What is the change in velocity of a substance related to?

What is the measurement of energy required to change the temperature called?

• Heat

• Temperature

• Energy

• Work

Which process involves direct contact between surfaces?

• Conduction

• Convection

• Radiation

Fill in the blank: _______ is the process of heat transfer via electromagnetic waves.

• Conduction

• Convection

• Radiation

• Insulation

Match the following phase changes with their descriptions:

• Liquid to gas

• Sublimation

• Solid to liquid

• Melting

• Gas to liquid

• Vaporization

• Liquid to solid

• Condensation

• Solid to gas

• Freezing

During which phase change does water still consume heat energy without a change in temperature?

• Latent phase of fusion

• Latent phase of vaporization

What is the charge of an electron?

• Positive

• Negative

• Neutral

What is the charge of a proton?

• Positive

• Negative

• Neutral

What is the atomic number of an element with 5 protons?

• 5

• 10

• 11

What is a characteristic of a physical change?

• No molecular change

• Change in chemical composition

• Formation of new substances

• Irreversibility