Self-Paced Review

Multiple Choice

Which one can be found on the periodic table?

• Compound 
• Element

Multiple Choice

Which one has more than one type of atom in it?

• Element
• Compound 

Multiple Choice

Helium (He) is an example of an:

• Element

• Compound

• Solution

• Mixture

Multiple Choice

How many Hydrogen are in 4H₂O?

• 6
• 8
• 2
• 4

Multiple Choice

How many elements are in C₆H₁₂O₆?

• 1
• 2
• 3
• 4

Multiple Choice

How many atoms are there TOTAL in:
H₂SO₄

• 6
• 5
• 7
• 3

Multiple Choice

How many different atoms

are there in a compound?

• 0

• 1

• 2 or more

• -1

Elements

• only one type of atom

• can be a single atom or more joined together (but always same type!)

Compounds

• two or more atoms bonded together

• different types of atoms

Physical and Chemical Changes

​

Multiple Choice

A change that does not result in a new substance.

• Physical Change
• Chemical Change 

Multiple Choice

Which answer makes a correct statement?

• Physical change only changes the size.
• Physical change only changes the color.
• Physical changes begin and end with the same matter.
• Physical changes change the matter into something total different.

Multiple Choice

Is sqeezing organges to make orange juice a phyical or chemcial change?

• physical
• chemical

Multiple Choice

A group of students investigated physical and chemical changes using paper.  The students recorded their observations in a table.
Which student correctly recorded all the changes that took place?

• Student 1
• Student 2
• Student 3
• Student 4

Multiple Choice

A teacher is demonstrating physical and chemical changes to her class. Which action should she use to demonstrate a chemical change?

• cutting a piece of paper
• folding a piece of paper
• tearing a piece of paper
• burning a piece of paper

Multiple Choice

What happens when a piece of wood burns?

• A physical change takes place.
• A chemical change takes place.
• The wood loses its gravity.
• The wood loses its inertia.

Multiple Choice

Cutting your hair?

• Physical Change
• Chemical Change

Multiple Choice

Rotting bananas?

• Physical Change
• Chemical Change

Multiple Choice

Freezing Juice?

• Physical Change
• Chemical Change

Multiple Choice

Exploding Fireworks?

• Physical Change 
• Chemical Change 

Solute, Solvent & Solution

Miss Dina

Multiple Choice

Which one of these is considered a SOLUTE?

• Salt

• Water

• Salt Water

Solvent

• The substance in which the solute is dissolved is called a solvent.

Multiple Choice

From the diagram in the previous slide which is solvent?

• Salt

• Water

• Salt Water

Solutions can be dilute, concentrated or saturated

Factors affecting rate of solubility

rate of solubility - time taken for a substance to completely dissolve in another substance

Factors affecting rate of solubility

• Temperature

• Rate of strirring

• Size of solute

Multiple Choice

Maria wanted to do a magic trick for her class using sugar water. She poured a little bit of the water on a plate and left it in the sun for 3 days. On the 3rd day, there were little crystals on the plate. What happened?

• The water dissolved leaving behind sugar crystals.

• The water evaporated leaving behind sugar crystals.

• The water separated leaving behind sugar crystals.

• The solution turned into a mixture.

Multiple Choice

The liquid that does the dissolving in a solution

• Solute

• Solvent

• Solution

• Mixture

Multiple Choice

When two or more items are mixed together it is called a....

• Solvent

• Transparent

• Mixture

• Evaporation

Multiple Choice

72 m/s

• Speed
• Velocity
• Acceleration

Multiple Choice

88 m/s north

• Speed
• Velocity
• Acceleration

Multiple Choice

speed with direction

• Speed
• Velocity
• Acceleration

Multiple Choice

47 mph southeast

• Speed
• Velocity
• Acceleration

Multiple Choice

47 mph

• Speed
• Velocity
• Acceleration

Multiple Choice

What is this?

"This airplane is traveling at 500 mph, West"

• Speed

• Velocity

• Acceleration

Multiple Choice

What is this?

A car is traveling 50 mph.

• Speed

• Velocity

• Acceleration

Open Ended

What was his average speed?

Multiple Choice

Cesar drove from Houston to Dallas in 4 hours. Dallas is roughly 250 miles NW of Houston. What was his average speed?

• 1000 mph

• 62.5 mph

• 55 mph

• 60 mph

Multiple Choice

You are practicing for an upcoming 100-meter dash and documenting average speed to see your growth. Trial one you ran at 14 seconds, trial two was at 13.8 seconds, and trial three was at 13.2 seconds. What is the combined average speed of all three trials? (round answer to hundredth place – to the second decimal)

• 7.58 meters/second

• 7.14 meters/second

• 7.32 meters/second

• 7.25 meters/second

Multiple Choice

Jose Altuve is at batting practice for the Houston Astros.

What was the average speed of all three hits?

• 32 m/sec

• 20.7 m/sec

• 24 m/sec

• 27 m/sec

Multiple Choice

How long did it take this object to travel 10 m?

• 0 s
• 10 s
• 15 s
• 20 s

Multiple Choice

What is happening from point D to E?

• The object is moving constantly 

• The object is moving FAST
• The object is decelerating
• The object is NOT moving

Multiple Choice

What is this graph showing?

• Constant Speed
• Acceleration (speeding up)
• Deceleration (slowing down)
• No motion

Balanced and Unbalanced Forces - More Math

​

Multiple Choice

Which of the blocks above has balanced forces acting on it?

• A
• B
• C
• D

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. 

Example: person “at rest”​

These forces are balanced (weight and normal force are equal)

The person is “at rest”.

If the chair could not balance the force of gravity she would fall through.​

Balanced forces​

For forces to be balanced then:

• The magnitude (size) of the two forces must be equal.

• The direction of the two equal forces must be opposite.

The objects motion will not change.​

Multiple Choice

Which of these is an unbalanced force?

• Resting against a wall

• Standing on the ground

• Apple falling to the ground

• Lying in bed

Multiple Choice

What is Newton's First Law known as? The Law of

• Friction

• Mass

• Inertia

• Gravity

Multiple Choice

What is Newton's First Law

• F=ma

• Every action has an equal and opposite reaction

• An object at rest stays at rest, an object in motion stays in motion. 

• Friction 

Multiple Choice

Balanced or unbalanced?

• balanced

• unbalanced

Multiple Choice

An object's velocity can be changed by changing its speed, its direction, or both.

• True

• False

Temperature, Thermal Energy, & Heat

Forces Ch 5 L 1 p. 136-139

Multiple Choice

The temperature of a substance increases as___.

• the substance expands
• the average kinetic energy of its particles increases
• the substance's volume increases
• the substance's mass increases

Multiple Choice

What tool do we use to measure temperature?

• Thermometer

• Ruler

• Balance

• Magnifying Glass

Multiple Choice

What is the total energy of all of the particles in an object?

• Thermal Energy

• Heat

• Temperature

Multiple Choice

Which thermometer shows a very hot day in degrees Fahrenheit?

• Blue
• Green
• Red
• Red and Green

Multiple Choice

Which thermometers temperature is about  25° Celcius?

• Blue
• Green
• Blue
• Blue and Green

Types of energy transfers

• Convection: transfer that happens in fluids such as liquids and gases. It is a movement of hot moving up and cool moving down, or circulating in a system.

• Conduction: transfer of energy that happens when matter comes in contact with other matter. Like when and ice cube melts in your hand.

• Radiation: transfer of energy through electromagnetic waves. This is when you feel heat off of a fire or when you feel the warmth of the sun when you are outside.

Multiple Choice

What is the definition of CONDUCTION?

• When heat is transferred from objects like rays of light or electromagnetically.
• a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
• When heat transfers from objects that are touching.
• When heat transfers through the heater or AC in your house.

Multiple Choice

What type of heat transfer takes place when you touch a warm mug of hot chocolate?

• Radiation

• Convection

• Conduction

• None of the above

Multiple Choice

Conduction requires

• Electricity

• the electromagnetic spectrum and particles

• air or water flow

• direct contact

Match

Match the example to the type of heat transfer.

• conduction

• convection

• radiation

burning hand when touch hot stove

turning on a fan to cool a room

puddle evaporating on a sunny day

• burning hand when touch hot stove

• turning on a fan to cool a room

• puddle evaporating on a sunny day

Multiple Select

The steam coming out of the hot pot is an example of what kind of thermal transfer___________?

• Radiation

• Conduction

• Convection

Multiple Choice

Why do planets orbit around the sun?

• Because the Gravitational Pull. and they are smaller than the sun

• Because they cold and want to be warm

• The planets don't actually orbit around the sun

• Planets are attracted to the radiation from the sun, but they will pull away without the radiation.

Multiple Choice

What are the four inner planets?

• Mars, Jupiter, Earth, Venus

• Venus, Mars, Earth, Mercury

• Saturn, Jupiter, Uranus, Earth

• Jupiter, Neptune, Uranus, Saturn

Multiple Choice

Often called shooting stars.

• asteroid
• meteoroid
• comet
• meteor

Multiple Choice

Made of ice, dust and gas

• asteroid
• meteoroid
• comet
• meteor

Multiple Choice

The natural dividing line between the inner and outer planets is called the:

• Asteroid Belt

• Kuiper's Belt

• Oort Cloud

Gravity in Our Solar System 1:

Gravity Variables

Objective: I will be able to explain how mass and distance affect the force of gravity between two solar system bodies.

Variable 1: Mass

• If the less mass the objects have, the weaker the gravity will be between them.

• The more mass the objects have, the greater the gravity between them.

Multiple Choice

The ________ mass two objects have, the greater the gravity between them.

• more

• less

Multiple Choice

Which two objects would have a stronger gravitational attraction?

Multiple Choice

When a person drops a ball, it is attracted to the ground. Which statement best explains why the ball falls to the ground?

• The Earth has more mass than the person. The strength of gravity is stronger between the ball and the Earth.

• The Earth has more mass than the person. The strength of gravity is stronger between the person and the ball.

Variable 2: Distance

• The closer objects are, the stronger the gravity is between them.

• The farther apart objects are, the weaker the gravity is between them.

Multiple Choice

Gravity is weaker if objects are _____________.

• closer together

• farther apart

Multiple Choice

Which two objects would have a stronger gravitational attraction?

Multiple Choice

Which object will experience the weakest gravitational pull towards Object X?

• Object A

• Object B

• Object C

Multiple Choice

What is common to the inner terrestrial planets?

• They are all made of gas
• They are all rocky and have solid surfaces.
• They are all located in the outer solar system
• They are all covered in water

Multiple Choice

Which best describes the asteroid belt?

• A region of space between the orbits of Mars and Jupiter where many asteroids are found.
• A region of space between the orbits of Saturn and Uranus where many asteroids are found.
• A region of space beyond the orbit of Neptune where many asteroids are found.
• A region of space between the orbits of Earth and Venus where many asteroids are found.

Multiple Choice

How is the astronomical unit (AU) defined?

• Distance from the Earth to the Moon
• Average distance from the Earth to the Sun
• Distance from the Earth to Jupiter
• Distance from the Earth to Mars