SI Units and SI Base Quantities

What is the SI base unit for Mass?

• kilogram

• gram

• meter

• second

What is the SI base unit for Time?

• second

• minute

• hour

• day

Match the following SI base quantities to their correct SI base units:

• ampere

• length

• kelvin

• time

• second

• temperature

• metre

• electric current

• kilogram

• mass

Derived units are non-SI base units, such as ______ or ______. Fill in the blanks.

• joules, pascals

• meters, seconds

• candela, mole

• kelvin, ampere

Therefore, the joule (J) in SI base units is: Choose the correct answer.

• kg m² s⁻²

• kg m s⁻²

• kg m⁻¹ s⁻²

• kg m s²

Therefore, the pascal (Pa) in SI base units is: Choose the correct answer.

• kg m⁻¹ s⁻²

• kg m² s⁻²

• kg m s⁻²

• kg m s²

The combined units on either side of a physical equation should be the _______.

• same

• different

• opposite

• reciprocal

What does it mean if a quantity has no units?

• It is called dimensionless

• It is called dimensional

• It has a value of zero

• It is a vector quantity

What is the name standing for the prefix 'T' in the powers of ten table?

• Tera

• Taci

• Tesla

• Timi

What is the power of 10 for the prefix 'Giga-' in the powers of ten table?