1. TLW convert between SI units
2.4
TLW convert between SI units

2. Base Units Quantity Name Symbol Distance Meter m Mass kilogram kg Time
Second s
Electric Current
Ampere A
Temperature
kelvin K
Intensity of Light
Candela cd
Amount of substance
mole
mol
Base Units

3. Derived Units Quantity Name Symbol Area square meter 𝑚 2 Volume
cubic meter
𝑚 3
Mass
Gram g
Velocity
meters/second
𝑚 𝑠 − ( 𝑚 𝑠 )
Angle
Radian
rad
Derived Units

4. Other Units Name Symbol Value in SI Units Liter L, l
1 𝐿=1 𝑑𝑚 3 = 10 −3 𝑚 3
Minute
Min
1 min = 60 s
Hour h
1 h = 60 min = 3600 s
Day d
1 d = 24 h = s
Metric ton (tonne) t
1 t = kg
Are a
1 a = 𝑚 2
Hectare ha
1 ha = 𝑚 2
Other Units

5. The acceleration of an object has units measured in meters per second squared. Write down the symbol used for acceleration.
Example

6. Thee SI unit for force is the newton. It is abbreviated N
Thee SI unit for force is the newton. It is abbreviated N. The force F needed to produce an acceleration a on an object with mass m is given by F = m x a.
A. Write down the correct combination of SI units for force.
Calculate the force needed to cause an acceleration of 20 𝑚/ 𝑠 2 on a soccer ball that has a mass of kg.
Example

7. Metric Units King Henry Drinks lime dead cows make green milk
Convert 1230 hl to l. Write in standard form.
Metric Units

8. Temperature Conversions
Celsius to Fahrenheit: 𝑡 𝐹 = 9 5 𝑡 𝐶 +32
Kelvin to Celsius: 𝑡 𝐶 = 𝑡 𝐾 −273.15
Convert 280 K to F⁰.
Temperature Conversions

9. P #1-15 odds
Assignment