Download PRACTICE Final Exam: MULTIPLE CHOICE PROBLEMS

Name _________________________________
PRACTICE Final Exam: MULTIPLE CHOICE PROBLEMS
Conceptual Physics Equations
For objects moving at a constant speed:
Distance = speed x time
Average velocity or speed = Distance / Time
Slope of a line = Δy/Δx = (y2-y1)/(x2-x1)
𝐹𝑛𝑒𝑡 = 𝑚𝑎
𝑎=
or
𝐹𝑛𝑒𝑡
𝑚
Weight = Fg = mg
Acceleration due to gravity = g = 9.8 m/s2
Momentum
p = mv
Kinetic Energy KE = ½ mv2
Potential Energy
Units
1 kilometer = 1,000 meters
1 meter = 100 cm
1 meter = 1,000 mm
PE = mgh
Name _______________________________
Conceptual Physics Final Exam
Column A
Mass is measured in units of:
a. Kilograms
b. Mass
c. Newtons
d. meters / second
Column A
Force is measured in units of:
a. Kilograms
b. Mass
c. Newtons
d. meters / second
Column C
Speed is measured in units of:
a. Kilograms
b. Mass
c. Newtons
d. meters / second
2.
A force of 100 Newtons is
exerted on a 10 kg object. What
is the object’s acceleration?
a. 0.10 m/s2
b. 10 m/s2
c. 100 m/s2
d. 1000 m/s2
A force of 100 Newtons is exerted on
a 100 kg object. What is the object’s
acceleration?
a. 1 m/s2
b. 10 m/s2
c. 100 m/s2
d. 10,000 m/s2
A force of 100 Newtons is exerted on
a 100 kg object. If you increase the
force, the acceleration?
a. increases
b. stays the same
c. decreases
3.
What is the equation for average
speed?
4.
Speed is:
a. The change in position
per unit time
b. The change in velocity
per unit time
c. The time it takes to go a
certain distance
5.
All objects on earth experience
which force:
a. Gravitational force
b. Acceleration
c. Mass
d. Normal
A falling object feels which forces
(pick all that apply)
a. Gravitational force
b. Air resistance
c. Normal
d. Thrust
6.
An object gains kinetic energy if
it:
a. Speeds up
b. Is raised above the
ground
c. Slows down
d. Is lowered closer
towards the ground
An object gains potential energy
if it:
a. Speeds up
b. Is raised above the
ground
c. Slows down
d. Is lowered closer towards
the ground
1.
A car’s speedometer shows its:
a. Instant speed
b. Average speed
c. Instant acceleration
d. Average acceleration
Acceleration is:
a. The change in position
per unit time
b. The change in velocity
per unit time
c. The speed of a moving
object
d. The time it takes to go a
certain distance
What is the average speed for the
runner who runs 100 meters run in
50 seconds?
a. 0.5 m/s
b. 2 m/s
c. 5000 m/s
d. 2 hours
Velocity is:
a. The change in position
per unit time
b. The change in velocity
per unit time
c. The time it takes to go a
certain distance
All dropped objects have the
same:
a. Acceleration
b. Gravitational force
c. Mass
d. Air resistance
7.
Column A
A proton has a ____ charge
a. Positive
b. Negative
c. Neutral
Column A
An electron has a ____ charge:
a. Positive
b. Negative
c. Neutral
8.
An elevator is moving upwards
at a constant speed. The velocity
of the elevator is:
a. Downwards
b. Zero
c. Upwards
An elevator is moving upwards at
a constant speed. The
acceleration of the elevator is:
a. Downwards
b. Zero
c. Upwards
9.
You walk 10 steps to the east
and 4 steps west. The total
DISTANCE you traveled is:
a. 6 steps
b. 4 steps
c. 14 steps
d. 10 steps
You walk 10 steps to the east and
4 steps west. The total
DISPLACEMENT you traveled
is:
a. 6 steps
b. 4 steps
c. 14 steps
d. 10 steps
10.
Which of the Distance-vs-Time
graphs below shows an object
that is moving at a constant
speed?
Which of the Distance-vs-Time
graphs below shows an object that
is speeding up?
A
All dropped objects (ignore air
resistance) and projectiles have a
constant (aka the same):
a. Force
b. Acceleration
c. Velocity
d. Mass
B
C
The acceleration of a falling
object (ignore air resistance) is
always
11.
a.
b.
c.
d.
9.8 N
9.8 m/s2
9.8 m/s
9.8 kg
Column C
Electricity is caused by the
movement of what kind of
charges:
a. Positive (Protons)
b. Neutral (Neutrons)
c. Negative (Electrons)
An elevator is moving upwards at
a constant speed. The net force of
the elevator is:
a. Downwards
b. Zero
c. Upwards
Which of the Distance-vs-Time
graphs below shows an object that
is stopped?
D
The velocity of falling object (ignore
air resistance) will:
a. Increase
b. Decrease
c. Remain constant
12.
Column A
A bowling ball and a golf ball
are dropped in a vacuum
chamber (ignore air resistance).
Which one hits the ground first?
a. Bowling ball
b. Golf ball
c. Both hit the ground at
the same time
d. Neither object falls
Column A
Column C
You shoot a projectile. Which
launch angle travels furthest?
a. 10o
b. 35o
c. 45o
d. 90o
You shoot a projectile. Which
launch angles remains in the air
for the longest time?
a. 10o
b. 35o
c. 45o
d. 90o
13.
What is the equation for
potential energy?
What is the value of “g” in the
equation to the left? (Note, this is
the acceleration due to gravity.)
A 2 kg bowling ball is lifted to a
height of 10 meters. Its potential
energy is:
a. 20 J
b. 19.6 J
c. 100 J
d. 196 J
14.
What is the equation for
momentum?
As a car speeds up, the car’s
momentum:
a. Increases
b. Decreases
c. Stays the same
A 5 kg cart is moving at a speed
of 10 m/s. What is its momentum?
a. 0.5 kg m/s
b. 2 kg m/s
c. 50 kg m/s
d. 250 kg m/s
A pendulum is swinging, as
shown to the left. At which point
is the pendulum stopped?
a. A
b. B
c. C
d. Same at all points
At which point is the pendulum
moving fastest?
a. A
b. B
c. C
d. Same at all points
15.
A
B
C
16.
17.
Column A
(See above) At which point does
the pendulum have the most
Potential Energy?
a. A
b. B
c. C
d. Same at all points
What is the equation for kinetic
energy?
18.
Column A
(See above) At which point is
does the pendulum have the least
PE?
a. A
b. B
c. C
d. Same at all points
What is the kinetic energy of 5 kg
object moving at 10 m/s?
a. 0.5 J
b. 2 J
c. 50 J
d. 250 J
Column C
(See above) At which point does
the pendulum have the most
kinetic energy?
a. A
b. B
c. C
d. Same at all points
A 5 kg block is moving at 10 m/s.
Over time, it slows down due to
friction. As it loses energy of motion,
this energy becomes:
a.
b.
c.
d.
Heat / Internal Energy
Kinetic energy
Potential energy
Nuclear energy
In the picture to the left, draw
FOUR arrows to indicate the path
of the ball if it’s released at points
A, B, C and D.
19.
What force keeps the moon in
motion around the Earth?
a. Electrostatic
b. Gravitational
c. Normal
d. Tension
You swing a ball attached to a
string in a circle. Which force
keeps the ball moving in a circle?
a. Electrostatic
b. Gravitational
c. Normal
d. Tension
20.
Use the sketch of the roller
coaster. At which point on the
drawing does the rider have the
most potential energy?
At which point on the drawing
does the rider have the least
potential energy?
A object in circular motion has a force
towards:
a. Center of circle
b. Outwards
c. In direction of velocity
d. No force