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WorksheetsPhysical Science Final Exam 2021
Total questions: 100
Worksheet time: 2hrs 35mins
Salt has which type of bonds
covalent bond
Hydrogen bond
Ionic bond
Metallic bonds
Identify the type of reaction: A + B-----> AB
combustion
synthesis
decomposition
single-displacement
What is the difference between the formulas for speed and velocity ?
Speed is slow
Speed had direction
Velocity is only displacement
velocity has direction
Most reactions go faster at a higher temperature
True
False
When a chemical reaction occurs, atoms are
ionized
rearranged
destroyed
vaporized
The unit for speed is
mph
ft/s2
m/s
v/t
Which is an example of balanced force acting on an object
a car turning a corner
a kangaroo jumping
a leaf lying on the ground
a cyclist slowing down
Using lubricants on engine parts is an example of reducing
force
motion
friction
acceleration
When an object slows down, its acceleration is
positive
centripetal
negative
constant
Weight is best described as
an object's resistance to acceleration
what causes an object to fall
the downward force exerted on an object due to gravity
a force solely dependent on an object's mass
Which unit is used to measure acceleration ?
m/s
ms
m/s2
m2/s2
Which object has the greatest inertia ?
a tennis ball
a bowling ball
a beach ball
a volleyball
The law that states for every action force there is an equal and opposite reaction force is
Newton's first law of motion
Newton's second law of motion
Newton's third law of motion
the law of converation of momentum
When you stretch a rubber band, the type of potential energy is....
chemical
gravitational
elastic
nuclear
Temperature measures __________ energy of particles.
thermal
kinetic
potential
electrical
What type of heat transfer makes a hot pan cook an egg?
convection
conduction
radiation
transverse
What type of heat transfer comes from the sun?
convection
conduction
radiation
transverse
What are the gray particles in the image of an atom?
dust
protons
neutrons
electrons
What is the term used to label the number of protons in the nucleus?
pi
atomic number
number 1 teacher
mass number
How many protons in strontium?
38
88
50
What kind of properties can only be observed when a substance changes into a different substance?
physical properties
chemical properties
liquid properties
real properties
Which state of matter is described as having fast-moving high energy particles that are far apart?
solid
liquid
gas
Ohio
A rock on Earth has a mass of 750 kg and a weight of 7,350 N. If the rock is taken into outer space, how will its mass and weight be affected?
The weight and mass will remain the same because they are not altered by the effects of gravity.
The weight will remain the same, but the mass will change because of the effects of gravity.
The mass will be 76.5 kg, and the weight will increase because of the effects of gravity.
The mass will be 750 kg, but the weight will decrease because of the effects of gravity.
This diagram shows a 40-kg object being pulled in one direction while friction acts on it in the opposite direction. What is the net force on the object?
160 N
140 N
120 N
20 N
How are the processes of melting and freezing similar?
They are both processes that physically change a substance.
They are both processes that chemically change a substance.
They are both processes where heat is released by a substance.
They are both processes where heat is absorbed by a substance.
The diagram below is the Bohr model of an atom. Which best describes this atom?
It has 6 electrons.
It has a positive charge.
It has 6 valence electrons.
It has a full outermost energy level.
How many valence electrons are in a neutral atom of nitrogen (N)?
2
3
5
15
Which represents a balanced chemical equation?
CO2 + 2H2O → 2CH4 + 2O2
CH4 + O2 → CO2 + H2O
CH4 + 2O2 → CO2 + 2H2O
CO2 + H2O → CH4 + O2
What describes qualities or characteristics?
Qualitative Data
Quantitative Data
Data
Results
What measures in the form of numbers?
Qualitative Data
Quantitative Data
Data
Results
What is the first step in the scientific method?
Conclusion
Research
Observe
Experiment
The use of one of the senses or measurement to gather data:
Research
Hypothesis
Experiment
Observation
What is energy?
The ability to do work
A force
Electricity
The ability to transform work
Ava pushed a chair and it slid across the floor. The chair gradually slowed down and stopped after moving 10 meters.
Why did the chair stop moving?
The floor absorbs force from the chair.
The floor exerted a force that is opposite to the direction of the chair’s motion.
All objects stop moving because their natural state is to be still.
The chair ran out of force.
At lunch, Veronica passed the ketchup to her sister Jessica by sliding it across the wooden table. The ketchup gradually slowed down and stopped after moving 9 centimeters. Why did the ketchup stop moving?
The ketchup ran out of force.
The table exerts a force that is opposite to the salt ketchup's motion.
The table absorbs force from the ketchup.
All objects stop moving because their natural state is to be still.
Object B is moving at 3 cm/s to the right and hits Object A which is at 0 cm/s. Both objects have a mass of 1 kg. What will happen to both objects after the collision?
Object B will stop moving and Object A will move to the right.
Object B and Object A will move in opposite directions.
Both Object A and Object B will stop moving.
Object B and Object A will move to the right.
How does force strength affect the change of velocity of an object?
A stronger force causes a smaller change in velocity.
A stronger force causes a greater change in velocity.
A weaker force causes a greater change in velocity.
A weaker force causes no change in velocity.
A pod collided with the space station, both objects experienced a force.
The pod experienced a stronger force than the space station in the opposite direction.
Both the pod and the space station experienced the same strength force in the same direction.
Both the pod and space station experienced the same strength force but in opposite directions.
The space station experienced a stronger force than the pod in the opposite direction.
When a bumper car carrying a person with more mass collides with a bumper car carrying a person with less mass, what happens?
The person with less mass will experience a weaker force.
The person with more mass will move farther after the collision.
The person with more mass will experience a stronger force.
The person with less mass will move farther after the collision.
A box was slid across the floor. The box gradually slowed down and stopped after moving 3 feet. Why did the box stop moving?
All objects stop moving because their natural state is to be still.
The floor exerted a force that is opposite to the direction of the box's motion.
The floor absorbs force from the box.
The box ran out of force.
At dinner, Hans passed the pepper shaker to his sister Jessica by sliding it across the wooden table. The pepper shaker gradually slowed down and stopped after moving 10 centimeters.
The pepper shaker ran out of force
The table exerts a force that is opposite to the pepper shaker’s motion.
The table absorbs force from the pepper shaker.
All objects stop moving because their natural state is to be still.
The diagram above shows the repeating groups of atoms that make up two samples. Both samples are red powdery solids at room temperature. Will the other properties of the two samples be the same or different? (Examples of properties are smell, color, and the temperature at which a substance melts.)
The other properties will be different because there are more repeating groups of atoms in Sample 1.
The other properties will be the same because both samples are red at room temperature.
The other properties will be the same because both samples are powdery solids at room temperature.
The other properties will be same because the repeating groups of atoms that make up the two samples are the same.
The diagram above shows the repeating groups of atoms that make up two samples. Both samples are solids at room temperature. Will the other properties of the two samples likely be the same or different? (Examples of properties are smell, color, and the temperature at which a substance melts.)
The other properties will likely be different because there are more repeating groups of atoms in Sample 2.
The other properties will likely be different because the repeating groups of atoms that make up the two samples have different numbers of atoms.
The other properties will likely be the same because the repeating groups of atoms that make up the two samples have the same types of atoms.
The other properties will likely be the same because both samples are solids at room temperature.
Andres is a chemist working at a company that makes ink. To make a new kind of ink, Andres mixed two liquid substances together in a sealed container. The diagram above shows the repeating groups of atoms that make up the two starting substances.
After mixing, Andres found two solid substances in the sealed container. (Nothing had escaped.) Which of the diagrams to the left shows the repeating groups of atoms that make up the ending substances?
Samira watched a demonstration in which a scientist combined two substances in a sealed container and analyzed the results. The ending substances did not look the same as the starting substances.
Samira was given a diagram with the repeating groups of atoms that make up the starting substances, plus information about the properties of the starting and ending substances. She created a model of the repeating groups of atoms that might make up the two ending substances.
Samira's model correctly demonstrates how the properties changed with the rearrangement of the atoms. However not all atoms are accounted for. There is a missing reactant.
Samira's model is correct because the properties are different and the atoms are rearranged.
Samira's model is incorrect because not all atoms are accounted for
Samira's model correctly demonstrates how the properties changed with the rearrangement of the atoms. However not all atoms are accounted for. There is a missing product.
The diagram above shows the repeating groups of atoms that make up two samples. Both samples are gases at room temperature. Will the other properties of the samples likely be the same or different? (Examples of properties are smell, color, and the temperature at which a substance melts.)
The other properties will likely be the same because the repeating groups of atoms that make up the two samples have the same types of atoms.
The other properties will likely be the same because both samples are gases at room temperature.
The other properties will likely be different because there are more repeating groups of atoms in Sample 1.
The other properties will likely be different because the repeating groups of atoms that make up the two samples have different numbers of atoms.
A pull between two molecules that is always the same for a substance
Kinetic Energy
Molecular Attraction
Molecule
Mixture
Light must be _______________ in order for the material to be affected by light.
reflected
penetrated
absorbed
surrounded
1. Your friends say that they saw a special nail polish that changes color when it is out in the sun. Can light from the sun cause the nail polish to change color?
No. Light is not a physical thing, so it cannot change physical things like nail polish.
Yes. Light from the sun can pull energy out of the nail polish, causing it to change color.
Yes. The nail polish can take in energy from the light, causing it to change color.
No. Light can only change things by warming them up, so it cannot cause the nail polish to change color.
1. If a car sits out in the sun every day for a long time, can light from the sun damage the car’s paint?
Yes. The paint can take in energy from the light, causing it to be damaged.
No. Light can only change things by warming them up, so it cannot damage the car’s paint.
No. Light is not a physical thing, so it cannot change physical things like paint.
Yes. Light from the sun can pull energy out of the paint, causing it to be damaged.
Which is the substance in the earth's atmosphere that absorbs UV light?
ozone
sulfuric acid
carbon dioxide
These graphs show the wavelength and amplitude of light coming from three lasers. Could any of these lasers be giving off a different type of light?
Yes. Laser 2 could be giving off a different type of light because Laser 2 has a different wavelength than Lasers 1 and 3.
Yes. Laser 3 could be giving off a different type of light because Laser 3 has a different amplitude than Lasers 1 and 2.
Yes. All three lasers must be giving off different types of light because every light source gives off its own type of light.
No. All three lasers must be giving off the same type of light because all three are lasers, and the same kind of light source gives off the same type of light.
Ramon puts two magnetic toy trains very close to each other on a track. What will happen next, and why?
The trains will move closer to each other because the magnetic force will pull the trains together.
The trains will not move because the magnets are not touching
The trains will move away from each other because the magnetic force will push the trains apart.
The trains will move away from each other because the magnets are not touching.
Eli is holding two magnets close to each other. What will happen when he lets go?
The magnets will not move because the magnets are not touching.
The magnets will move closer to each other because the magnetic force will pull the magnets together.
The magnets will move away from each other because the magnets are not touching.
The magnets will move away from each other because the magnetic force will push the magnets apart.
Based on the magnetic field line diagrams, what will happen next with these sets of magnets?
The magnets in Set 1 will attract, and the magnets in Set 2 will repel.
The magnets in Set 1 will attract, and the magnets in Set 2 will not move.
The magnets in Set 1 will repel, and the magnets in Set 2 will attract.
In both sets, the magnets will attract.
Three boats were moving across the surface of a lake. The gray and pink boats are a greater mass than the orange boat. Each boat was bumped by another boat. Which boat experienced the strongest force when hit? How do you know?
The gray and pink boats because they are more massive, and all boats changed velocity by same amount.
The pink boat - it's as massive as the gray boat and has the highest ending speed.
All three - they all changed speed by the same amount.
The gray boat - it takes more force to slow down an object than it takes to make it go faster.
In which crash did the puck experience a stronger force?
The puck didn't experience a force. Only the paddles experienced force.
Crash 2: The force of the purple paddle was stronger in this crash because it has more mass, so the force on the puck was stronger,
The diagram doesn't tell you anything about the force on the puck.
The puck experienced the same force in both crashes.
In which crash did the rubber duck experience a stronger force? How do you know?
There is no force on the rubber duck. One the toy boats experienced a force in those crashes.
The diagram doesn't tell you anything about the force on the rubber duck.
The force was the same in both crashes.
Crash two because the force on the orange boat is stronger.
In which crash did the skateboard experience the stronger force? Why?
The skateboard did not experience force, only the shopping cart did.
Crash 2; the force on the cart was stronger in this crash.
The diagram doesn't tell you anything about the force on the skateboard.
The skateboard experienced THE SAME force in both crashes.
In which crash did the asteroid experience the stronger force?
There was no force on the asteroid.
Crash 2: The force on the planet was stronger in this crash. So the force on the asteroid was stronger.
The diagram doesn't tell you anything about the force.
The force was the same in both crashes.
In which crash does the satellite experience a stronger force?
It was the same force in both crashes.
Crash 1: The force exerted by the black asteroid would have been stronger in this crash, so the force on the satellite would also have been stronger.
The diagram doesn't tell you anything about the force on the satellite.
There is no force on the satellite.
a type of wave that carries energy from one place to another, even through empty space
amplitude
energy
emit
light
In soccer, players kick a soccer ball across a flat field. At practice one day, three soccer balls that have the same mass were rolling across the field. They were each kicked by a soccer player, but not from the same direction. Each soccer ball changed speed as a result of being kicked. Use the information in the diagram to answer.
Which soccer ball(s) experienced the strongest force when it was kicked? How do you know?
The purple soccer ball because it has the fastest ending speed.
The blue soccer ball because it takes a stronger force to slow something down than to speed something up.
The blue soccer ball because it changed speed the most.
The purple and yellow soccer balls because they gained force, while the blue soccer ball lost force.
Jorge claims that the gravitational force of Earth always pulls objects toward the center of the Earth. Which of the following demonstrations would provide evidence to support his claim?
dropping objects in many locations while standing on level ground and steep hillsides and sketching how they fall
throwing a variety of objects into the air at many different angles and sketching how they fall
weighing many different objects at different places on Earth to show the effects of gravity
dropping objects from many different heights and recording the time it takes them to fall
Reasoning is...
The process of making clear how your evidence supports your claim.
The process of making it difficult of how your evidence supports your claim.
The process of making clear how your subclaim supports your claim.
The process of making clear how your claim supports your subclaim.
After these two samples achieve equilibrium the temperature will be 30.
true
false
Low temperature things have ______________.
no kinetic energy
high kinetic energy
low kinetic energy
A space shuttle is covered with two layers of carbon. The two layers are the same size and have the same number of molecules. When the space shuttle is sitting on the ground, the layers do not touch, as shown in the diagram above. When the space shuttle takes off, the layers move so that they are touching. Use the information in the diagram to answer the question.
How does the temperature of the outer layer compare with the temperature of the inner layer before the layers touch? What will happen after the layers have been touching for a while?
Before the layers touch, the outer layer is hotter than the inner layer. Once the layers are touching, the outer layer will transfer kinetic energy to the molecules in the cooler inner layer until both layers reach the same temperature, which will be in between their starting temperatures.
Before the layers touch, the outer layer is hotter than the inner layer. Once the layers are touching, the cooler inner layer will gain kinetic energy until the molecules of both layers have an energy of 90, because hotter things increase the temperature of cooler things.
Before the layers touch, the outer layer is cooler than the inner layer. Once the layers are touching, the inner layer will transfer kinetic energy to the molecules in the cooler outer layer until both layers reach the same temperature, which will be in between their starting temperatures.
Before the layers touch, the layers are different temperatures. Once the layers are touching, kinetic energy and cold energy will transfer between the molecules in the two layers until both layers reach the same temperature, which will be in between their starting temperatures.
A chef takes four pans from different parts of her kitchen and puts them in two stacks. The diagram above shows the pans before they touch each other. Use the information in the diagram to answer the question.
After the pans have been touching for a while, which of the two bottom pans will be cooler, and why?
The smaller bottom pan will be cooler than the larger bottom pan, because less energy has to transfer for the molecules to reach the same temperature as the molecules of the top pan.
The larger bottom pan will be cooler than the smaller bottom pan. It started with more total energy, so less energy had to transfer for both pans to reach the same total energy.
The larger bottom pan will be cooler than the smaller bottom pan, because the energy that transferred to it will have spread out over more molecules.
Both pans will be the same temperature because both of the top pans had the same amount of energy to transfer and the molecules in the bottom pans start with the same energy.
Why are these fish not visible at the ocean floor?
They are camoflauged by the sand and clay bottom
They do not reflect any colors of light that reach the ocean floor
Their preditors do not use eye sight to hunt.
They stay in groups to create a shadow effect around them.
How are we able to perceive an object as being the color white?
All colors of visible light are absorbed by an object and then reflected into our eye.
All colors of visible light are reflected off an object and then to our eye.
All colors of visible light are absorbed by an object and no light is being reflected into our eye.
Alina notices that when she shines a desk lamp on a mirror, nothing happens. When she shines an infrared lamp on the mirror, the mirror starts to get warmer. Why does light from the infrared lamp warm the mirror when light from the desk lamp does not?
Because the mirror can take in energy from infrared light but not from the light from the desk lamp.
Because infrared light carries energy, and light from the desk lamp does not.
Because infrared light carries heat molecules, and light from the desk lamp does not.
Because infrared light pulls energy out of the mirror, and light from the desk lamp does not.
