CHES P3 Module Starter Questions

What is density?

• Volume of a unit mass of a substance.

• Weight per unit mass of a substance

• Mass of a unit volume of a substance.

• Weight per unit volume of substance

How do you calculate the volume of a cube?

• Length x Height x Width

• Mass x Height

• $\frac{1}{2}length\ x\ height$

• $\pi r^2$

What are the changes of state called?

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When a substance changes state, does the mass change?

• Yes

• No

• Sometimes

When a substance changes state does the volume change?

• Yes

• No

• Sometimes

What types of energy make up the internal energy of a system?

• Kinetic Energy

• Potential Energy

• Kinetic and Potential energy

• Thermal energy

What is the definition of specific heat capacity?

• The exact amount of energy to change state of a substance

• The amount of heat required to boil a substance

• $The\ energy\ required\ to\ change\ state\ at\ 100\degree C\ for\ a\ 1\ kg\ mass$

• $The\ heat\ energy\ required\ to\ raise\ 1kg\ mass\ by\ 1\degree C$
  

What is the definition of specific latent heat?

• How much energy a substance can store

• the amount of energy required to change the state of 1kg of a material without changing its temperature

• the amount of energy required to change the state of 1 kg of a material

• The amount of energy to heat a substance by 1 degree

What causes gas pressure?

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Describe the particle structure in a solid, liquid and gas.

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