Measurement & Problem Solving

Which of the following is an example of a base unit? Select all that apply.

• m

• s

A unit of measurement which has been officially accepted is known as a . . .

• Standard unit

• Base unit

• Physical quantity

• Dimension

Answer explanation

A standard unit is a unit of measurement which has been officially accepted.

Which of the following is an example of a derived unit? Select all that apply.

• K

• m

• cd

Which of the following is the SI unit for length?

• m

• ft

• yd

• K

• s

Which of the following is the SI unit for time?

• fortnight

• d

• h

• s

Which of the following is the SI unit for mass?

• K

• kg

• cd

• lb

• oz

Match each term to its dimensional representation.

•  [T]

Which of the following are examples of correct conversion factors? Select all that apply.

What is the equivalence statement for feet (ft) and inches (in)?

• 1 ft = 12 in

• 12 ft = 1 in

• 1 in = 2.54 cm

What is the equivalence statement for seconds (s) and hours (hr)?

• 1 hr = 3600 s

• 60 hr = 1 s

• 1 hr60 s\frac{1\ hr}{60\ s}

  60 s

  
  

  1 hr

  ​

• 60 s1 hr\frac{60\ s}{1\ hr}

  1 hr

  
  

  60 s

  ​