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WorksheetsFinal Exam - Physical Science
Total questions: 78
Worksheet time: 1hrs 7mins
The balls were released down identical ramps at exactly the same time. What can be inferred by their position after 15 seconds?
The red ball has more mass and thus, more kinetic energy.
The green ball has more mass and, less kinetic energy.
The green ball has more mass and thus, more kinetic energy.
The red ball has more mass and thus, less kinetic energy.
You are watching your brother's baseball game. The first pitch is 68 mph. The second pitch is 75 mph. The third pitch is 74 mph. The fourth pitch is 80 mph. Which pitch has the greatest kinetic energy?
68 mph
74 mph
75 mph
80 mph
James and Juan were at the highest point in the football stadium, dropping water balloons on people below. Many of the balloons did not break, so the boys added more water to the balloons. What impact did adding water have on the balloons' potential energy?
It had no impact; it just made the balloons bigger.
The gravitational potential energy increased because the mass increased.
The gravitational potential energy decreased because the diameter increased.
The gravitational potential energy remained constant because they did not increase the height.
Which of these statements describes the changes in a golf ball when it is hit with a club?
Its kinetic energy and its speed increase.
Its kinetic energy increases, but its speed decreases.
Its kinetic energy decreases, but its speed increases.
Its kinetic energy and its speed decrease.
According to the law of conservation of energy,
an object loses most of its energy as friction.
the total amount of energy for a system stays the same.
the potential energy of an object is always greater than its kinetic energy.
the kinetic energy of an object is always greater than its potential energy.
The rock in the picture is pushed over the edge and it begins to fall. Which type of energy conversion is taking place?
potential to kinetic
mechanical to heat
sound to mechanical
kinetic to potential
A softball is hit high into the air. As it rises, the softball
loses kinetic energy and loses potential energy.
gains kinetic energy and loses potential energy.
loses kinetic energy and gains potential energy.
gains kinetic energy and gains potential energy.
The Law of Conservation of Energy, states that energy can neither be created nor destroyed; energy can only be transferred or changed from one form to another. Energy is the ability to do work and is found in many forms. For example, turning on a light would seem to produce energy; however, it is electrical energy that is converted. Which statement about energy is not true? All, BUT ONE, apply.
A. Energy cannot be created or destroyed.
B. Energy is used up when an object moves.
C. There are six major forms of energy including: thermal, nuclear, mechanical, chemical, electrical, and electromagnetic.
D. Energy can be converted from one form to another.
How does a bowling ball work to cause a strike, where all ten pins fall over, to occur?
The bowling ball transfers thermal energy to the pins when it strikes them.
The bowling ball transfers potential energy to the pins when it strikes them.
The bowling ball transfers kinetic energy to the pins when it strikes them.
The bowling ball transfers mass to the pins when it strikes them.
How do insulated thermoses keep liquids hot and cold during the day?
They reflect light back to the environment before it can be converted into heat.
They resist the intake or loss of thermal energy from and to the outside of the container.
They create an airtight seal to prevent leakage of the liquid within the thermos.
They use a built-in cooling and heating mechanism to moderate the temperature.
Which of the following features describes how a Styrofoam box helps in minimizing thermal energy loss?
Transparent plastic lid
Thick insulation layer
Airtight seal
Reflective metal lining inside the box
The diagram below represents four empty copper containers at room temperature. An equal amount of water at 90°C is added to each copper container. Assume there is no loss of heat to the environment. Which container will have had the greatest change in temperature when the water and the container reach equilibrium?
container 1
container 2
container 3
container 4
Beth wants to maximize her chances of winning the bowling tournament so she tests several balls to find the best fit. She exerts the same 14 N of force to propel the bowling ball down the lane. Will a 3.2 kg, 3.6 kg, 4.1 kg, or 4.5 kg ball provide the fastest acceleration?
3.2 kg ball
3.6 kg ball
4.1 kg ball
4.5 kg ball
Cara and Sam had to illustrate one Newton's laws. They drew this model to represent the ________ law of motion which can also be represented by the equation F = ma
A. First
B. Second
C. Third
An empty truck and a fully loaded truck are next to each other at a traffic light. When the light turns green, the lighter truck increases speed more quickly. Which of these best explains this situation?
Newton's First Law
Newton's 2nd Law
Newton's 3rd Law
A student pushes four students on skateboards. She pushes as hard as she can each time. She measures how far each student goes before stopping. Which is most likely to happen?
The biggest student will go the farthest.
The smallest student will go the farthest.
Each student will go farther than the last.
All four student will go about the same distance.
A runner accelerates toward the finish line. If the reaction force is the ground pushing against the feet of the runner, identify the action force in the example.
The runner's feet pushing against the ground.
The wind pushing the runner's face.
The runner pushing against the air.
The ground pushing against the feet of the runner.
While studying balanced and unbalanced forces, Jose and Gina test what they have learned by Jose applying 10 Newtons of forces to one side of a box and Gina applying 8 Newtons of force to the other side of the box.
The box does not move.
The box moves toward Gina.
The box moves toward Jose.
The force crumples the box.
Newton's First Law of Motion states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force change the motion. This is sometimes called the law of
acceleration
force
inertia
uniformity
Mrs. Webb is very tired and makes coffee. Why would Newton say that she must use her hand to pick up the cup?
An object at rest will stay in at rest unless acted upon by an external force.
The coffee’s inertia accelerates with the force due to the unbalanced forces.
The idiom that every action has an equal and opposite reaction applies.
Acceleration of the object is indirectly proportional to the balanced forces.
For an ocean wave, how does the amplitude affect its energy?
Increasing the amplitude decreases the energy of the wave.
Decreasing the amplitude decreases the energy of the wave.
Decreasing the amplitude increases the energy of the wave.
Increasing the amplitude has a variable effect on the energy of an ocean wave.
Which two waves from the chart have the highest frequencies?
A
B
C
D
A picture of a sound wave is shown. Which section has the greatest amplitude and will produce the loudest sound?
A
B
C
D
Examine the pattern of the wave shown. What is true about the amplitude and wavelength of the wave when the pattern changes?
The amplitude of the wave decreases while the wavelength increases.
Both the amplitude and wavelength of the wave increase.
Both the amplitude and wavelength of the wave decrease.
The amplitude of the wave increases while the wavelength decreases.
We can see the colorful fall leaves (a) in the pond, because the smooth surface of the water acts like a mirror.
reflected
absorbed
refracted
diffracted
What indicates that wave B has higher energy than wave A?
the wavelength of the waves
the frequency of the waves
the amplitude of the waves
the period of the waves
Imagine you're in a room with different materials like a concrete wall, a soft carpet, and a glass window. Explain below how sound waves interact with these materials.
reflected
absorbed
transmitted
refracted
Select the bowling ball that has LESS kinetic energy.
(Hint: The faster the object is, the more kinetic energy it has)
Potential energy depends on
mass and height
height and speed
mass and speed
height and force
Why did the potential energy of the box increase?
The box was moved to a higher position.
The box produced potential energy.
The box lost mass.
Which position would have the most Potential energy?
1
2
3
4
5
Which kind of potential energy will a roller coaster cart have at the top of the tallest hill?
Elastic Potential Energy
Chemical Potential Energy
Electric Potential Energy
Gravitational Potential Energy
At which point is potential energy the greatest?
W
X
Y
Z
The law of (a) states that energy in a system can change forms but can never be created or destroyed.
Why do all objects in free fall have the same acceleration?
All objects have the same mass
the distance between two objects is always the same
the gravitational force between two objects are always the same
acceleration due to gravity is always the same
Mrs. Webb wants to maximize her chances of winning the bowling tournament so she tests several balls to find the best fit. She exerts the same 12 N of force to propel the bowling ball down the lane. Will a 3.7 kg, 3.9 kg, 4.3 kg, or 5 kg ball provides the fastest acceleration?
3.7 kg
3.9 kg
4.3 kg
5 kg
A small car and a big truck are next to each other at a traffic light. When the light turns green, the small car increases speed more quickly. Which of these best explains this situation?
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
A car runs into a stop sign and the sign dents the car is an example of Newtons _ law.
1st
2nd
3rd
You place your textbook on your desk and it stays there is an example of Newtons _ law.
1st
2nd
3rd
Mrs. Webb drops a marble on the ground, and it rolls across the floor in a straight line. This is an example of Newtons _ law.
1st
2nd
3rd
A student is driving her car when an tree limb strikes her windshield. Which of the following statements best describes the forces in this situation?
The tree limb strikes the windshield with a force, and the windshield exerts no force on the tree limb.
The tree limb strikes the windshield with the same force as the windshield strikes the tree limb.
The tree limb exerts no force on the windshield, and the windshield strikes the tree limb with a large force.
The tree limb strikes the windshield with a small force, and the windshield strikes the tree limb with a large force.
Which would BEST describes what occurs when a tennis ball is thrown against the side of a building?
The ball will not bounce off the wall.
The ball hits the wall hard enough to bounce off of it.
The wall is stronger than the ball and neither exerts any forces.
The ball exerts a force on the wall and the wall exerts a force back.
Mrs. Webb decides it would be fun to jump off of the back of her boat while fishing in the lake one day. After she jumps out of the boat, she notices that the boat is no longer in the same place from where she jumped.
Which statement BEST explains why this occurred?
An object at rest stays at rest.
An object in motion stays in motion.
For every action, there is an equal and opposite reaction.
The acceleration of an object is determined by the weight of the object and the force applied to it.
Newton's 1st law is sometimes called the law of
(a)
Which law of Newton is used to calculate the force exerted by an object?
3rd
2nd
1st
4th
A 50 N object is placed on a surface and begins to slide. Which is the most likely reason?
The forces acting on the object are equal
An unbalanced force causes acceleration
Friction is applied to the object
Gravity exerts an unbalanced force
When a bug hits a windshield of a car, the force of the car on the bug equals the force of the bug on the car
True
False
A push or pull acted upon by an object.
Equal
Opposite
Force
The sum of all forces acting on one object.
net force
distance
stationary
position
If we put the same force on a bowling ball and a soccer ball, the soccer ball will move faster! Which law explains this?
1st
2nd
3rd
Which law explains that it would take more force to push the car than the lawnmower?
1st
2nd
3rd
if an object stays still or continues moving at the same speed and in the same direction, it is a _______ force.
weak
strong
balanced
unbalanced
A lamp sitting on a table is demonstrating Newton's ___ Law.
1st
2nd
3rd
4th
Looking at the image. Decide if this is balanced or unbalanced.
Unbalanced
Balanced
What types of waves can travel through empty space AND mediums? (a)
Which wave is pictured? (a)
The orange wave pictured has a ____ frequency than the green wave.
higher
lower
What type of wave is shown in this image?
(a)
Label the wave.
Wavelength
Crest
Trough
Amplitude
When a ball sits on top of a hill it has:
Potential Energy
Light Energy
Sound Energy
Heat Energy
The type of energy that makes this toy move is:
Light
Mechanical
Thermal
Sound
Reflection occurs when a wave __________ .
causes ripples in a pool of water
compresses air particles as it travels
strikes an object and bounces off of it
bends and changes speeds as it travels
The __________ of a wave is how many wavelengths pass a fixed point each second.
During energy transformations, energy is never __________.
used to increase an object's potential energy
released as heat
completely transformed
What two factors determine how much potential energy an object has?
Mass and position
What two factors determine how much kinetic energy an object has?
Mass and speed
Which of the following objects has kinetic energy?
a bicycle parked at the top of a hill
a ball rolling across the floor
leaves lying on the ground beneath a tree
a sunny windowsill
As energy transformations occur within a system, the total energy of the system ________.
remains constant
increases
decreases
is transferred out of the system
Newton's first law of motion states that __________.
an object will remain at rest or keep moving with a constant velocity unless a force acts on it
acceleration is calculated by dividing the force exerted on an object by the mass of the object
when a force acts on an object, its acceleration is in the same direction as the force
when a force is applied to an object, there is an equal force applied by the object in the opposite direction
Forces that cancel each other are called __________ forces.
A(n) __________ is a push or a pull.
motion
acceleration
force
velocity
Which measures the quantity of matter of an object?
