Heat and Temperature (AB Grade 7) Unit Review

What is thermal energy?

• The energy generated by the movement or vibration of particles

• The energy produced by electrical devices

• The energy stored in food and fuels

• The energy transmitted by light

What happens when thermal energy is transferred from one object/substance to another?

• It causes a chemical reaction

• It changes the state of the object

• It moves from a warmer substance/object to a colder one

• It generates electricity

Who invented the first thermometer?

• Isaac Newton

• Galileo

• Anders Celsius

• James Watt

What unit of measurement did Anders Celsius use for his temperature scale?

• Fahrenheit

• Kelvin

• Degree

• Liter

What was the basis of the first precise temperature scale created by Anders Celsius?

• The properties of gases

• The properties of metals

• The properties of water

• The properties of air

At what temperature does water boil at sea level according to the document?

• 0°C

• 69°C

• 100°C

• -273.15°C

What is the temperature called at which water freezes at sea level?

• Absolute zero

• Boiling point

• 0°C

• 69°C

What is the boiling point of water at the top of Mount Everest?

• 0°C

• 69°C

• 100°C

• -273.15°C

What is the term for the coldest possible temperature, known as "absolute zero" in kelvins?

• 0 K

• 69 K

• 100 K

• 273.15 K

What is the freezing temperature of water at sea level in kelvins?

• 0 K

• 69 K

• 273.15 K

• 373.15 K