physics world

Does an atom have a color?

• Yes it does.

• No.

• Depends on how u define "having color".

Are all metals magnetic?

• Yes

• No

• Depends on what u define by magnetic but not all metals are not magnetic

The instrument that measures and records the relative humidity of air is

• Hydrometer

• Hygrometer

• Lactometer

• Barometer

The shape of our milky way galaxy is

• circular

• elliptical

• spiral

• none

The different colors of different stars are due to the variation of

• temperature

• pressure

• density

• radiation from them

Instrument used to measure the force and velocity of wind is

• Ammemeter

• Anemometer

• Altimeter

• Audometer

What combination of color the most convenient during the day and night time

• Orange and blue

• White and black

• Yellow and blue

• Red and green

Clothes keep us warm in the winter because they

• supply heat

• do not radiate heat

• prevent air from contacting the body

• prevent the heat of the body from escaping

The name of the space shuttle that landed man on the moon was

• Eagle

• Columbia

• Challenger

• Apollo

When pressure is increased the melting point of ice

• increases

• does not change

• decreases

• depends on the impurities in the ice