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WorksheetsFinal Exam Review
Total questions: 147
Worksheet time: 1hrs 14mins
An airplane is flying in a positive direction with decreasing positive acceleration, hence its velocity is
increasing
decreasing
constant
indeterminate
The slope of a velocity time graph is ________________.
acceleration
velocity
speed
displacement
The slope of a position time graph is ___________
velocity
time
acceleration
displacement
Which of the following is not a possible acceleration unit
m/s/s
mi/hr/s
km/hr/s
m/s
A science student drops a rock down a mine shaft, what is the initial velocity
0 m/s
-9.8 m/s2
+9.8 m/s2
Can't tell from given information
Which of the following lines shows the object is moving backward?
A
B
C
D
Which object is traveling faster?
B
D
C
Calculate the velocity of the object using this graph.
5 m/s
0.5 m/s
2 m/s
3 m/s
In this position vs time graph, describe the object's motion between 3 and 4 seconds.
At rest
Slowing down
Constant speed
Speeding up
Why does a car accelerate as it rounds a corner at a constant speed?
Its direction changes
It doesn't
It slows down
Its speeds up
The SI unit for acceleration is
mph
ft/sec2
m/s2
m/s
Ten seconds after starting from rest, a freely falling object on Earth will have a speed of about _____________.
100 m/s
500 m/s
50 m/s
10 m/s
A ball tossed vertically upward rises, reaches it highest point, and then falls back to its starting position. During this time the acceleration of the ball is
always 9.8066 downward
9.8066 upward, then 9.8066 downward
zero
always opposite of its velocity
A ball is thrown straight up. At the top of its path its velocity is...
about 5m/s
about 10 m/s
about 20m/s
0m/s
A ball is thrown straight up. At the top of the path the acceleration is...
- 9.8 m/s2
0 m/s2
+ 9.8 m/s2
dependent on how long it ha been in the air.
What is the unit of displacement?
degrees
m/s2
m/s
m
A swimmer increases her speed as she approaches the end of the pool. Her acceleration is...
In the same direction as her motion
In the opposite direction of her motion
At right angles to her motion
Zero
Which of the following devices in a car can cause acceleration (select all that apply)
Steering Wheel
Brake
Gas Pedal
Odometer
A lamp sitting on a table is demonstrating Newton's ___ Law.
1st
2nd
3rd
4th
The coefficient of friction is a way to quantify...
(select all that apply)
material
texture
temperature
mass
Timmy has to move a box across the floor. Which side should he slide it on to have the least friction?
smallest side
medium side
largest side
doesn't matter, all will be the same
Newton's 2nd Law says the acceleration of an object depends directly on its _______ and inversely on its______. (Choose two answers)
Net Force, Mass
Mass, Net Force
Weight, Acceleration
Velocity, Net Force
if an object stays still or continues moving at the same speed and in the same direction, the forces must be ____________.
weak
strong
balanced
unbalanced
Net force is a combination of all ________ acting on an object.
forces
speeds
accelerations
velocities
What will be the effect on the boy in the picture if the driver stops quickly?
Because of inertia he will remain in the same position.
He will be pushed back into the car seat.
He will accelerate forward
He will continue moving forward pressing against the seatbelt.
Which of Newton’s Laws explains how a rocket is able to launch?
Newton's First Law of Motion
Newton's Second Law of Motion
Newton's Third Law of Motion
Newton's Law of Universal Gravitation
Newton's 2nd Law states that if the net force on an object increases, the acceleration will _________________.
Decrease
Increase
Remain constant
Can't be determined
Which law states that an object at rest stays at rest and an object in motion stays in motion unless an unbalanced force acts on it?
1st Law
2nd Law
3rd Law
Which activity would BEST demonstrate Newton's law of Inertia?
A skateboard rider flies forward after his board hits a curb
A lady pushes a grocery cart.
A child jumps on a trampoline.
A boy swings a baseball bat.
Which activity would BEST demonstrate the Law of Action/Reaction?
A car traveling down the road.
You kick a table in the dark and your toe hurts
A soccer ball sitting on the ground.
A lady pushing a grocery cart.
Which activity would BEST demonstrate the Law of Force and Acceleration?
A lady pushes a grocery cart at constant velocity
A boy hits a baseball
A soccer ball sits on the ground.
A bird flying
A force that opposes motion between objects that are touching is called...
motion
friction
velocity
acceleration
When there is an INCREASE in MASS of an object you will have a DECREASE in ______________.
friction
acceleration
force
gravity
Mary is riding in a car when the driver suddenly slams on the brakes. Mary is jerked forward and hits the dashboard. This is caused by
Momentum
Inertia
Impulse
Force
A jellyfish swims through the water by pulling in water and then pushing the water back out in the opposite direction. This is an example of which law of motion?
1st Law
2nd Law
3rd Law
Billy pushes his little brother on a sled through the snow. He then tries to push his father on the the same sled. He noticed that it was much harder to push his father. Which quantity changed that made it more difficult?
Mass
Coefficient of friction
Applied force
Velocity
Which law is this picture an example of?
Law of Inertia
Law of Force and Acceleration
Law of Action / Reaction
Beth's bike remains stopped at the intersection until she begins pedaling again. Which law is this an example of?
1st Law
2nd Law
3rd Law
When two equal forces act in opposite directions on an object, they are called ______________________.
frictional force
balanced force
centripetal force
gravitational force
When an unbalanced force acts on an object, the force ______________________.
changes the motion of the object
is cancelled by another force
does not change the motion of an object
is equal to the weight of the object
The resistance of an object to any change in its motion is called ______________________.
inertia
friction
gravity
weight
The picture is an example of Newton's...
1st Law
2nd Law
3rd Law
An archer pulls the bowstring back, then releases the string and the arrow flies forward. The reaction force to pulling the string back is ...
The string pulls on your finger
The string applies force to the arrow
The arrow accelerates
The string pulls on the bow
In the picture, the blocks are flying out of the truck based on which concept?
Inertia
acceleration
action-reaction
gravity
Friction is a force that acts in a(n) ___________ direction of movement.
similar
opposite
parallel
west
What does the amount of friction friction force depend on? (select ALL that apply)
Weight or Normal Force
Material
Texture
Surface Area
What type of friction occurs when an object is not moving?
static
sliding
fluid
rolling
How can friction be reduced?
reduce the force pushing the 2 surfaces together
increase the velocity
use wax, grease or oil
reduce the area in contact
A type of friction that occurs when a swimmer tries to dive into a pool.
static friction
fluid friction
kinetic
rolling
You replace your 6 cylinder engine with a 10 cylinder engine that doubles the force applied to your car without significantly increasing the mass. What happens to the car?
It accelerates slower
It accelerated faster
Nothing changes
While moving to college, you load the truck up with all of your belongings. What happens to the acceleration of your truck?
Decrease
Increase
Remain constant
Can't be determined
Billy pushes his little brother on a sled through the snow. He then tries to push him on the grass. He noticed that it was much harder to push him on the grass. Which quantity changed that made it more difficult?
Mass
Coefficient of friction
Applied force
Velocity
It's important to tie down objects in the back of your car because in a head-on accident...
They will accelerate forward and hit you
They will accelerate backward and hit you
They will continue at a constant speed and hit you
You don't want them to break
Suppose Sally is pushing a box to the right with 50 N, friction is resisting with 20N, gravity pulls down with 35 N, and the floor pushed up with 35 N. Which forces directly affect the acceleration of the box?
(Select ALL that apply)
Sally
Gravity
The Floor
Friction
Energy of a rock perched on a cliff is an example of...
gravitational potential
elastic potential
chemical potential
kinetic
Energy from a compressed spring would be an example of...
kinetic
elastic potential
gravitational potential
chemical potential
The energy of movement is...?
Kinetic
Gravitational Potential
Elastic Potential
Chemical Potential
After you release a stretched rubber band, the rubber band has ________ energy.
kinetic
elastic potential
gravitational potential
all of the above
Which is an example of chemical energy?
a horse pulling a cart
a dog digesting food
a marching band in a parade
An example of something that stores chemical energy is
lightning
a microwave
a match
a water tower
The energy in a battery is _______ energy.
electromagnetic
chemical potential
elastic potential
nuclear potential
In which scenario is work = 0 J ?
Pushing a stationary wall
Pulling a trolley car
Pushing a book across the table
Dropping a set of keys from a height, h.
A football is kicked off the ground a distance of 50 yards downfield. Neglecting air resistance, which of the following statements would be correct when the football reaches the highest point? (select all that apply)
all of the balls original kinetic energy has been changed into potential energy
the ball will have mostly potential but also some kinetic since it's still moving down the field
the ball will have all kinetic energy at the top
the work done by the kicker is equal to the energy of the ball
What is an example of Nuclear energy?
light from the sun
fusion in the sun
burning logs
heat from a fire
Which is an example of radiant energy? (select all that apply)
light energy
sound from a guitar string
electrons attracting protons
fission of a nuclei
A fan converts _____________ to ________________ energy
Electrical, mechanical
Chemical, radiant
Electrical, thermal
Thermal, electrical
An example of Chemical to Thermal energy is...
burning logs
turning on a fan
sun energy
radio
What energy is given off when a cell phone rings?
Radiant Energy
Gravitational Energy
Thermal Energy
Nuclear Energy
A truck has four times the mass of a car. If both are traveling at the same speed, compare their Kinetic Energy.
the car has 2 times as much
the truck has 16 times as much
the car has 4 times as much
the truck has 4 times as much
A stone is held at a height h above the ground. A second stone with four times the mass of the first one is held at the same height. The gravitational potential energy of the second stone compared to that of the first stone is
one-fourth as much
one-half as much
twice as much
four times as much
Friction always does negative work on an object, as it always opposes motion
true
false
work transfers...
force
energy
velocity
effort
When a pendulum swings, at which point is potential energy at its greatest?
1
2
3
4
At which point is kinetic energy greatest?
W
X
Y
Z
A waiter carries a 10 kg tray full of meals above his head by one arm straight across the room 20 m at constant speed of 2 m/s. How much work has he done?
1960 J
0 J
20 J
200 J
What type of energy is in this picture?
Kinetic
Elastic Potential
Chemical Potential
Gravitational Potential
What kind of energy does this device convert?
Chemical to electrical
Electrical to radiant
Thermal to radiant
Nuclear to thermal
Energy that is stored in bonds between atoms is:
Mechanical energy
Chemical energy
Thermal energy
Nuclear energy
What type of energy transformation takes place when you plug in a lamp and turn it on?
electrical to radiant
electrical to mechanical
chemical to radiant
mechanical to thermal
A light plastic cart and a heavy steel cart are both pushed with the same force for a distance of 1.0 m, starting from rest. After the force is removed, the kinetic energy of the light plastic cart is ________ that of the heavy steel cart.
greater than
equal to
less than
can't say unless we know how big the force is
Two identical cars are traveling to town. Car A goes 25 mph, while car B goes 50 mph. Compare their Kinetic Energy.
Car B has 2 times as much
Car A has 4 times as much
Car A has 2 times as much
Car B has 4 times as much
Two objects of the same mass are launched from the ground. Object A has a launch angle of 45, while Object B has a launch angle of 65. Which object has the greatest maximum height?
A
B
Both objects reach the maximum height
unable to determine with the given information
Two objects of the same mass are launched from the ground. Object A has a launch angle of 45, while Object B has a launch angle of 65. Which object has the greatest maximum range (horizontal distance)?
A
B
Both objects go the same distance
unable to determine with the given information
Suppose Lemming A runs off the edge of the cliff at 2 m/s and Lemming B runs off the edge at 1 m/s. Which will hit the ground first?
A
B
Both at the same time
In the absence of air resistance, the angle at which a thrown ball will go the farthest is?
90°
30°
60°
45°
