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PHYSCI Q1

Authored by Terimar Rifa Jr

English

11th Grade

Used 2+ times

PHYSCI Q1
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50 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following is the first stage in the life cycle of a star?

Supernova

Protostar

Main sequence

Red giant

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What marks the end of a star’s life cycle?

Fusion of hydrogen

The formation of a neutron star

The end of fusion in the core

The expansion of the outer layers

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The process of nuclear fusion in stars primarily converts:

Helium into hydrogen

Hydrogen into helium

Oxygen into carbon

Nitrogen into hydrogen

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which element is most likely to form a stable ion with a charge of +1?

Oxygen

Sodium

Magnesium

Chlorine

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A molecule of methane (CH₄) contains:

One carbon atom and four hydrogen atoms

Four carbon atoms and one hydrogen atom

Two carbon atoms and two hydrogen atoms

One carbon atom and two hydrogen atoms

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following represents an ionic bond?

NaCl

H₂O

CO₂

CH₄

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following molecules is non-polar based on electronegativity difference?

H₂O

CO₂

NH₃

HF

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