Question

part a
which of the following quantities represent mass?
check all that apply.
12.0 lbs
0.34 g
120 kg
1600 kn
0.34 m
411 cm
899 mn
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Explanation:

Step1: Recall mass units

Mass is measured in kilograms (kg), grams (g), etc. Pounds (lbs) is also a unit of mass in the imperial - system.

Step2: Analyze each option

• 12.0 lbs: It is a unit of mass in the imperial system.
• 0.34 g: Gram is a unit of mass.
• 120 kg: Kilogram is the SI - unit of mass.
• 1600 kN: Newton (N) is a unit of force, so kN (kilo - Newton) is also a unit of force, not mass.
• 0.34 m: Meter (m) is a unit of length, not mass.
• 411 cm: Centimeter (cm) is a unit of length, not mass.
• 899 MN: Mega - Newton (MN) is a unit of force, not mass.

Answer:

12.0 lbs, 0.34 g, 120 kg