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Chemistry- test quiz 15 Total Quiz 301 ☺️☺️☺️☺️☺️☺️☺️☺️☺️☺️☺️☺️☺️

Chemistry- test quiz 15 Total Quiz 301 ☺️☺️☺️☺️☺️☺️☺️☺️☺️☺️☺️☺️☺️

the scientific study of the structure of substances and what happens to them in different conditions or when mixed with each other

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Quiz Questions And Answers

'Shock-absorbers' are usually made of steel as it:

has lower elasticity.
has higher elasticity.
has no ductile property.

The function of ball bearings in a wheel is:

to increase friction.
to convert kinetic friction into rolling friction.
to convert static friction into kinetic friction.

The atmospheric air is held to the Earth by:

gravity
winds
clouds

The time period of a pendulum when taken to the Moon would:

decrease
become zero
increase

The phenomenon of light associated with the appearance of the blue colour of the sky is:

Reflection
Refraction
Scattering

The frequency of ultrasound wave is typically:

Above 20 kHz
Above 20,000 kHz
Below 20 kHz

Optical fibres are based on the phenomenon of:

Dispersion
Diffraction
Total Internal Reflection

A rocket works on the principle of conservation of:

Energy
Linear momentum
Linear acceleration

A piece of paper and a cricket ball are dropped from the same height. Under which of the following conditions do both reach the surface simultaneously?

They must have the same density.
They must have the same mass.
They must be dropped in vacuum.

Smoke is formed due to:

solid dispersed in gas
gas dispresed in solid
gas dispersed in gas
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Chemistry- test quiz 15 Total Quiz 301 ☺️☺️☺️☺️☺️☺️☺️☺️☺️☺️☺️☺️☺️ : Test Trivia

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