Default Title

Question (31)

QN002301

A person hears thunder 5 s after seeing lightning. If speed of sound is 330 m/s, find the distance from lightning.

(A) 330 m
(B) 660 m
(C) 990 m
(D) 1650 m

Correct Answer: D

Explanation:

Distance = 330 × 5 = 1650 m

Link:

Report Error

Question (32)

QN002302

Which device protects buildings from lightning damage?

(A) Thermometer
(B) Lightning conductor
(C) Hygrometer
(D) Barometer

Correct Answer: B

Explanation:

Lightning conductors protect buildings.

Link:

Report Error

Question (33)

QN002303

During thunderstorms, swimming in open water is unsafe because water:

(A) Reflects clouds
(B) Conducts electricity
(C) Blocks sound waves
(D) Reduces lightning speed

Correct Answer: B

Explanation:

Water conducts electricity.

Link:

Report Error

Question (34)

QN002304

Which statement correctly describes thunder?

(A) It is produced by moving clouds only
(B) It is the sound produced by rapidly expanding air
(C) It is produced by rainfall hitting ground
(D) It is caused by wind friction only

Correct Answer: B

Explanation:

Thunder is caused by rapid expansion of heated air.

Link:

Report Error

Question (35)

QN002305

A lightning strike transfers 3600 J energy in 3 s. What is the power?

(A) 300 W
(B) 600 W
(C) 900 W
(D) 1200 W

Correct Answer: D

Explanation:

Power = 3600 ÷ 3 = 1200 W

Link:

Report Error

Question (36)

QN002306

Which factor mainly causes formation of thunderstorms?

(A) Rising warm moist air
(B) Rotation of Earth only
(C) Cold ocean currents only
(D) Mountain rocks

Correct Answer: A

Explanation:

Warm moist air rising forms thunderstorms.

Link:

Report Error

Question (37)

QN002307

The safest place during lightning while travelling is:

(A) Open truck
(B) Motorcycle
(C) Closed car
(D) Bicycle

Correct Answer: C

Explanation:

Closed cars provide safety during lightning.

Link:

Report Error

Question (38)

QN002308

Lightning can cause severe forest fires because it produces:

(A) Extreme heat
(B) Snowfall
(C) Low humidity only
(D) Cold winds

Correct Answer: A

Explanation:

Lightning produces intense heat.

Link:

Report Error

Question (39)

QN002309

A thunder sound reaches a person 10 s after lightning occurs. If sound speed is 340 m/s, determine the distance.

(A) 1700 m
(B) 2400 m
(C) 3000 m
(D) 3400 m

Correct Answer: D

Explanation:

Distance = 340 × 10 = 3400 m

Link:

Report Error

Question (40)

QN002310

Which statement best explains the relation between thunderstorms and lightning?

(A) Lightning occurs without clouds always
(B) Thunderstorms involve strong winds, lightning, and thunder
(C) Thunderstorms produce only rainfall
(D) Lightning is unrelated to storms

Correct Answer: B

Explanation:

Thunderstorms include lightning, thunder, and strong winds.

Link:

Report Error

Question (31)

A person hears thunder 5 s after seeing lightning. If speed of sound is 330 m/s, find the distance from lightning.

Explanation:

Link:

Question (32)

Which device protects buildings from lightning damage?

Explanation:

Link:

Question (33)

During thunderstorms, swimming in open water is unsafe because water:

Explanation:

Link:

Question (34)

Which statement correctly describes thunder?

Explanation:

Link:

Question (35)

A lightning strike transfers 3600 J energy in 3 s. What is the power?

Explanation:

Link:

Question (36)

Which factor mainly causes formation of thunderstorms?

Explanation:

Link:

Question (37)

The safest place during lightning while travelling is:

Explanation:

Link:

Question (38)

Lightning can cause severe forest fires because it produces:

Explanation:

Link:

Question (39)

A thunder sound reaches a person 10 s after lightning occurs. If sound speed is 340 m/s, determine the distance.

Explanation:

Link:

Question (40)

Which statement best explains the relation between thunderstorms and lightning?

Explanation:

Link:

Excel With Tutors

ExcelWithTutors

For Student

For Tutors

Learn

OUR POLICY