NSO Level 1- Science Olympiad (SOF) Class 7: Questions 581 - 584 of 593

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Question number: 581

» Physical and Chemical Changes

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Appeared in Year: 2012

MCQ▾

Question

The warm water is poured slowly into a beaker of ice cubes as shown in figure. Which of the following options is correct, when the warm water was poured into the beaker?

Image shows warm water is poured into a beaker

Image Shows Warm Water is Poured into a Beaker

This image shows warm water is poured into a beaker

1. The ice starts to melt.

2. The glass expands.

3. The temperature of the ice increase

4. The temperature of the warm water decreases.

Choices

Choice (4) Response

a.

2 and 4 only

b.

1,3 and 4 only

c.

1 and 4 only

d.

All of the above

Question number: 582

» Electric Current and Its Effect

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Appeared in Year: 2012

MCQ▾

Question

When an electron moves from negative electrode to positive electrode,

Choices

Choice (4) Response

a.

No charge flows either electrode to other electrode

b.

Positive charge moves from positive electrode to negative electrode

c.

Negative charge moves from negative electrode to positive electrode

d.

Both b. and c. are correct

Question number: 583

» Respiration in Organisms

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Appeared in Year: 2012

MCQ▾

Question

The average velocity of a body is equal to mean of its initial velocity and final velocity. The acceleration of the body is

Choices

Choice (4) Response

a.

Variable

b.

Uniform

c.

Zero

d.

Negative

Question number: 584

» Respiration in Organisms

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Appeared in Year: 2012

MCQ▾

Question

Which of the following is incorrect regarding exhalation process in breathing mechanism?

Choices

Choice (4) Response

a.

Diaphragm relaxes.

b.

Air moves out.

c.

External intercostal muscles contract.

d.

Chest cavity becomes smaller.

Developed by: