Forces and energy

How do you measure density?

• Mass x Volume

• Mass / Volume

• Volume / Mass

• Volume / Mass

Density of water is ____

• 1 kg /cm^3

• 1 kg / m^3

• 1 gm/cm^3

• 1 gm / m^3

Modern ships are made of high quality wood

• Trye

• False

Balloon filled with which gases will float in the air

• Hydrogen

• oxygen

• nitrogen

• Helium

A sip carrying crude oil started leaking into the sea. Where would this crude oil go.

• At the bottom of the sea

• the crude will mix with sea water

• the crude will be eaten by the fishes

• the crude with float above the water

What is correct about absolute zero?

• It is the lowest possible temperature.

• Particles will start flying at this stage

• -220 degree Celsius

• -273 degree Celsius

• • - 0 degree celcius