Physics

Weight is a measure of the ______________________.

• Force of gravity on an object

• Amount of matter in an object

Mass is a measure of the ___________________________.

• Amount of matter in an object

• Force of gravity on an object

On Earth, an adult man with a 90kg mass has a 900N weight. Calculate his weight on
a) The moon.
b) Jupiter. (25.95 metres per second)

• a) 150N
  b) 2335.5N

• a) 2335.5N
  b) 150N
  

• a) 15N
  b) 2000N

This law states that a fixed mass of gas's volume is directly proportional to its absolute temperature. What's its name?

• Charles' law

• Avogadro's law

• Boyle's law

• The pressure law

Coastal breezes and gliding are examples of ______________.

• Convection

• Conduction

• Radiation

• Infrared emission

At night, the land is ___________ than the sea. The ___________ land breeze move towards the ____________.

• Cooler, cold, sea

• Sea, cold, cooler

• Warmer, hot, space

• Warmer, hot, sea

I am a gas law. What I've proven is that the volume of a fixed mass of gas is inversely proportional to its pressure. Who am I?

• Boyle's law

• Charles' law

• Avogadro's law

• The combined law

In cold countries, double-glazed windows and insulating roofs are installed. Why do you think this is important?

• Because such processes effectively prevent heat from being lost.

• Because such processes effectively make thermal energy escape.

• Because they have extra construction supplies.

Explain why you feel warmer after covering your body with a blanket.

• Blankets are made of insulating materials.

• Blankets are made of conductive materials like metals.

• Blankets are made of fabric.

Air is one of the ___________ thermal conductors.

• Worst

• Best