Units of Measurement

What’s inside

• Which SI base unit is used to measure thermodynamic temperature?
• What is the exact length of one international nautical mile?
• Which unit is defined as one newton per square metre?
• What does the SI unit lumen measure?
• The SI unit for measuring speed is the [____].
• One astronomical unit is approximately [____] kilometres.
• The SI base unit of electric current is the [____].
• The SI base unit of mass is the [____].