Units & Measurements HHW

The density of a material in SI units is 128 kg m-3 . In certain units in which the unit of length is 25 cm and the unit of mass is 50 g, the numerical value of density of the material is____

• 40

• 16

• 640

• 410

Which fundamental quantity is measured in amperes?

• electric current

• amount of substance

• temperature

• intensity of light

Which SI unit is used to measure density?

• m

• m²

• m³

• kg/m³

SI stands for ___.

• Sports Illustrated

• Scientific Notation

• International System (of measurements)

• Instructional System (of measurements)

Which object is the MOST dense out of the group?

• Gold

• Pure Water

• Brass

• Balsa wood

What are physical quantities?

• Physical quantities are anything that the mind can think of. Dreams, thoughts and feelings are quantities.

• Physical quantities are any activities that human beings can participate in.

• Physical quantity are anything that can be counted or measured and a value be placed on.

• Physical quantities are things that CANNOT be counted or measured.

What are fundamental units?

• Fundamental units are the units that not dependent upon any other units.

• Fundamental units are the units derived from the basic units.

• Fundamental units are the units adopted by the SI

• Fundamental units are the units that we use every day for physic calculations

Which one of these options is NOT a derived quantity?

• Area

• Volume

• Density

• Current

Tags

5

The capacity of a glass of orange juice would be measured in...

• litres  (L)

• cubic metres  (m³)

• millilitres  (mL)

• kilograms  (kg)

Force is a

• fundamental quantity

• derived quantity