MRJH Test Review 3.1

​MRJH Test Review 3.1

By Myra Lopez

Topics

Conduction, Convection, Radiation
Elements and compounds
Newton's first law
Hot to Cold
Physical and Chemical Change
Velocity

Multiple Choice

Which direction is heat flowing in the picture?

• from the hand to the ice
• from the ice to the hand
• heat is not being transferred
• there is no way to tell

Multiple Choice

The earth receives heat energy from the sun by _______________, which is the transfer of energy as electromagnetic waves.

• radiation
• convection
• conduction
• greenhouse effect

Multiple Choice

Walking on the warm sand sand with your bare feet demonstrates this type of heat transfer. 

• conduction
• convection
• radiation

Multiple Choice

Near the ceiling of a room the air is warmer. The warm air rises because of

• conduction

• convection

• radiation

Multiple Choice

In heat transfer, heat always flows from the _______________ substance to the _______________ substance.

• Hotter to colder

• Colder to hotter

• Hotter to hotter

• Colder to colder

Multiple Choice

An iron is placed on your clothes to smooth out the wrinkles. The iron transfers heat to your clothes through

• conduction

• convection

• radiation

Multiple Choice

You get sunburned due to __________ from the sun.

• conduction

• convection

• radiation

Multiple Choice

Near the ceiling of a room the air is warmer. The warm air rises because of

• conduction

• convection

• radiation

Multiple Choice

Kinetic energy is the energy of————-

• Temperature

• Ocean

• Lotion

• Motion

Multiple Choice

The total energy of all the particles in a sample of matter is called —————

• Total Energy

• Thermal Energy

• Kinetic Energy

• Particle Energy

Multiple Choice

Thermal energy is transferred from————-

• A cooler object to a hotter one

• A hotter object to a cooler one

Multiple Choice

Molecules with more kinetic energy move ———- than molecules with less kinetic energy

• Lower

• Faster

• Higher

• Slower

Multiple Choice

________________is a measure of the average kinetic energy of the individual particles in an object. 

• Temperature
• Heat

Multiple Choice

What does this graph represent?

• Constant Speed
• Acceleration
• Not moving

Multiple Choice

What does this graph represent?

• Constant speed
• Acceleration
• Not moving

Multiple Choice

Match the description to the graph:

"The car is coming back."

Multiple Choice

Match the description to the graph:

"The car is slowing down."

Multiple Choice

A dog runs on the sidewalk 9 mi/hr.

• Speed
• Acceleration
• Velocity

Multiple Choice

While going to school, a student walks an average of 5 km/hr west for 12 blocks.

• Speed
• Acceleration
• Velocity

Multiple Choice

Speed in a given direction is the definition of ____. 

• Speed
• Velocity
• Acceleration
• Direction

Multiple Choice

Distance over Time is the definition of ___. 

• Speed
• Velocity
• Acceleration
• Direction

Multiple Choice

A ball rolling west at 5 cm per second is an example of ____. 

• Speed
• Velocity
• Acceleration
• Direction

Multiple Choice

What is the definition of chemical change?

• any change that results in the formation of new chemical substances. 
• changing clothes
• matter cannot be created or destroyed, only change form
• changes affecting the form of a chemical substance, but not its chemical composition.

Multiple Choice

Why are metals useful for making electrical wire?

• Metals do not bend.
• Metals hold much heat.
• Metals are insulators.
• Metals are conductors.

Multiple Choice

Which is NOT an insulator.

• Wool
• Plastic
• Copper
• Glass

Multiple Choice

Something electricity can't move through is called a(n) ______.

• conductor
• wire
• shoe
• insulator

Multiple Choice

• Element

• Compound

• Mixture

Multiple Choice

• Element

• Compound

• Mixture

Drag and Drop

What does the subscript in a chemical formula tell you?

Placeholder

Drag these tiles and drop them in the correct blank above

How many molecules are present

How many atoms are present

How many elements are present

How many neutrons are present

Multiple Choice

How many elements are in this chemical formula?

$$H_2SO_4$$  

• 1

• 2

• 3

• 4

Multiple Choice

How many atoms of Carbon are in this formula? $$C_{6\ }H_{12}O_6$$  

• 6

• 1

• 12

Multiple Choice

What is the difference between Co and CO?

• CO is an element but Co is a compound

• Nothing is different. They are the same thing.

• CO is two elements and Co is only one element

• Co is not a pure substance

Multiple Choice

How many different elements are in the compound?

• 12

• 3

• 24

• 6

Multiple Choice

Balanced or unbalanced?

• balanced
• unbalanced

Multiple Choice

How will this object move? 

• It won't move. 
• It will move to the right. 
• It will move to the left. 
• It will move up. 

Multiple Choice

How will this object move? 

• It won't move. 
• It will move to the right. 
• It will move to the left. 
• It will move in both directions. 

Multiple Choice

What are the balanced forces?

• forces that are not equal in size and are opposite in direction

• forces that are equal in size and opposite in direction.

Multiple Choice

What are the unbalanced forces?

• forces that are equal in size and opposite in direction.

• forces that are not equal in size and are opposite in direction

Multiple Choice

If an object is not moving the forces acting upon it are _____________

• unbalanced
• weak
• balanced
• Hulk Smash!

Multiple Choice

What will cause an object to move?

• Applied forces
• Balanced forces
• Unbalanced forces

Multiple Choice

When an object does not want to change motion, it is called ________________.

• inertia

• motion

Multiple Choice

Kicking a ball is an example of ________________.

• force

• speed

Multiple Choice

Velocity measures _________________________

• speed

• speed and direction

Multiple Choice

Newton's first law states that an object in motion stays in motion and an object at rest stays at rest unless acted on by ______________________________.

• a balanced force

• an unbalanced force