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PHYSICS F4 > CH2 > Flashcards

CH2 Flashcards

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1
Q

Definition of distance

A

Length of route covered by an object

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2
Q

Definition of displacement

A

Shortest distance between initial and final position in a specific direction

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3
Q

Definition of speed

A

Rate of change of distance

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3
Q

Definition of Velocity

A

Rate of change of displacement

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4
Q

Definition of Acceleration

A

Rate of change of Velocity

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5
Q

4 Linear Motion Equations

A

v=u+at
s=(v+u)t/2
s=ut+at^2/2
v^2=u^2+2as

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6
Q

Gradient of displacement-time graph represent

A

Velocity

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7
Q

Gradient of velocity-time graph represent

A

Acceleration

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8
Q

Area under graph of velocity-time graph represent

A

Displacement

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9
Q

Definition of Free Fall Motion

A

Object fall down due to Gravitational force only

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10
Q

Definition of inertia

A

The tendency of an object to remain at rest, of if moving to continue its motion in a straight line at uniform velocity

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11
Q

Newton’s First Law Of Motion

A

An Object will remain at rest or move at uniform velocity unless acted upon by an external force

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12
Q

Factor affecting inertia & its relationship

A

Mass, The larger the mass, the larger the inertia

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13
Q

Definition of momentum

A

Product of mass and velocity

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14
Q

Principle of Conservation Of Momentum

A

The total momentum before collision is equal to the total momentum after collision if no external force is action on

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15
Q

Type of collision where both object move together after collision

A

Inelastic Collision

16
Q

Type of collision where both object move seperately after collision

A

Elastic Collision

17
Q

Type of collision where both object are initially at rest and moves in opposite direction

A

Explosion

18
Q

Newton’s second law of motion

A

Rate of change in momentum is directly proportional to the force applied and act in the direction of the applied force

19
Q

Definition of force

A

Push or Pull

20
Q

3 Physical properties forces change

A

Speed, direction, shape

21
Q

Definition of impulse

A

change in momentum

22
Q

Definition of Impulsive force

A

Rate of change in momentum in a short period of time in a collision or impact

23
Q

Newton’s Third Law Of Motion

A

For every action, there is a reaction of an equal magnitude in the opposite direction

24
Q

Impact of follow though action

A

Increase time of impact
Increase change of momentum
Increas impulse

25
Q

Definition of Weight

A

Gravitational force acting on an object

26
Q

Definition of Gravitational field strength

A

Gravitational force acting on 1kg of mass

PHYSICS F4 (6 decks)

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