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1. A natural phenomenon that illustrates the dispersal of light is:
A. an echo.
B. an eclipse.
C. a rainbow.
D. a rainfall.

2. Canned foods and drinks have expiry dates on them. The hazard involved in taking an expired drink is:
A. food poisoning.
B. impaired hearing.
C. suffocation.
D. poor circulation of blood.

3. Which of the following sets of devices operate on the principle of magnetism?
A. Loudspeakers, compass, alarms.
B. Loudspeakers, alarms, LCD TV.
C. Compass, loudspeakers, LCD TV.
D. Compass, alarms, LCD TV.

4. A hunter experiences a backward force upon firing a gun. Which of Newton's laws of motion is demonstrated in the situation?
A. First law.
B. Third law.
C. Second law.
D. Law of inertia.

5. A bowl of water on a gas stove was initially cold. It became warm after some time. What was the mode of heat transfer in the water?
A. Conduction.
B. Radiation.
C. Convection.
D. Emission.

Sagot :

GinnyAnswer

Final answer:

The answer explains phenomena related to light dispersion, food expiration hazards, magnetism, Newton's Third Law, and heat transfer via conduction.


Explanation:

The natural phenomenon that illustrates the dispersal of light is a rainbow. Rainbows occur when sunlight is refracted, reflected, and dispersed in water droplets, creating a spectrum of colors.

The hazard involved in taking an expired drink is food poisoning. Consuming expired canned drinks can lead to foodborne illnesses due to bacterial contamination.

The devices that operate on the principle of magnetism are loudspeakers, compasses, and alarms. Magnetism is the underlying principle behind the functionality of these devices.

When a hunter experiences a backward force upon firing a gun, Newton's Third Law of Motion is demonstrated. According to this law, every action has an equal and opposite reaction.

The mode of heat transfer in the water on a gas stove becoming warm is conduction. Conduction occurs when heat is transferred through direct contact between materials.


Learn more about Light Dispersion, Food Safety, Magnetism, Newton's Laws, Heat Transfer here:

https://brainly.com/question/1059833


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