NSO Level 1- Science Olympiad (SOF) Class 7: Questions 332 - 336 of 597

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Question number: 332

» Electric Current and Its Effect

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MCQ▾

Question

Read the following statement and select the correct option.

The magnitude of the electrostatic force of attraction or repulsion between two point charges is directly proportional to the product of the magnitudes of charges and inversely proportional to the square of the distance between them.

Choices

Choice (4)Response

a.

Coulomb’s Law

b.

Ohm’s Law.

c.

Law of repulsion

d.

Law of attraction

Question number: 333

» Electric Current and Its Effect

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MCQ▾

Question

Which of the following is the combination of two or more cells?

Choices

Choice (4)Response

a.

Electric cell

b.

Battery

c.

Button cell

d.

Truck battery

Question number: 334

» Motion and Time

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MCQ▾

Question

Which of the following cannot be used for measuring time?

Choices

Choice (4)Response

a.

Simple pendulum

b.

Blinking of eyes.

c.

Leaking tap

d.

Shadow of an object during the day.

Question number: 335

» Electric Current and Its Effect

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MCQ▾

Question

What is the reason of filling argon gas inside the bulb surrounding the filament?

Choices

Choice (4)Response

a.

To keep the space maintained

b.

To balance the pressure

c.

To avoid the oxidation of filament

d.

All of the above

Question number: 336

» Natural Resources and Their Conservation

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MCQ▾

Question

Which of the following is an example of renewable resources?

Choices

Choice (4)Response

a.

Fossil fuel

b.

Natural gas

c.

Solar energy

d.

Coal

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