2022 NEW LIBERTY UNIVERSITY PHYS 101 FINAL EXAM STUDY COMPLETE
QUESTIONS WITH ANSWERS
If no external forces are acting on a moving object, it will - ANS IS continue moving at the same
speed in a straight line
An automobile is accelerating when it is
A. slowing down to a stop.
B. rounding a curve at a steady speed.
C. Both of the above.
D. Neither of the above. - ANS IS Both
If a freely falling object were somehow equipped with a speedometer, its speed reading would
increase each second by about - ANS IS 10 m/s
If your car runs out of fuel while you are driving, the engine stops but you do not come to an
abrupt stop. The concept that most explains why is - ANS IS inertia
An object is pulled northward by a force of 10 N and at the same time another force of 15 N
pulls it southward. The magnitude of the resultant force on the object is - ANS IS 5 N
Newton's first law states that - ANS IS an object moves with constant speed in a straight line or
remains stationary unless there is a nonzero net force.
What are the units of acceleration? - ANS IS m/s^2
Which of the following is a scalar? - ANS IS mass, speed, distance
Which of the following is a vector? - ANS IS velocity
Mass is mostly related to an object's - ANS IS weight
If the mass of an object is halved, the weight of the object is - ANS IS halved
, A tennis player hits a ball with a 100 N of force. The ball exerts a reaction force against the
player's racquet of - ANS IS Exactly 100 N
What is the momentum of a car with mass of 2,000 kg and velocity of 10 m/s? - ANS IS 20,000
kg m/s
Impulse is also equal to - ANS IS change in momentum
When the force that produces an impulse acts for twice as much time, the impulse is - ANS IS
doubled
When the speed of an object is doubled, its momentum - ANS IS doubles
When a dish falls, will the change in momentum be less if it lands on a carpet than if it lands on
a hard floor? - ANS IS No, both are the same
A neutron is added to a hydrogen atom. What is the result? - ANS IS hydrogen
A positive ion of hydrogen (atomic number = 1) has how many electrons? - ANS IS 0
What particle makes up the volume of the atom? - ANS IS electron
A helium atom (atomic number = 2) is electrically neutral. How many electrons does it have? -
ANS IS 2
Variants of the same element due to the number of neutrons is called - ANS IS isotope
An helium atom (atomic number = 2) has 3 neutrons. The mass number is - ANS IS 5
An atom has a mass number of 7 and an atomic number of 3. How many neutrons does it
have? - ANS IS 4
QUESTIONS WITH ANSWERS
If no external forces are acting on a moving object, it will - ANS IS continue moving at the same
speed in a straight line
An automobile is accelerating when it is
A. slowing down to a stop.
B. rounding a curve at a steady speed.
C. Both of the above.
D. Neither of the above. - ANS IS Both
If a freely falling object were somehow equipped with a speedometer, its speed reading would
increase each second by about - ANS IS 10 m/s
If your car runs out of fuel while you are driving, the engine stops but you do not come to an
abrupt stop. The concept that most explains why is - ANS IS inertia
An object is pulled northward by a force of 10 N and at the same time another force of 15 N
pulls it southward. The magnitude of the resultant force on the object is - ANS IS 5 N
Newton's first law states that - ANS IS an object moves with constant speed in a straight line or
remains stationary unless there is a nonzero net force.
What are the units of acceleration? - ANS IS m/s^2
Which of the following is a scalar? - ANS IS mass, speed, distance
Which of the following is a vector? - ANS IS velocity
Mass is mostly related to an object's - ANS IS weight
If the mass of an object is halved, the weight of the object is - ANS IS halved
, A tennis player hits a ball with a 100 N of force. The ball exerts a reaction force against the
player's racquet of - ANS IS Exactly 100 N
What is the momentum of a car with mass of 2,000 kg and velocity of 10 m/s? - ANS IS 20,000
kg m/s
Impulse is also equal to - ANS IS change in momentum
When the force that produces an impulse acts for twice as much time, the impulse is - ANS IS
doubled
When the speed of an object is doubled, its momentum - ANS IS doubles
When a dish falls, will the change in momentum be less if it lands on a carpet than if it lands on
a hard floor? - ANS IS No, both are the same
A neutron is added to a hydrogen atom. What is the result? - ANS IS hydrogen
A positive ion of hydrogen (atomic number = 1) has how many electrons? - ANS IS 0
What particle makes up the volume of the atom? - ANS IS electron
A helium atom (atomic number = 2) is electrically neutral. How many electrons does it have? -
ANS IS 2
Variants of the same element due to the number of neutrons is called - ANS IS isotope
An helium atom (atomic number = 2) has 3 neutrons. The mass number is - ANS IS 5
An atom has a mass number of 7 and an atomic number of 3. How many neutrons does it
have? - ANS IS 4
