Thermal Energy

The diagram above represents three phases of matter labeled as 1, 2, and 3. Which correctly identifies the phases of matter represented by the diagrams?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-4

The hotter an object is, the __________ the movement of the particles inside it.

• Slower

• Faster

• Fast then slow

• Slow then fast

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

To boil water we must increase its temperature to 100 degrees C. It takes longer to boil a large beaker of water than a small beaker because

• The small beaker contains less water and needs more thermal energy to reach 100 degrees C.

• The large beaker contains more water and needs more thermal energy to reach 100 degrees C.

• The large beaker contains more water and needs less thermal energy to reach 100 degrees C.

• All are correct

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is thermal energy that flows (transfers) from something at a higher temperature to something at a lower temperature?

• Heat

• Temperature

• Thermal

• Average

Tags

NGSS.MS-PS1-4

If molecules in a solid increase their motion sufficiently, it will ________ to become a _________.

• Evaporate, gas

• Melt, liquid

• Freeze, solid

• None of the answers

Tags

NGSS.MS-PS1-4

Why does a gas have more energy than a liquid?

• The molecules are moving more slowly than those in a liquid.

• The molecules are moving more quickly than those in a liquid.

• The molecules in a gas don’t move at all.

• The molecules in liquid don’t move at all.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The ultimate source of energy available to man is the sun. The sun produces thermal energy in the form of ____________.

• molecules

• temperature

• radiation

• gases

Tags

NGSS.MS-PS3-4

A swimming pool at 30 degrees C is at a lower temperature than a cup of tea at 80 degrees C. Why does the pool have more thermal energy than the tea?

• The pool has a heater.

• The pool is already hotter than the tea.

• The pool is in the sun.

• The pool contains more water.

Tags

NGSS.MS-PS3-4

What is the difference between temperature and thermal energy?

• There are no differences, they are the same.

• Thermal energy is the total energy of all the particles in an object and temperature is a measure of the average kinetic energy.

• Thermal energy is a measure of the average kinetic energy and temperature is the total energy of all the particles in an object.

• Thermal energy depends on the number of particles in an object and not the temperature.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

One way that heat flows is by the transfer of energy through

• air

• collisions

• billiards

• heat

Tags

NGSS.MS-PS1-4