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G 9 Quiz

Authored by alaa tarek

Science, Chemistry

9th Grade

G 9 Quiz
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A compound microscope has two lenses. The magnifying power of one is 5 and the combined magnifying power is 100. The magnifying power of the other lens is:

10

20

50

25

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main function of a telescope?

To illuminate surfaces

To capture images

To view distant objects

To magnify small objects

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of lens is used in a microscope?

Concave lens

Convex lens

Plane lens

Diverging lens

4.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Modern telescopes are reflecting because: (Choose all that apply)

Lenses are difficult to manufacture

Lenses are heavy and fragile

lenses absorb light that passes through them

Lenses require only 1 perfect surface

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Both reflecting and refracting telescopes are designed to

break visible light into colors of the spectrum.
separate visible light from ultraviolet and radio waves.
gather and focus visible light.
work better with short-wavelength radiation.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Reflecting telescopes differ from refracting telescopes in having

no eyepiece lens.
two large objective lenses.
a mirror instead of an objective lens.
one large objective lens.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A ______ telescope uses a mirror to focus light onto a small area.

reflecting
refracting
radio
spectrum

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