Write T for true statement and F for false statement.

1. Light cannot travel through a vacuum.
2. Shadow is formed when the light is blocked by an object.
3. Plants need light to make their food.
4. The moon is a luminous object.
5. You can see through an opaque object.
6. We can prove that light travels in straight line using card board with holes.
7. You can see the candle flame through a bent pipe.
8. Noise pollution can affect sleep and mental health.
9. Schools and hospitals should be in NO-Horn zone.
10. Soft sounds are caused by large vibrations.
11. Loudness depends on the strength of vibrations.
12. Loud sounds have high intensity.
13. Noise from machine cannot be controlled.
14. Trees are good absorbent of sound.
15. Sound travels faster in water than in metals.

False - Light can travel through a vacuum. This is why we can see sunlight on Earth despite the vast, airless space between us and the sun.

True - A shadow forms when an object blocks the path of light.

True - Plants need light to make food through the process of photosynthesis.

False - The moon is not a luminous object; it reflects the Sun's light.

False - You cannot see through an opaque object as it does not allow light to pass through.

True - You can prove that light travels in a straight line by aligning several cardboard pieces with holes and observing that light only passes through when the holes are perfectly aligned.

False - You cannot see a candle flame through a bent pipe because light travels in straight lines.

True - Noise pollution can negatively impact sleep and mental health by causing stress and disturbances.

True - Schools and hospitals should be in NO-Horn zones to maintain a quiet environment conducive to learning and recovery.

False - Soft sounds are typically caused by small vibrations.

True - Loudness depends on the strength of the vibrations; stronger vibrations produce louder sounds.

True - Loud sounds indeed have high intensity, which is measured in decibels.

False - Noise from machines can be controlled using soundproofing, maintaining equipment, or regulating usage.

True - Trees are effective at absorbing sound, which helps reduce noise pollution in environments.

False - Sound travels faster in metals than in water because metals are denser and transmit sound waves more quickly.

Answered by AvaCharlotteMiller | 2025-07-06