Grade 6 MODEL QUESTIONS

When we heat solid, it changes into ______.

• Solid

• Liquid

• Gas

We can check the temperature of any substance using --------

• a ruler

• a thermometer

• a balance

Which particles have more kinetic energy?

• solid

• liquid

• gas

What is potential energy?

• Stored energy

• energy of motion

• Total energy

At what temperature does water freeze on the Celsius scale?

• a) 0°C
  

• 
  b) 32°C
  

• 
  c) 100°C
  

What is temperature?

• 
  The measurement of potential energy of a matter
  

• 
  The measurement of the number of particles in a matter

• 
  The measurement of average kinetic energy of a matter
  

What is condensation?

• 
  Changing gas to liquid
  

• 
  
  Changing solid to liquid
  

• 
  Changing liquid to solid
  

As a substance changes state, its temperature does not change

• TRUE

• FALSE

•What happened to the metal ball after heating?

• Expands(big)

• Contracts(small)

• no change

What is thermal energy?

• kinetic energy

• Temperature

• Total energy of a system