Term 1 Formulars Flashcards

1
Q

What is Newton’s first law

A

The law of inertia

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2
Q

Newton’s second law

A

F=ma

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3
Q

Newton’s third law

A

Action and reaction

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4
Q

F=ma

A

Second law

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5
Q

Hookes law

A

F=kx

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6
Q

K in hookes law

A

How easy/hard it is to stretch the spring

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7
Q

X in hookes law

A

The spring extension

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8
Q

T=Fd

A

Torque

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9
Q

Acceleration in circular motion

A

Ac=v^2/r

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10
Q

Fc=mv^2/r

A

Centripetal force

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11
Q

Unit of p=mv

A

Kg.ms

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12
Q

Impulse formula

A

F.t

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13
Q

F.t=____=_____

A

Change in momentum, mv-mu

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14
Q

Psystem before =

A

Psystem after

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15
Q

Km/h^-1 To ms^-1

A

Divid by 3.6

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16
Q

5 scalar quantity

A

Time,speed,mass,weight,pressure,energy

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17
Q

5 vector quantities

A

Velocity,distance,force,momentum,displacement,acceleration

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18
Q

What is vector quantity

A

Magnitude,direction

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19
Q

What is Scalar quantity

A

Just magnitude

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20
Q

Different between average speed and velocity

A

Velocity can have negative distance

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21
Q

A=change in velocity/time

A

Acceleration

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22
Q

What is the gradient in a speed graph mean

A

Velocity

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23
Q

What does the gradient in velocity graph mean

A

Acceleration

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24
Q

What does the area in velocity graph mean

A

Displacement

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25
Q

change in y/change in x

A

Is gradient

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26
Q

If you have u,t,a and try to find out s what is the equation

A

S=ut+1/2at^2

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27
Q

First suvat equation

A

V=u+at

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28
Q

What is the equation for v^2

A

V^2=u^2+2as

29
Q

What is the suvat equation 4

A

S=1/2(u+v)t

30
Q

Equation 4 of suvat

A

S=1/2(u+v)t

31
Q

The conversation of momentum in words

A

The total momentum of a system formed by any number of objects remains constant if there is no external forces acting on the system

32
Q

Energy cannot be created or destroyed but it can be converted from one energy form to another

A

The conversation of energy law

33
Q

Condition for the conservation law of momentum is

A

Net force is zero

34
Q

Output/total input

A

Efficiency

35
Q

Is Ep the same as Ek

A

True

36
Q

Equation for density

A

Mass/volume or M/V

37
Q

Density letter

A

P

38
Q

Unit for density

A

Kgm^-3 or gcm^-3

39
Q

1/2mv^2=

A

Ek

40
Q

Ep formula

A

Ep=Mgh

41
Q

Unit for Ek and Ep

A

Joules (j)

42
Q

Power unit

A

Watts

43
Q

P=W/t

A

Power

44
Q

Work formula

A

W=fd

45
Q

If the force and displacement is in opposite directions it’s

A

W=-Fd

46
Q

Units for distance/displacement

A

Meter,kilometre,yards,miles,feet,light year

47
Q

Units for time

A

Seconds,hour,years

48
Q

Unit for mass

A

Kg,g

49
Q

Unit for velocity/speed

A

Ms^-1 or m/s

50
Q

Unit for acceleration

A

Ms^-2 or m/s^2

51
Q

Unit for torque

A

N.m

52
Q

Units for force

A

N

53
Q

Unit for pressure

A

Pa,bar,atm,psi

54
Q

Momentum unit

A

Kgms^-1

55
Q

Velocity is facing _____ in circular motion

A

Tanget

56
Q

Acceleration in circular motion is facing

A

To the centre

57
Q

Equilibrium means

A

Net force is 0

58
Q

Giga=

A

x10^9

59
Q

Micro=

A

x10^-6

60
Q

Hector=

A

x10^2

61
Q

Deci=

A

x10^-1

62
Q

Deca=

A

x10

63
Q

Mega=

A

x10^6

64
Q

Nano=

A

x10-9

65
Q

Covert 1 nm to km

A

1/10^-12

66
Q

Covert 1 Gm to m

A

1x10^9

67
Q

Accuracy in data is

A

The closer it is the Theoretical value

68
Q

Precision is

A

The closeness of the data points