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61.
What is the SI unit of power in the context of heating or cooling systems?
Explanation:
62.
What type of current changes direction periodically and is commonly used in household electrical systems?
Explanation:
63.
Which optical phenomenon is responsible for the formation of rainbows when sunlight is refracted in raindrops?
Explanation:
64.
What is the phenomenon where light waves change direction as they encounter an obstacle or aperture and spread out?
Explanation:
65.
According to Newton's second law of motion, what is the relationship between force, mass, and acceleration?
Explanation:
66.
What is the process by which a gas changes directly from a gas to a solid without passing through the liquid phase called?
Explanation:
67.
Which law of thermodynamics states that heat always flows from a hotter body to a colder body?
Explanation:
68.
What is the direction of the magnetic field around a current-carrying wire according to the right-hand rule?
Explanation:
69.
In an electrical circuit, what is the term for a device that allows electric current to flow in only one direction?
Explanation:
70.
Which optical phenomenon occurs when light waves change direction as they pass from one medium into another with the same refractive index?