PHY 103 Exam 1| 125 Questions | With Complete Solutions
What is not an example of a vector quantity? correct answer:
Speed
A freely falling watermelon falls with constant... correct answer:
Velocity
While a car travels around a circular track at a constant speed,
its correct answer: 1.)velocity is zero.
2.)inertia is zero.
3.)acceleration is zero.
NONE OF THE ABOVE
The speedometer of an automobile reads correct answer:
instantaneous speed
A mosquito flying at 3 m/s that encounters a breeze blowing at 3
m/s in the same direction has a speed of correct answer: 6 m/s
A mosquito flying at 3 m/s that encounters a breeze blowing at 3
m/s in the opposite direction has a speed of correct answer: 0
m/s
The distance a freely falling bowling ball falls each second
correct answer: increases
What is the acceleration of a car that starts from rest and 5
seconds later reaches a speed of 20 m/s? correct answer: 4
m/s^2
, Jogging Jake runs at 4 m/s along a train flatcar that moves at 10
m/s in the opposite direction. Jake's speed relative to the ground
is correct answer: 6 m/s
While an iron block near the Earth's surface is in free fall, it
undergoes an increase in correct answer: speed
The average speed of a horse that gallops 10 kilometers in 30
minutes is correct answer: 20 km/h
If an object falling freely were somehow equipped with an
odometer to measure the distance it travels, then the amount of
distance it travels each succeeding second would be correct
answer: greater than the second before
A rock dropped from a 5-m height accelerates at 10 m/s2 and
strikes the ground 1 s later. If the rock is dropped from a height
of 2.5 m, its acceleration of fall is correct answer: the same
If a freely falling object were equipped with a speedometer on a
planet where the acceleration due to gravity is 20 m/s2, then its
speed reading would increase each second by correct answer:
20 m/s
If an object moves with constant acceleration, its velocity must
correct answer: change by the same amount each second.
An object falls freely from rest on a planet where the
acceleration due to gravity is 20 m/s2. After 5 seconds, the
object will have a speed of correct answer: 100 m/s
What is not an example of a vector quantity? correct answer:
Speed
A freely falling watermelon falls with constant... correct answer:
Velocity
While a car travels around a circular track at a constant speed,
its correct answer: 1.)velocity is zero.
2.)inertia is zero.
3.)acceleration is zero.
NONE OF THE ABOVE
The speedometer of an automobile reads correct answer:
instantaneous speed
A mosquito flying at 3 m/s that encounters a breeze blowing at 3
m/s in the same direction has a speed of correct answer: 6 m/s
A mosquito flying at 3 m/s that encounters a breeze blowing at 3
m/s in the opposite direction has a speed of correct answer: 0
m/s
The distance a freely falling bowling ball falls each second
correct answer: increases
What is the acceleration of a car that starts from rest and 5
seconds later reaches a speed of 20 m/s? correct answer: 4
m/s^2
, Jogging Jake runs at 4 m/s along a train flatcar that moves at 10
m/s in the opposite direction. Jake's speed relative to the ground
is correct answer: 6 m/s
While an iron block near the Earth's surface is in free fall, it
undergoes an increase in correct answer: speed
The average speed of a horse that gallops 10 kilometers in 30
minutes is correct answer: 20 km/h
If an object falling freely were somehow equipped with an
odometer to measure the distance it travels, then the amount of
distance it travels each succeeding second would be correct
answer: greater than the second before
A rock dropped from a 5-m height accelerates at 10 m/s2 and
strikes the ground 1 s later. If the rock is dropped from a height
of 2.5 m, its acceleration of fall is correct answer: the same
If a freely falling object were equipped with a speedometer on a
planet where the acceleration due to gravity is 20 m/s2, then its
speed reading would increase each second by correct answer:
20 m/s
If an object moves with constant acceleration, its velocity must
correct answer: change by the same amount each second.
An object falls freely from rest on a planet where the
acceleration due to gravity is 20 m/s2. After 5 seconds, the
object will have a speed of correct answer: 100 m/s
