Midterm Review

Midterm Review

By Aguado Angelica

Multiple Choice

What is a physical change?

• A change in which a substance undergoes a change in its physical properties is called a physical change.

• A change in which a substance undergoes a change in its chemical properties is called a physical change.

Multiple Choice

Is this an example of a physical or chemical change?

• physical

• chemical

Multiple Choice

What two types of measurements make up DENSITY? 

• Mass and Volume
• Temperature and Mass
• Grams and Centimeters
• Volume and Weight

Multiple Choice

True or False:  The density of a specific type of material never changes.  

• True
• False

Multiple Choice

Which of these examples is a physical change?

Multiple Choice

A non-contact force is between

• two objects that aren't touching

• two objects that are touching

• the ground and wheels

• you and me

Multiple Choice

Friction is a

• Contact Force

• Myth

• Non-contact Force

Multiple Choice

What is a chemical reaction?

• A change in which one or more new substances are formed is called a chemical change. A chemical change is also called a chemical reaction.

• A change in which two or more new substances are formed is called a chemical change. A chemical change is also called a chemical reaction.

Multiple Choice

Gas giants

• Inner planets
• Outer planets
• Both
• Venus

Multiple Choice

The three examples pictured are of

• Non-contact Forces

• Contact Forces

Multiple Choice

What physical property doesn't change no matter the size of the object?

• Mass

• Freezing point

• Volume

• Malleability

Multiple Choice

The inner planets are also called...

• terrestrial planets
• gas giants

Multiple Choice

Look at this image.  Which object has the LOWEST density in water? How? 

• The Ping Pong Ball because it floats to the top 
• The bolt because it has sunk to the bottom
• The soda cap because it is not just full of air like the Ping Pong ball

Multiple Choice

What are the Inner Planets?

• Mercury, Mars, Earth, and Venus
• Earth, the Moon, Mars
• Neptune, Pluto, Earth
• :)

Multiple Choice

The chemical formula: N₂ would represent what type of substance?

• Element

• Compound

• Mixture

• Molecule

Multiple Choice

The force between the phone and the mount is a

• contact force

• non-contact force

Multiple Choice

Is this a physical or chemical change?

• chemical change

• physical change

Multiple Choice

This type of mixture looks the same throughout.

• Homogenous

• Heterogeneous

Multiple Choice

A wave with a large wavelength will have a ______ frequency and _____ energy

• high, low
• high, high
• low, high
• low, low

Multiple Choice

Select the correct order of waves on the EMS 

• Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma
• Gamma, X-ray, Ultra, Vis, Infra, Micro, Radio
• Vis, Micro, Infra, Ultra, X-ray, Gamma, Radio
• Micro, Radio, Vis, Infra, Ultra, X-ray, Gamma

Multiple Choice

What happens to the energy of a photon as the frequency of the wave increases? 

• The energy increases
• The energy decreases
• The energy stays the same 

Multiple Choice

The order of the planets is:

• Mars,Venus,Earth,
  Mercury,Saturn
  Jupiter, Uranus, Neptune
• Earth,Venus,Mars
  Jupiter, Neptune,
  Mercury,Saturn,
  Uranus
• Mercury,Venus,Earth
  Mars,Jupiter,
  Saturn,Uranus
  Neptune
• Mercury, Earth, Venus, Mars, Saturn, Jupiter, Neptune, Uranus

Multiple Choice

Which of the following has the shortest wavelength?

• microwaves

• UV rays

• Infrared

• the color blue

Multiple Choice

Which of the following has the lowest frequency?

• The color blue

• The color green

• The color yellow

• The color violet

Multiple Choice

Which of the following has the shortest wavelength?

• microwaves

• UV rays

• Infrared

• the color blue

Multiple Choice

Maria’s father started a fire in the fireplace. He crumpled some paper, lit a match, and soon the logs in the fireplace were burning. In this case, the stored chemical energy in the logs was changed into

• electrical energy.

• mechanical motion.

• heat and light energy.

• electrical and heat energy.

Multiple Choice

Which is true about hypothesis?

• A. It may reject or accepts your prediction.

• B. It is an educated guess or possible answer to the question.

• C. It summarizes the result on the experiment.

• D. It is the final answer to the question.

Multiple Choice

What does ROYGBIV stand for?

• Red, Orange, Yellow, Green, Blue, Indigo, Violet

• Red, Orange, Yellow, Green, Black, Indigo, Violet

• Red, Orange, Yellow, Green, Purple

• Red, Orange, Yellow, Green, Blue, Indigo, Plum

Multiple Choice

Wylie Coyote is not trying to skate, so what force is helping him move so gracefully?

• Gravity

• Magnetism

• Friction

• energy

Multiple Choice

Which of the following is NOT an example of a noncontact force?

Multiple Choice

What is the net force?

• 10 N
• 0 N
• 25 N
• 1 N

Multiple Choice

If these teams are pulling with the same amount of force what will happen?

• The boy in blue will win.
• They will not move at all.
• The boy in red will win.
• Both will fall down.

Multiple Choice

Which type of force is being used by the dog?

• push

• pull

• gravity

• friction

Multiple Choice

Balanced or Unbalanced?

• Balanced 
• Unbalanced

Multiple Choice

What type of data is shown here?

• qualitative
• quantitative

Multiple Select

What are two examples of a physical model?

• A simulation of future climate conditions

• A map of the Earth

• A 3-D model of a human brain

• Thinking of a computer as an electronic brain

Multiple Choice

"A conceptual, physical, or mathematical portrayal or description of something in the real world." what key term fits this definition?

• Model

• Quantity

• Ratio

• Scale model

Multiple Choice

This sphere includes the continents, the ocean floor, all the rocks on the surface, and all of the sand in the deserts. 

• Hydrosphere 
• Biosphere 
• Atmosphere 
• Geosphere 

Multiple Choice

Body of air surrounding our planet. 

• Hydrosphere 
• Biosphere 
• Atmosphere 
• Geosphere 

Multiple Choice

What will cause an object to move?

• Applied forces
• Balanced forces
• Unbalanced forces

Multiple Choice

Which will most likely occur when raw egg is placed on black pavement on a hot, summer day?

• The pavement will conduct the heat and cook the egg.
• The egg will reflect the heat and make the pavement hotter underneath.
• The egg will absorb the heat  and leave the pavement hotter underneath.
• The pavement will absorb the heat from the egg, and the egg will stay raw.

Multiple Choice

Why does a car accelerate as it round a corner at a constant speed?

• Its direction changes
• It doesn't
• It slows down
• Its speeds up  

Multiple Choice

A negative acceleration means that your object is _____. 

• not accelerating
• not moving
• speeding up 
• slowing down 

Multiple Choice

Composed of all the water on or near the earth

• Hydrosphere 
• Biosphere 
• Atmosphere 
• Geosphere 

Multiple Choice

A positive acceleration means that your object is _____.

• not accelerating

• not moving

• speeding up

• slowing down

Multiple Choice

The heat from a lamp allows a lizard to remain warm. This is an example of which type of heat transfer?

• radiation
• conduction
• convection
• insulation

Multiple Choice

Review and interpret information. Examine carefully by separating into parts and studying.

• Conclusion
• Analyze
• Data
• Independent Variable

Multiple Choice

Which best describes the process of convection?

• Convection is the primary way  heat travels  through rays.
• Convection is the primary way heat travels  through metals.
• Convection is the primary way heat travels  through appliances.
• Convection is the primary way heat travels  through liquids and gasses.

Multiple Choice

Maria wants to know if tomato seed grows faster than a monggo seed. She then ask her father, which is a farmer about her question. Which steps of scientific method does Maria performs?

• A. Identify the problem and make a conclusion.

• B. Identify the problem and make a hypothesis.

• C. Identify the problem and conduct an experiment.

• D. Identify the problem and do background research.

Multiple Choice

Which of these contains steps in the right order?

• Ask a question, state your hypothesis, research, experiment, analyze, make a conclusion
• State your hypothesis, ask a question, research, experiment, analyze, make a conclusion
• Ask a question, research, state your hypothesis, experiment, analyze, make a conclusion
• State your hypothesis, ask a question, research, make a conclusion, experiment, analyze

Multiple Choice

If you are testing the buoyancy of a cotton ball and you leave one plain, cover one half in oil, and cover the third in oil completely then place each in water, what is the variable?

• water
• cotton ball
• amount of oil
• time

Multiple Choice

What is the difference between replication and repetition of an experiment?

• Replication means researchers must be able to carry out the exact same procedure and get the exact same results.

• Replication means performing multiple trials for the same experiment.

• They are the same.

• Repetition is done by others for the same experiment.

Multiple Choice

Why must scientific investigations be replicable?

• To prove the reliability of the results.

• To confirm ideas and theories.

• To prove its validity within the scientific community.

• To improve the investigation each time.

Multiple Choice

H_{2 is an example of a(n)...}

• Element

• Compound

• Molecule

• Heterogeneous Mixture

Multiple Choice

Which of the following is an example of a heterogenous mixture?

• soap

• a salad with lettuce, olives, and tomatoes

• cup of coffee

• water

Multiple Choice

• Element

• Compound

• Homogeneous Mixture

• Heterogeneous Mixture

Multiple Choice

Which of the following lists only elements?

• H₂O + OH, MgCl₂
• H₂O, KF, Ne
• KCl, Ag, Au
• K, Cl, N

Multiple Choice

What is CO₂ and example of?

• element

• molecule

• compound

Multiple Choice

Jay combines water, sugar, and lemon juice to form lemonade. What type of substance was made?

• Element

• Molecule

• Mixture