Thermal Energy and Chemical Reactions Review

What is thermal energy?

• The energy that comes from heat

• The energy that comes from light

• The energy that comes from sound

• The energy that comes from electricity

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

How does adding thermal energy influence a chemical change?

• It decreases the number of collisions

• It increases the number of collisions

• It has no effect on the number of collisions

• It stops the collisions

Tags

NGSS.HS-PS1-5

Which phase changes are exothermic?

• Freezing and Condensation

• Melting and Evaporation

• Boiling and Sublimation

• Freezing and Melting

Tags

NGSS.MS-PS1-4

Which phase changes are endothermic?

• Melting and Evaporation

• Freezing and Condensation

• Boiling and Freezing

• Sublimation and Condensation

Tags

NGSS.MS-PS1-4

What happens in an exothermic reaction?

• Heat is released

• Heat is absorbed

• Heat is neither released nor absorbed

• Heat is converted to light

Tags

NGSS.HS-PS1-4

What happens in an endothermic reaction?

• Heat is absorbed

• Heat is released

• Heat is neither released nor absorbed

• Heat is converted to light

Tags

NGSS.HS-PS1-4

What are the benefits of using repeated trials and replication in a scientific investigation?

• They allow you to double-check your experimental design, increase reliability, and increase validity

• They allow you to save time and resources

• They allow you to avoid any kind of errors

• They allow you to change the experimental design

How are trials used in an experiment?

• Trials are like practice runs or tests that scientists do to ensure their experiments are accurate and reliable

• Trials are used to change the experimental design

• Trials are used to avoid any kind of errors

• Trials are used to save time and resources

Tags

NGSS.MS-ETS1-4

How does replication work?

• You would repeat the same experiment to see if you get different results

• You would change the experiment to get different results

• You would avoid repeating the experiment

• You would repeat the experiment with different variables

What is an example of thermal energy?

• The heat released from burning coal

• The light from a bulb

• The sound from a speaker

• The electricity from a battery

Tags

NGSS.MS-PS1-4