Units For And Formulas Flashcards by Rachel Smyth

Q

Metre

A

M

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Q

Kilogram

A

Kg

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Q

Second

A

S

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Q

Millimetres

A

mm

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Q

Centimetres

A

cm

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Q

Kilometres

A

km

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Q

Grams

A

g

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Q

Volume

A

cm3

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Q

Density

A

G/cm3

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Q

Speed

A

m/s

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Q

Acceleration

A

m/s2

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Q

Force

A

Newton

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Q

Atmospheric pressure

A

Mbs

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Q

Force

A

N

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Q

Weight

A

N

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Q

Moment of a force

A

Nm or Ncm

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Q

Pressure

A

N/m2 or Pascals

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Q

Area

A

cm2

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Q

Work

A

J

Q

Power

A

W

Q

Energy

A

J

Q

Celcius

A

°C

Q

Heat

A

J

Q

Sound

A

dB

Q

Current

A

A

Q

Potential difference

A

V

Q

Resistance

A

Ω

Q

Direct current

A

D.c

Q

Alternating current

A

A.c

Q

Kilowatts

A

KW

Q

How many mm in a cm

A

10

Q

How many cm in a m

A

100

Q

How many m in a km

A

1000

Q

How many g in a kg

A

1000

Q

How to find area

A

Length x width

Q

How to find volume

A

Length x width x height

Q

Formula for Mass, density and volume

A

DxV

Q

Fomrula for distance time and speed

A

S x t

Q

Formula for force, area and pressure

A

P x A

Q

Formula for work, force and distance

A

F x D

Q

Formula for voltage, current and resistence

A

I x R

Q

What is the formula for work, power and time

A

P x T

Q

What is the formula for acceleration

A

Time taken for speed to change

Q

How to convert mass to weight

A

Mass(kg) X 10 = Weight (N)

Q

Formula for a moment of a force

A

Force x perpendicular distance from the fulcrum to the line of action

Q

State the law of the lever

A

Anticlockwise moments=clockwise moments

Q

How to calculate kW hr

A

1000