Physics 201 Exam 1 Comprehensive Review and Practice
Material
The acceleration of an object is directly proportional to
A.) its mass
B.) its velocity
C.) the net force acting on it
D.) its position - ANS✔✔ C.) the net force acting on it
A pilot drops a bomb from a plane flying horizontally at a constant speed. Neglecting air
resistance, when the bomb hits the ground the horizontal location of the place will
A.) be over the bomb
B.) be in front of the bomb
C.) depend on the speed of the plane when the bomb was released
D.) be behind the bomb - ANS✔✔ A.) be over the bomb
An object of mass m is hanging by a string from the ceiling of an elevator. The elevator is moving
upward, but slowing down. What is the tension in the string?
A.) exactly mg
B.) less than mg
C.) zero
D.) greater than mg - ANS✔✔ B.) less than mg
A new car manufacturer advertises that their car can go "from zero to sixty in 8s". This is a
description of
A.) instantaneous speed
, B.) instantaneous acceleration
C.) average acceleration
D.) average speed - ANS✔✔ C.) average acceleration
If a ball is thrown with a velocity of 25 m/s at an angle of 37 above the horizontal, what is the
horizontal component of the velocity
A.) 25 m/s
B.) 30 m/s
C.) 20 m/s
D.) 15 m/s - ANS✔✔ C.) 20 m/s
A ball is thrown straight up, reaches a maximum height, then falls to its initial height. Make a
statement about the direction of the velocity and acceleration as the ball is coming down
A.) its velocity points upward and its acceleration points downward
B.) both its velocity and its acceleration point downward
C.) both its velocity and its acceleration point upward
D.) its velocity points downward and its acceleration points upward - ANS✔✔ B.) both its
velocity and its acceleration point downward
The metric prefix for one thousand is
A.) milli
B.) mega
C.) centi
D.) kilo - ANS✔✔ D.) kilo
Ignoring air resistance, the horizontal component of a projectile's acceleration
A.) remains a non zero constant
Material
The acceleration of an object is directly proportional to
A.) its mass
B.) its velocity
C.) the net force acting on it
D.) its position - ANS✔✔ C.) the net force acting on it
A pilot drops a bomb from a plane flying horizontally at a constant speed. Neglecting air
resistance, when the bomb hits the ground the horizontal location of the place will
A.) be over the bomb
B.) be in front of the bomb
C.) depend on the speed of the plane when the bomb was released
D.) be behind the bomb - ANS✔✔ A.) be over the bomb
An object of mass m is hanging by a string from the ceiling of an elevator. The elevator is moving
upward, but slowing down. What is the tension in the string?
A.) exactly mg
B.) less than mg
C.) zero
D.) greater than mg - ANS✔✔ B.) less than mg
A new car manufacturer advertises that their car can go "from zero to sixty in 8s". This is a
description of
A.) instantaneous speed
, B.) instantaneous acceleration
C.) average acceleration
D.) average speed - ANS✔✔ C.) average acceleration
If a ball is thrown with a velocity of 25 m/s at an angle of 37 above the horizontal, what is the
horizontal component of the velocity
A.) 25 m/s
B.) 30 m/s
C.) 20 m/s
D.) 15 m/s - ANS✔✔ C.) 20 m/s
A ball is thrown straight up, reaches a maximum height, then falls to its initial height. Make a
statement about the direction of the velocity and acceleration as the ball is coming down
A.) its velocity points upward and its acceleration points downward
B.) both its velocity and its acceleration point downward
C.) both its velocity and its acceleration point upward
D.) its velocity points downward and its acceleration points upward - ANS✔✔ B.) both its
velocity and its acceleration point downward
The metric prefix for one thousand is
A.) milli
B.) mega
C.) centi
D.) kilo - ANS✔✔ D.) kilo
Ignoring air resistance, the horizontal component of a projectile's acceleration
A.) remains a non zero constant
