PH 101L Final Study Guide Exam With
Complete Solutions
Acceleration has units - ANSWER none of these
A free falling object if the air is negligible increases its speed every two seconds by about -
ANSWER 19.6 m/s
An object goes from 5 m/s the first second to 10 m/s during the third second. The acceleration
is - ANSWER 2.5 m/s^2
A rock is thrown vertically up. At its highest altitude, if we neglect any air drag, its
acceleration is - ANSWER Not zero
The acceleration due to gravity is 9.8m/s^2 is a constant physical variable. This statement is -
ANSWER Wrong
A rock is thrown at angle up. How far in the horizontal it wll go depends on (no air drag) -
ANSWER Only the x-component of the velocity and gravity at that location
Having an object with zero acceleration and maximum speed is a - ANSWER rational
statement
, A stone is thrown with initial velocity 10 m/s at an angle of 30 with the horizontal. If the stone
spends 5 seconds in the air, how far away is it going to land? - ANSWER approximately 43
meters
If an object has non zero speed then there must be - ANSWER more info needed
In real life, the area between the two surfaces in contact plays a role in the acceleration of an
object. This statement is - ANSWER true
Two bears, a valley bear and a mountain bear, are pushing a log of the same weight with the
same force on a rough horizontal surface with the same friction coefficient. Which bear will
achieve the higher acceleration of the log? - ANSWER the mountain bear
the area between the two surfaces in contact is included in the Newtonian model of friction.
this statement is - ANSWER false
a reasonable value for the kinetic friction coefficient between a flat weight made of copper
being dragged on plastic tracks should most likely be between 0.1-0.6 - ANSWER
The friction coefficient between our experiment cart and the tracks must be significantly
higher than the friction coefficient between the weight and the tracks. This statement is -
ANSWER false
Complete Solutions
Acceleration has units - ANSWER none of these
A free falling object if the air is negligible increases its speed every two seconds by about -
ANSWER 19.6 m/s
An object goes from 5 m/s the first second to 10 m/s during the third second. The acceleration
is - ANSWER 2.5 m/s^2
A rock is thrown vertically up. At its highest altitude, if we neglect any air drag, its
acceleration is - ANSWER Not zero
The acceleration due to gravity is 9.8m/s^2 is a constant physical variable. This statement is -
ANSWER Wrong
A rock is thrown at angle up. How far in the horizontal it wll go depends on (no air drag) -
ANSWER Only the x-component of the velocity and gravity at that location
Having an object with zero acceleration and maximum speed is a - ANSWER rational
statement
, A stone is thrown with initial velocity 10 m/s at an angle of 30 with the horizontal. If the stone
spends 5 seconds in the air, how far away is it going to land? - ANSWER approximately 43
meters
If an object has non zero speed then there must be - ANSWER more info needed
In real life, the area between the two surfaces in contact plays a role in the acceleration of an
object. This statement is - ANSWER true
Two bears, a valley bear and a mountain bear, are pushing a log of the same weight with the
same force on a rough horizontal surface with the same friction coefficient. Which bear will
achieve the higher acceleration of the log? - ANSWER the mountain bear
the area between the two surfaces in contact is included in the Newtonian model of friction.
this statement is - ANSWER false
a reasonable value for the kinetic friction coefficient between a flat weight made of copper
being dragged on plastic tracks should most likely be between 0.1-0.6 - ANSWER
The friction coefficient between our experiment cart and the tracks must be significantly
higher than the friction coefficient between the weight and the tracks. This statement is -
ANSWER false
