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Maths A level > Year 1 Mechanics > Flashcards

Year 1 Mechanics Flashcards

1
Q

What is a vector quantity

A

A quantity that has both magnitude and direction
e.g. displacement

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2
Q

What is a scalar quantity

A

A quantity that has magnitude
e.g. speed

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3
Q

What is the modelling assumption for a particles

A

Mass of object is concentrated at a single point
Rotational forces and air resistance can be ignored

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4
Q

What is the modelling assumption for a rod

A

Mass is concentrated along a line
No thickness
Rigid

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5
Q

What is the modelling assumption for a lamina

A

Mass is distributed across a flat surface and no thickness

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6
Q

What is the modelling assumption for a uniform body

A

Mass of the object is concentrated at a single point at the geometrical centre of the body

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7
Q

What is the modelling assumption for a light object

A

Treat object as having no mass
Tension the same at both ends of a light string

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8
Q

What is the modelling assumption for a inextensible string

A

Acceleration is the same in objects connected by a taut inextensible string

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9
Q

What is the modelling assumption for a smooth surface

A

No friction

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10
Q

What is the modelling assumption for a rough surface

A

Friction present

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11
Q

What is the modelling assumption for a wire

A

Treated as one dimensional

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12
Q

What is the modelling assumption for a smooth and light pulley

A

Pulley has no mass
Tension is the same on either side of the pulley

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13
Q

What is the modelling assumption for a bead

A

Moves freely along a wire or string
Tension is the same on either side of the bead

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14
Q

What is the modelling assumption for a peg

A

Dimensionless and fixed

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15
Q

What are the 5 SUVAT equations

A

V = U + AT
S= (U+V /2)T
V2 = U2 + 2AS
S = UT + 1/2AT2
S = VT -1/2AT2

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16
Q

What is Newtons Second Law

17
Q

What is Newtons First Law

A

That an object at rest will stay at rest and that an object moving with constant velocity will continue at constant velocity unless an unbalanced force acts on the object

18
Q

What is Newtons Third Law

A

That every action has an equal and opposite reaction

19
Q

How do you go from Displacement to velocity and velocity to acceleration

A

Differentiate

20
Q

How do you go from acceleration to velocity and velocity to displacement

Maths A level (10 decks)

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