Quiz about Temperature and Thermal Energy

Question 1

What is a molecule?

Accepted Answer

A group of atoms joined together in a particular way

Answer

A single atom

Answer

A type of chemical reaction

Answer

A form of energy.

Question 2

Fill in the blank: A molecule is ______.

Accepted Answer

a group of atoms joined together in a particular way

Answer

a single atom

Answer

a type of chemical reaction

Answer

a form of energy

Question 3

What is the chemical formula for a water molecule?

Accepted Answer

H2O

Answer

CO2

Answer

O2

Answer

H2

Question 4

A water molecule is made up of one ______ atom and two hydrogen atoms.

Accepted Answer

oxygen

Answer

nitrogen

Answer

carbon

Answer

helium

Question 5

In the simulation, food coloring is added to both water samples. The food coloring spreads more quickly through the ______ water than the cold water.

Accepted Answer

hot

Answer

cold

Answer

lukewarm

Answer

frozen

Question 6

What happens to the molecules of a substance when it gets hotter?

Accepted Answer

B) They move faster

Answer

A) They move slower

Answer

C) They stop moving

Answer

D) They move at the same speed.

Question 7

When a thing gets hotter, its molecules are moving ____.

Accepted Answer

faster

Answer

slower

Answer

not at all

Question 8

What happens to the movement of molecules when a thing gets colder?

Accepted Answer

They move slower

Answer

They move faster

Answer

They stay the same

Answer

They disappear

Question 9

When a thing gets colder, its molecules are moving ____.

Accepted Answer

slower

Answer

faster

Answer

at the same speed

Question 10

What does temperature measure?

Accepted Answer

The average speed of the molecules of a thing

Answer

The color of an object

Answer

The weight of an object

Answer

The size of an object.

Question 11

Temperature is a measure of the _______ of the molecules of a thing.

Accepted Answer

average speed

Answer

color

Answer

weight

Answer

size

Question 12

What is the first step in finding the average of a set of numbers?

Accepted Answer

Add all the numbers

Answer

Count the numbers

Answer

Divide the total by the number of numbers

Answer

Subtract the smallest number.

Question 13

Fill in the blank: To find the average, you first add all the numbers to get the total, then count the number of numbers, and finally, you divide the total by the number of numbers. If the total is 12 and the number of numbers is 3, the average is ____.

Accepted Answer

B) 4

Answer

A) 3

Answer

C) 5

Answer

D) 6

Question 14

What is kinetic energy?

Accepted Answer

The energy an object has because it is moving

Answer

The energy stored in an object at rest

Answer

The energy an object has due to its position

Answer

The energy released during a chemical reaction.

Question 15

Kinetic energy is the energy that an object has because it is ______.

Accepted Answer

moving

Answer

stationary

Answer

heated

Answer

cooled

Question 16

What happens to the molecules of a substance when it gets hotter?

Accepted Answer

B) They move faster and have more kinetic energy.

Answer

A) They move slower and have less kinetic energy.

Answer

C) They stop moving.

Answer

D) They move at the same speed.

Question 17

When a thing gets hotter, its molecules are moving ______ and have more kinetic energy.

Accepted Answer

faster

Answer

slower

Answer

at the same speed

Question 18

What happens to the molecules of a substance when it gets colder?

Accepted Answer

B) They move slower and have less kinetic energy.

Answer

A) They move faster and have more kinetic energy.

Answer

C) They move at the same speed and have the same kinetic energy.

Question 19

When a thing gets colder, its molecules are moving ______ and have less kinetic energy.

Accepted Answer

slower

Answer

faster

Answer

at the same speed

Question 20

What does temperature measure in an object?

Accepted Answer

The average kinetic energy of the molecules

Answer

The color of the object

Answer

The weight of the object

Answer

The total kinetic energy of the molecules

Question 21

Temperature is a measure of the average _______ of the molecules of an object.

Accepted Answer

kinetic energy

Answer

color

Answer

weight

Answer

volume

Question 22

Which sample is hotter?

Accepted Answer

Sample A

Answer

Sample B

Answer

Both are the same

Answer

None of the above

Question 23

Fill in the blank: Sample B is ______ than Sample A.

Accepted Answer

colder

Answer

hotter

Answer

the same temperature

Answer

none of the above

Question 24

What is the relationship between temperature and particle movement?

Accepted Answer

Higher temperature means faster particles

Answer

Higher temperature means slower particles

Answer

Temperature does not affect particle movement

Answer

Lower temperature means faster particles.

Question 25

In the diagram, which sample represents a hotter temperature?

Accepted Answer

Sample D

Answer

Sample C

Question 26

Which sample has a higher average kinetic energy?

Accepted Answer

Sample E

Answer

Sample F

Answer

Both have the same average kinetic energy.

Question 27

Fill in the blank: The average kinetic energy of Sample F is ____.

Accepted Answer

B) 3

Answer

A) 2

Answer

C) 4

Question 28

What is the definition of the term 'system'?

Accepted Answer

A set of interacting parts forming a complex whole

Answer

A single part of a whole

Answer

A random collection of items

Answer

A simple structure

Question 29

Fill in the blank: A 'system' is a set of interacting parts forming a ______ whole.

Accepted Answer

complex

Answer

simple

Answer

random

Answer

isolated

Question 30

What is the definition of 'collision'?

Accepted Answer

The moment when two objects hit each other

Answer

The moment when two objects move away from each other

Answer

The moment when two objects stop moving

Answer

The moment when two objects change color.

Question 31

Fill in the blank: A 'collision' is the moment when two objects ______.

Accepted Answer

hit each other

Answer

change color

Answer

stop moving

Answer

move away from each other

Question 32

What happens when two things are in contact according to the key concept?

Accepted Answer

B) Their molecules collide, and kinetic energy transfers from the faster-moving molecules to the slower-moving molecules.

Answer

A) Their molecules repel each other.

Answer

C) Their molecules stop moving.

Answer

D) Their molecules merge into one.

Question 33

When two things are in contact, their molecules collide, and kinetic energy transfers from the ______-moving molecules to the slower-moving molecules.

Accepted Answer

faster

Answer

slower

Answer

equal

Answer

stationary

Question 34

What does the term 'transfer' mean?

Accepted Answer

To move from one object to another or one place to another

Answer

To stay in one place

Answer

To create energy

Answer

To destroy energy

Question 35

Fill in the blank: The word 'transfer' means to ______ from one object to another or one place to another.

Accepted Answer

move

Answer

stay

Answer

create

Answer

destroy

Question 36

What does the principle of energy conservation state?

Accepted Answer

Energy is not created or destroyed.

Answer

Energy is created and destroyed.

Answer

Energy is only created.

Answer

Energy is only destroyed.

Question 37

Energy is not created or destroyed. Therefore, as energy transfers, it _______ in one part of the system as it decreases in another part of the system.

Accepted Answer

B) increases

Answer

A) disappears

Answer

C) remains constant

Answer

D) decreases

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