contact

A

Kinetic Friction

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22
Q

Occurs when one surface rotates without sliding nor slipping

A

Rolling Friction

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23
Q

The maximum angle of slope keeping an object at rest

A

Angle of Repose

24
Q

The angle of slope in which the object is in constant velocity

A

Angle of Uniform Slip

25
Q

His idea was that motion is classified into two types which are Natural and Violent Friction

A

Aristotle

26
Q

Every object has a proper place determined by its nature

A

Natural Motion

27
Q

Pushing or pulling forces

A

Violent Motion

28
Q

His idea was that the natural tendency of an object is to continue moving and no force is needed to keep it moving

A

Galileo

29
Q

Ability to resist any changes in motion

A

Inertia

30
Q

Said that moving object needs a steady force to keep it moving

A

Aristotle

31
Q

States that every object continues in the state of rest or uniform speed unless acted on by a non zero force

A

Law of Inertia (1st Law)

32
Q

The measure of inertia

A

Mass

33
Q

States that the acceleration of an object is directly proportional to the net force and inversely proportional to the mass

A

Law of Acceleration (2nd Law)

34
Q

This force cannot be reduced into other basic interactions

A

Fundamental Force

35
Q

A force that attracts two objects with mass

A

Gravitational Force

36
Q

Magnitude of the gravitational force exerted on the object and varies with location

A

Weight

37
Q

An attractive or repulsive force between charged bodies

A

Electromagnetic Force

38
Q

Force responsible for radioactive decay of some nuclei

A

Weak Nuclear Force

39
Q

Force that holds the constituents of the nucleus together

A

Strong Nuclear Force

40
Q

A force exerted to an object

A

Applied Force

41
Q

A pulling force exerted by a rope, chain, string, or cable

A

Tension

42
Q

Perpendicular force

A

Normal Force

43
Q

SI unit for force

A

N (Newton)

44
Q

States that for every action, there is an equal and opposite reaction

A

Law of Interaction (3rd Law)

45
Q

Occurs when a force acts upon an object to cause a displacement of the object

A

Work

46
Q

SI Unit of Work

A

Joule (J)

47
Q

Ability to do work

A

Energy

48
Q

Energy that is possessed by an object due to its motion or position

A

Mechanical Energy

49
Q

Energy possessed by an object due to its position or configuration

A

Potential Energy

50
Q

Energy due to its position

A

Gravitational Potential Energy

51
Q

Energy possessed by its body because of its motion

A

Kinetic Energy

52
Q

States that energy can neither be created nor destroyed. It can only change form

A

Conservation of Mechanical Energy

53
Q

Ratio of output work to the input work done by a device and it is expressed in percentage

A

Efficiency

54
Q

Amount of useful energy provided bu the device to the energy required to operate it

A

Efficiency

55
Q

Rate of doing work

A

Power

56
Q

SI Unit of Power

A

Watt (W)

57
Q

1hp is equal to how many watts?

A

746 watts

STEM B (Kepler) (4 decks)

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