WorksheetsPhysics 1 Final Exam Review
Total questions: 65
Worksheet time: 1hrs 12mins
An object moving East begins to slow down as it approaches a traffic light. Make a statement concerning its acceleration.
The car is decelerating, and its acceleration is positive.
The car is decelerating and its acceleration is negative.
The acceleration is zero.
A statement cannot be made using the information given.
Which is a vector quantity?
distance
speed
mass
force
Which line on the velocity graph shows an object moving at a constant velocity?
A
B
C
D
The diagram to the right shows a ball projected horizontally with an initial velocity of 20 m/s east, off a cliff 100 m high. (Neglect air resistance) During the flight of the ball, what is the direction of its vertical velocity?
downward
upward
westward
eastward
For general projectile motion with no air resistance, the horizontal component of a projectile’s acceleration _____.
continuously increases
remains a non-zero constant
first decreases then increases
remains zero
Action-reaction forces from Newton’s Third Law _____.
sometimes act on the same object
always act on the same object
always act on different objects
may form right angles
When the rocket engines on a spaceship are suddenly turned off, while traveling in empty space where there are no external forces, the spaceship will _____.
stop immediately
slowly slow down, and then stop
go faster and faster
move with constant speed
In the diagram to the right, a 10 kg block is at rest on a plane inclined at 15° to the horizontal. As the angle of the incline is increased to 30° , the weight of the block will _____.
decrease
increase
remain the same
cannot be determined
A car moves with a constant speed in a counter clockwise direction around a circular path of radius r, as represented in the diagram to the right. When the car is in the position shown, its acceleration is directed toward the _____.
north
west
south
east
What is the only centripetal force when a car goes around a flat highway curve?
normal
tension
gravity
friction
An object moves in a horizontal circular path at a constant speed. Compare the direction of the object’s centripetal force and centripetal acceleration vectors.
The vectors point in opposite directions.
The vectors point in the same direction.
The vectors are perpendicular.
The question is meaningless, since the acceleration is zero.
Two objects attract each other gravitationally. If the distance between their centers is tripled the gravitational force _____.
is 3 times greater
is 9 times greater
is cut in one-third
is cut in one-ninth
Two objects, with mass m1 and m2 , are at a distance "r" apart. The mass of both objects is doubled and the distance quadruples. What is the change in the gravitational force?
It is cut in fourth.
It is cut in half.
It remains the same.
It is quadrupled.
If the net work done on an object is negative, then the object's kinetic energy _____.
increases
decreases
is zero
remains the same
The quantity mgy is _____.
the kinetic energy of an object
the gravitational potential energy of an object
the elastic potential energy of an object
the work done on an object by the force
A point on a wheel rotating at 4.1 m/s is located 0.25 m from the axis. What is the centripetal acceleration of the object?
88.8 s2m
44.6 s2m
4.7 s2m
1.1 s2m
A ball is thrown horizontally with an initial velocity of 12 m/s from the top of a tower 45 m high. What is the initial horizontal velocity of the ball?
0 m/s
8.5 m/s
12 m/s
27.2 m/s
A cart that starts at rest experiences a constant acceleration of 1.5 s2m . How far does the cart need to travel to reach a speed of 12.0 m/s?
4 m
16 m
48 m
72 m
When two electric charges that share the same sign are near each other, they will __________________.
Have no effect on each other
Repel each other
attract each other
annihilate each other
Which particle will determine the strength of an electric charge?
Proton
Neutron
Atom
Electron
When charging occurs due to two objects being in contact with each other, this is called _____________________.
Charging by induction
charging by friction
charging by transfer
charging by conduction
A 9V battery is connected to a circuit. The current flowing through the circuit is 2A, what is the resistance in the circuit?
4.5 Joules
18 Joules
4.5 Amps
18 Amps
A circuit with a 6.0 volt battery attached contains three resistors of 25.0 Ohms, 30.0 Ohms, and 40.0 Ohms connected in series. What is the current in the circuit?
0.085A
1.4A
0.065A
1.240A
What happens to a magnet when it is broken into two separate pieces?
You will have two magnets, each with one magnetic pole
You will have two pieces of metal with no magnetic properties
You will have two magnets, each with two opposite magnetic poles
The larger piece will retain the magnetism, but the smaller piece will not
A longitudinal wave travels _____ to the direction of the wave's motion.
at various angles
parallel
at a right angle
perpendicular
A wave is a disturbance that transports which of the following?
particles
water
light
energy
Complete the sentence:
______________ is the number of crests of a wave that passes a single point in each second.
Amplitude
Frequency
Wavelength
Period
What is the most common unit of measurement for sound level?
Decibel
Displacement
Angstrom
Pitch
What is the wavelength of a wave with a frequency of 800 Hz that is moving through sea water at 1,440 m/s?
2.1 m
4.2 m
3.5 m
1.8 m
What is the change in frequency of a wave due to the relative motion of the observer?
The sound shift
The Feynman effect
The Casimir effect
The Doppler effect
If you see something that is the color black, you are really seeing what?
All of the visible light that strikes the object being reflected
Most of the visible light that strikes the object is being reflected
All of the visible light that strikes the object is being absorbed
Most of the visible light that strikes the object is being absorbed
What is the frequency of light with a wavelength of 7.00 x 10-7 m?
3.4 X 1014 Hz
2.1 X 1014 Hz
5.4 X 1014 Hz
4.3 X 1014 Hz
Describe the motion
Slow to fast; Negative direction
Fast to slow; Negative direction
Fast to slow; Positive direction
Slow to fast; Positive direction
from 3rd second to 5th second, the object is
moving at a constant speed
speeding up
not moving
slowing down
What is happening at E?
Stationary
Accelerating
Fast steady speed; moving away from the starting position
Steady speed; returning to start position
From t=1.0 second to t=3.0 seconds, the object is
moving at a constant speed
speeding up
not moving
slowing down
The car starts from rest and accelerates uniformly to reach a maximum speed of 69.44 ms-1 in 3.8 s. What is the acceleration of the car?
9.3 ms-2
18.3 ms-2
24.43 ms-2
20 ms-2
a = -9.8 m/s2
a = -9.8 m/s2
a = 0 m/s2
vi = 0 m/s
Which law is this?
An impulse is equivalent to
the change in mass of an object
the change in volume of an object
a force applied to an object for a period of time
the initial momentum of a moving object
this means what?
The type of collision represented by these two masses is
