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Worksheets6th Grade Fall Semester Exam Review
Total questions: 62
Worksheet time: 31mins
Which are examples of an action-reaction pair of forces? Select TWO correct answers.
a swimmer pushing on the water while the water pushes back on the swimmer
a diver pushing down on the diving board while the driving board pushes down on the spring
a tennis racquet pushing on a ball while the ball pushes back on the tennis racquet
a boy climbing up a ladder and holding onto the rails while climbing
a girl flying into the air after pushing down on a trampoline while the force of gravity pulls her back down
Part A: A girl is standing on a skateboard and facing east. If she bends her knees and jumps off the skateboard in the direction (east) she is facing (action force), in which direction will the skateboard move (the reaction force)?
north
south
east
west
Part B: A girl is standing on a skateboard and facing east. She jumps off the skateboard in the direction east. Which of the following BEST supports that the skateboard will move in the opposite direction of the jump?
The law of action-reaction will cause the skateboard to move in the opposite direction of the jump.
The law of action-reaction will cause the skateboard to move in the same direction as the jump.
The law of gravity will force the skateboard to move south after the girl jumps.
The law of gravity will cause the skateboard to move in the opposite direction of the jump.
Carly and Gina are trying out for the school’s drill team. In part of the try-out routine, they are to work together to spin a 3 m flagpole at an equal speed. Carly and Gina know they must apply equal force to the flagpole but disagree on how to do it. Which diagram below would best show how Carly and Gina move the flagpole?
Part A: Francesca mixed three liquids in a jar at the beginning of class. At the end of class, the liquids had separated. Which claim can Francesca make about the liquids? Select the correct answer.
All three liquids have the same density
Two of the liquids have the same density, but the third liquid is heavier
The black liquid is the most dense
The liquids were not mixed well at the beginning of class
Part B: Francesca mixed three liquids in a jar at the beginning of class. At the end of class, the liquids had separated. What evidence from the picture BEST supports the answer in Part A?
The liquid at the top is light blue
The black liquid is at the bottom of the jar
The liquid at the bottom of the jar is the darkest
There is no evidence in the picture
Car races occur throughout the year at the Circuit of the Americas track in Austin, TX. How do you know that energy is conserved when these cars race?
Energy is only transferred and transformed, not created or destroyed
Energy is created as the cars move more quickly
Energy is created when the cars speed up and destroyed when they slow down
Energy is transferred from the racing fuel to the car as it speeds up
A juggler tosses balls into the air as he juggles. Which form of energy is increasing as the balls travel up into the air?
Kinetic energy
Thermal energy
Potential energy
Chemical energy
You drop a tennis ball to the ground and it bounces back to your hand. When is the elastic energy in the ball greatest?
When the ball is released
Just before the ball hits the ground
Just before the ball bounces upward
When the ball returns to your hand
The first image shows before the arrow is shot. The second image shows after the arrow is shot. In which location does the bow have elastic potential energy, and in which location does the arrow have kinetic energy?
Elastic potential energy: C; Kinetic energy: B
Elastic potential energy: A; Kinetic energy: D
Elastic potential energy: B; Kinetic energy: C
Elastic potential energy: D; Kinetic energy: A
Read the statements and identify the direction and net force of the object. Two people are pushing a box in opposite directions. One person is pushing the box with a force of 20 N to the right and the other person is pushing the box with a force of 50 N to the left. What is the net force and direction of the box?
30 N to the left
30 N to the right
70 N to the left
70 N to the right
Read the statements and identify the direction and net force of the object. A box is being pulled by two people to the right. One person is pulling with a force of 6 N and the other person is pulling with a force of 3 N. What is the net force and direction of the box?
3 N to the right
6 N to the right
9 N to the right
9 N to the left
A group of students was handed five flashcards with examples of forces acting on an object. Based on the examples given, which of the flashcards represents balanced forces acting on an object? Choose TWO correct answers.
A plane is traveling in a straight line at a constant speed
A car increases its speed from 20 m/s to 35 m/s
A runner is traveling on a curve during a race
A rock is at rest on the side of a busy highway
A truck traveling at 65 mph slams on its brakes
Which object is experiencing balanced forces? Select TWO correct answers.
An object is changing its direction
An object is moving at a constant speed
An object is stationary
An object is speeding up
An object is slowing down
Which of the following statements accurately describes the forces? Select TWO correct answers.
The forces are balanced
The forces are unbalanced
The net force is 100 newtons
The net force is 20 newtons
The net force is 2,400 newtons
Listed below are eight scenarios in which two forces are acting on an object. Which of the objects would move to the right based on the forces displayed? Select FOUR correct answers.
Object A: 30 N to the right and 30 N to the right
Object B: 40 N to the right and 20 N to the left
Object C: 50 N to the left and 30 N to the right
Object D: 10 N to the right and 15 N to the left
Object E: 20 N to the right and 20 N to the left
A student investigates how far a marble can travel up the incline after rolling down the ramp. Without friction, what is the maximum height the marble will be able to reach on the incline?
4 cm
7 cm
9 cm
10 cm
In the diagram showing Sun, Grass, Grasshopper, and Hawk, where is light energy converted to chemical energy?
Grass
Grasshopper
Sun
Hawk
Which terms describe the energy involved when a bowling ball hits a pin? Select all that apply.
Energy Transfer
Energy Transformation
Kinetic Energy
Gravitational Potential Energy
People climb onto floats at the top of a water park ride. They then ride on a steep flow of water to the bottom of the ride. How can you describe the change in energy of the floats from the top to the bottom of the ride?
Some of the kinetic energy transfers into gravitational potential energy
Some of the gravitational potential energy transfers into kinetic energy
All of the kinetic energy transforms into gravitational potential energy
All of the gravitational potential energy transfers into kinetic energy
Chemical change can be identified by specific observations. Which would most likely indicate a chemical change?
Solid carbon dioxide changes directly into carbon dioxide gas
Rock is slowly worn away by the action of wind and sand
A light green powder forms on the outside of a penny
A mineral is crushed into fine dust and mixed with water
Elements that are generally good conductors of heat and electricity are — Select the correct category.
Metals
Nonmetals
Metalloids
Elements that are generally poor conductors of heat and electricity are — Select the correct category.
Metals
Nonmetals
Metalloids
Elements that are average conductors of heat and electricity are — Select the correct category.
Metals
Nonmetals
Metalloids
Which of the following observations indicate that a chemical reaction has taken place? Select TWO correct answers.
liquid water evaporating as a result of thermal energy from the sun
two solutions being mixed together and a solid is formed
condensation on the window of a house on a cold day
a sugar cube dissolving after it has been dropped in a glass of water
gas bubbles forming as a cake is baking in the oven
What evidence indicates that a chemical change has taken place? Match the description of what the student is seeing during the reaction to the actual change that is taking place. Evidence: A student wafts her hand over the beaker and notices a different smell is detected. Which observation does this evidence support?
production of an odor
something is burning
light is produced
change in temperature
What evidence indicates that a chemical change has taken place? Match the description of what the student is seeing during the reaction to the actual change that is taking place. Evidence: change in temperature. Which observation does this evidence support?
production of an odor
something is burning
light is produced
change in temperature
What evidence indicates that a chemical change has taken place? Match the description of what the student is seeing during the reaction to the actual change that is taking place. Evidence: A student sees the brightness of a fireworks display. Which observation does this evidence support?
production of an odor
something is burning
light is produced
change in temperature
What evidence indicates that a chemical change has taken place? Match the description of what the student is seeing during the reaction to the actual change that is taking place. Evidence: A student sees the thermometer reading drop during a reaction. Which observation does this evidence support?
production of an odor
something is burning
light is produced
change in temperature
When a scientist performs an experiment, there are many changes that can occur. Which observation should she list as a chemical change?
The substance was heated
The shape of the substance changed
The volume of the substance changed
There was a formation of a new substance
Rare Earth Metals are called "rare" because...
They are difficult to access or obtain.
There are not very many of them.
They are easy to find.
They can’t be found on Earth.
Liquids and solids of different densities are shown in the glass. Which substances are the least dense? Select TWO correct answers.
Rubbing alcohol
Canola oil
Water
Wood
Steel nut
Students formed three liquid layers in a glass. Then they dropped three different objects into the liquids and watched to see where the objects would float. Water has a density of 1 g/cm3 . Which components of the density tower have a density of more than 1 g/cm3 ? Select TWO correct answers.
Vegetable oil
Water
Maple syrup
Object A
Object C
Based on the drawing of a graduated cylinder containing colored samples, which statement is a valid conclusion about the density of the three substances?
Water is denser than hexane, and hexane is denser than glycerin.
Hexane is denser than water, and water is denser than glycerin.
Glycerin is denser than water, and water is denser than hexane.
Water is denser than glycerin, and glycerin is denser than hexane.
A student is cutting clay for her earth model using scissors. The sharp scissors slip and seriously cut the student's finger. The student should ______.
complete the model and visit the school nurse after class.
text parents and schedule a doctor's appointment after school.
report the cut immediately to your teacher and follow instructions for treatment.
rinse the cut thoroughly with water and apply a band-aid yourself.
If you do not understand a laboratory procedure, you should__
ask the teacher before proceeding.
figure it out as you perform the lab.
try several methods until something works.
skip the step and go on to the next part.
What unit does an electronic pan balance measure?
centimeters
mass
grams
Students wanted to know if monarch butterflies were more likely to visit milkweed flowers than other kinds of flowers. Which of these steps should the students perform before the other steps?
Write a report about their conclusions.
Research the different kinds of butterflies in the area.
Study the different kinds of flowers that grow in their area.
Observe monarch butterflies and record the kinds of flowers they visit.
A science class is doing an experiment performing the procedure shown: 1. Grind salt into a powder. 2. Heat a small beaker of water. 3. Completely dissolve the salt in the water while stirring. 4. Add silver nitrate solution to water to form a white solid. During which step of this procedure does a chemical change occur?
1
2
3
4
The diagram shows a metal strip connected by wires to a battery and light bulb. Which property of the metal is being tested with this setup?
Luster
Density
Elasticity
Conductivity
What kind of wave does light we see with our eyes travel?
longitudinal wave
mechanical wave
rarefaction wave
transverse wave
Which of our senses do we use to experience longitudinal waves?
sight
touch
sound
smell
Within sound waves, the particles move parallel to the direction the wave is traveling. Sound waves are an example of which kind of waves?
mechanical wave
longitudinal wave
transverse wave
electromagnetic wave
A turtle is swimming in a stream and pushing on the water with a force of 25 newtons. The current of the stream is pushing back on the turtle with a force of 10 newtons. Which of the following statements accurately describe how the motion of the turtle would be impacted if the resisting force of the stream was increased to a force of 15 newtons? Select TWO correct answers.
The direction the turtle is traveling would change.
The speed of the turtle would decrease.
The speed of the turtle would increase.
The turtle would need to apply less force to maintain its original speed.
The turtle would need to apply more force to maintain its original speed.
Observe the image. Which of the following are examples of unbalanced forces? Select the THREE correct answers.
A girl running across the grass
A boy sliding down the slide
A girl swinging on the swing
Children sitting and playing in the sandbox
A skateboard at rest on the path
Which statement concerning metals is correct?
Metals are soluble.
Metals conduct electricity.
Metals form a rigid structure.
Metals are not good conductors.
The picture shows a pot of water. A cook wants to heat the water to 80 degrees. Which tool is needed?
thermometer
ruler
measuring cup
tape measure
The outline of a partial periodic table is shown. In which section of the partial periodic table would you find elements that are semiconductors, meaning they conduct electricity under certain conditions?
Section 1
Section 2
Section 3
Section 4
Lighting a match and baking a cake are two actions that involve chemical changes. Why are these actions considered chemical changes?
They change the state of matter.
They result in creation of a new substance.
They change volume.
They create energy.
Which instrument is used to determine mass? Images show a graduated cylinder, a ruler marked in inches, a digital balance, and a thermometer.
Graduated cylinder
Ruler
Digital balance
Thermometer
Mandy’s teacher asked her to find the volume of a box and said the volume is based on the lengths of the sides. Which tool will BEST help Mandy measure the length of each side of the box?
A meter stick
A balance
A thermometer
A graduated cylinder
Which use is correct for a fire extinguisher in the laboratory?
To extinguish fires
To protect eyes from small particles and chemicals
To protect the body from chemical spills
To protect hands
To rinse eyes in case of chemical contact
Which use is correct for safety goggles in the laboratory?
To extinguish fires
To protect eyes from small particles and chemicals
To protect the body from chemical spills
To protect hands
To rinse eyes in case of chemical contact
Which use is correct for a chemical apron in the laboratory?
To extinguish fires
To protect eyes from small particles and chemicals
To protect the body from chemical spills
To protect hands
To rinse eyes in case of chemical contact
Which use is correct for gloves in the laboratory?
To extinguish fires
To protect eyes from small particles and chemicals
To protect the body from chemical spills
To protect hands
To rinse eyes in case of chemical contact
Which use is correct for an eye wash station in the laboratory?
To extinguish fires
To protect eyes from small particles and chemicals
To protect the body from chemical spills
To protect hands
To rinse eyes in case of chemical contact
If heating substances, long hair in the laboratory must be ____.
Cut short due to safety reasons
Held away from the experiment with one hand
Always neat and parted down the middle
Tied back or kept entirely out of the way with a hair band
A student tried to identify an unknown substance by taking a big breath over the test tube to smell the solution and immediately started to cough. What technique should have been used to prevent this unsafe situation?
Wear goggles
Use the wafting technique
Wash hands immediately
Alert the teacher and go directly to the eye wash station
You have accidentally broken a test tube and spilled a chemical on the table. Which of the following best explains what you should do?
Use water and paper towels to clean up the spill and place the broken test tube in the trash
Throw the glass into the nearest trash can and let the spill air-dry
Quickly dispose of the glass, wipe up the spill with a paper towel, and do not notify the teacher
Caution lab partners to avoid the area while you inform the teacher of the spill and broken glass
Four liquids with different densities are poured into a container. The table shows the densities: olive oil 0.90 g/mL, salt water 1.03 g/mL, turpentine 0.85 g/mL, water 1.00 g/mL. Place the substances in order from least dense to most dense.
Turpentine, olive oil, water, salt water
Olive oil, turpentine, water, salt water
Water, salt water, olive oil, turpentine
Salt water, water, olive oil, turpentine
These elements in the chart share certain physical properties. Based on their physical properties, which element/symbol would best complete this group? Table: Element Name and Symbol rows: Calcium (Ca); Potassium (K); Cobalt (Co); ? (?).
Oxygen (O)
Bromine (Br)
Germanium (Ge)
Tungsten (W)
The diagram shows a swinging pendulum with five different positions labeled 1 through 5 along its arc. Each position contains different amounts of potential and kinetic energy. The potential and kinetic energy of the pendulum can be represented on bar graphs. Which graph correctly shows the amount of energy available at position 3?
Graph A
Graph B
Graph C
Graph D
