Question

the base unit for time is ____.
gram
liter
kilogram
meter
seconds

1. choose the best answer.

the base unit of length is ____.
mole
kelvin
meter
gram
seconds

Explanation:

• For the first question:
• Gram is a unit of mass.
• Liter is a unit of volume.
• Kilogram is a unit of mass (a larger unit than gram).
• Meter is a unit of length.
• Seconds is the base - unit for time in the International System of Units (SI).
• For the second question:
• Mole is a unit for the amount of substance.
• Kelvin is a unit of temperature.
• Meter is the base - unit of length in the SI system.
• Gram is a unit of mass.
• Seconds is a unit of time.

Answer:

• First question: seconds
• Second question: meter