CFA: Thermal Energy Ch. 1

What is an average?

• It's a number you get when you subtract one number from another

• A number that summarizes a set of data and can be computed by adding all the numbers in a list and then dividing by the number of numbers in the list

• You divide and subtract a group of numbers

• It's the largest number in a set of data

We use the kinetic energy of molecules to measure.....

• Temperature

• The size of molecules

• Number of atoms

• Other

Tags

NGSS.MS-PS1-4

At absolute zero, what happens to molecules?

• The molecules move around very fast

• Molecules are moving slowly

• Molecules stop moving completely

• Other

Tags

NGSS.MS-PS1-4

True or False: Scientists have created absolute zero conditions in a lab.

• True

• False

Tags

NGSS.HS-PS3-4

Which statement below is TRUE about atoms and molecules?

• Atoms are bigger than molecules

• A molecule is made up of atoms

• Atoms are large dots

Tags

NGSS.MS-PS1-1

True or False: An object with molecules moving at a lower average speed is WARMER than an object with molecules moving at a higher average speed.

• True

• False

Tags

NGSS.MS-PS1-4

True or False: Two objects of different sizes can have the SAME Temperature.

• True

• False

How do molecules in COLD water move compared to molecules in hot water?

• They move the same in cold and hot water

• They move slower and collide with other molecules less often than in hot water

• They move faster than molecules in hot water

Tags

NGSS.MS-PS1-4

True or False: there are molecules all around us.

• True

• False

Tags

NGSS.MS-PS1-1

Find the average of the numbers 5, 10, 6, 2, 2.

• 4

• 25

• 5

• 6