AS1 1.1 Physical Quantities

Question 1

What 2 things are required to give a measurement of a physical property?

Answer 1

1. Magnitude
2. Units

Question 2

Standard Form:
1.Tera

Answer 2

Symbol: T
Multiplier: 10^12

Question 3

Standard Form:
2. Giga

Answer 3

Symbol: G
Multiplier: 10^9

Question 3

Standard Form:
3. Mega

Answer 3

Symbol: M
Multiplier: 10^6

Question 4

Standard Form:
4. Kilo

Answer 4

Symbol: k
Multiplier: 10^3

Question 5

Standard Form:
5. Milli

Answer 5

Symbol: m
Multiplier: 10^-3

Question 6

Standard Form:
6. Micro

Answer 6

Symbol: µ
Multiplier: 10^-6

Question 7

Standard Form:
7. Nano

Answer 7

Symbol: n
Multiplier: 10^-9

Question 8

Standard Form:
8. Pico

Answer 8

Symbol: p
Multiplier: 10^-12

Question 9

Standard Form:
9. Femto

Answer 9

Symbol: f
Multiplier: 10^-15

Question 10

Base Units: Name base quantities with their symbol, name and what they measure.

Answer 10

1. Ampere (A) (Electrical Current)
2. Kilogram (kg) (Mass)
3. Second (s) (Time)
4. Metre (m) (Length)
5. Kelvin (K) (Temperature)
   Extra 6. Mole (Moles) (Amount of substance)
6. Candela (Candela) (Light Intensity)

Question 11

Derived Units ( Multiple Base Units)

Answer 11

1. Force ; kgms(^−2)
2. Pressure ; kgm(^-1)s(^-2)
3. Moment ; kgm(^2)s(^-2)
4. Energy (work-done) ; kgm(^2)s(^-2)
5. Power ; kgm(^2)s(^-3)
6. Frequency ; s(^-1)
7. Charge ; As
8. Voltage ; kgm(^2)s(^-3)A(^-1)
9. Resistance ; kgm(^2)s(^-2)A(^-2)

Question 12

Derived Unit Definition

Answer 12

A derived unit is a combination of multiple SI Base Units