Question

1. which of the following is a measurement of distance?

○ kilowatt hour
○ ohm
○ joule
○ light year

Explanation:

• Kilowatt hour (kWh) measures energy (used for electricity billing, e.g., energy = power × time).
• Ohm (Ω) measures electrical resistance (related to how much a material resists current flow).
• Joule (J) measures energy (work, heat, etc.).
• Light year is the distance light travels in one year in a vacuum, so it measures distance (used in astronomy for cosmic distances).

Answer:

D. light year