# 2.1 Physical Quantities Flashcards

1

Q

What are the seven SI base quantities and units? (7)

A

- Length - metre (m)
- Mass - kilogram (kg)
- Time - second (s)
- Electric current - ampere (A)
- Temperature - kelvin (K)
- Amount of substance - mole (mol)
- Luminous intensity - candela (cd)

2

Q

Derived Units - Volume

A

m^3

3

Q

Derived Units - Velocity

A

ms^-1

4

Q

Derived Units - Acceleration

A

ms^-2

5

Q

Derived Units - Density

A

kg m^-3

6

Q

Derived Units - Momentum

A

kg ms^-1

7

Q

Derived Units - Force

A

newton (N)

kg ms^-2

8

Q

Derived Units - Pressure

A

pascal (Pa)

N m^-2

9

Q

Derived Units - Work Done (energy)

A

joule (J)

N m

10

Q

Derived Units - Power

A

watt (W)

J s^-1

11

Q

Derived Units - Electrical Charge

A

coulomb (C)

A s

12

Q

Derived Units - Potential Difference

A

volt (V)

J C^-1

13

Q

Derived Units - Resistance

A

ohm

V A^-1

14

Q

Derived Units - Frequency

A

hertz (Hz)

s^-1

15

Q

Prefixes - pico (p)

A

10^-12

16

Q

Prefixes - nano (n)

A

10^-9

17

Q

Prefixes - micro (mu symbol)

A

10^-6

18

Q

Prefixes - milli (m)

A

10^-3