Physics Exam 1 Multiple Choice Questions
All Solved Correct.
Suppose that an object travels from one point in space to another. Make a comparison
between the magnitude of the displacement and the distance traveled by this object.
A) The displacement is either greater than or equal to the distance traveled.
B) The displacement is always equal to the distance traveled.
C) The displacement is either less than or equal to the distance traveled.
D) The displacement can be either greater than, smaller than, or equal to the distance traveled.
- Answer Answer: C
Consider a car that travels between points A and B. The car's average speed can be greater
than the magnitude of its average velocity, but the magnitude of its average velocity can never
be
greater than its average speed.
A) True
B) False - Answer Answer: A
When is the average velocity of an object equal to the instantaneous velocity?
A) only when the velocity is increasing at a constant rate
B) only when the velocity is decreasing at a constant rate
C) when the velocity is constant
D) always
E) never - Answer Answer: C
You drive 6.0 km at 50 km/h and then another 6.0 km at 90 km/h. Your average speed over
the 12 km drive will be
,E) It cannot be determined from the information given because we must also know directions
traveled. - Answer Answer: C
If the velocity of an object is zero at some point, then its acceleration must also be zero at
that point.
A) True
B) False - Answer Answer: B
Which of the following situations is impossible?
A) An object has velocity directed east and acceleration directed west.
B) An object has velocity directed east and acceleration directed east.
C) An object has zero velocity but non-zero acceleration.
D) An object has constant non-zero acceleration and changing velocity.
E) An object has constant non-zero velocity and changing acceleration. - Answer E
If the acceleration of an object is zero, then that object cannot be moving.
A) True
B) False - Answer B
If the velocity of an object is zero, then that object cannot be accelerating.
A) True
B) False - Answer B
Suppose that a car traveling to the west begins to slow down as it approaches a traffic light.
Which of the following statements about its acceleration is correct?
A) The acceleration is toward the east.
B) Since the car is slowing down, its acceleration must be negative.
, This is a description of what characteristic of the car's motion?
A) average speed
B) instantaneous speed
C) average acceleration
D) instantaneous acceleration
E) displacement - Answer c
An object moving in the +x direction experiences an acceleration of +2.0 m/s2. This means
the object
A) travels 2.0 m in every second.
B) is traveling at 2.0 m/s.
C) is decreasing its velocity by 2.0 m/s every second.
D) is increasing its velocity by 2.0 m/s every second. - Answer d
Suppose that a car traveling to the east (+x direction) begins to slow down as it approaches a
traffic light. Which statement concerning its acceleration must be correct?
A) Its acceleration is in the +x direction.
B) Its acceleration is in the -x direction.
C) Its acceleration is zero.
D) Its acceleration is decreasing in magnitude as the car slows down. - Answer b
Suppose that a car traveling to the west (-x direction) begins to slow down as it approaches a
traffic light. Which statement concerning its acceleration must be correct?
A) Its acceleration is positive.
B) Its acceleration is negative.
C) Its acceleration is zero.
D) Its acceleration is decreasing in magnitude as the car slows down - Answer a
Suppose that an object is moving with a constant velocity. Which statement concerning its
acceleration must be correct?
A) The acceleration is constantly increasing.
All Solved Correct.
Suppose that an object travels from one point in space to another. Make a comparison
between the magnitude of the displacement and the distance traveled by this object.
A) The displacement is either greater than or equal to the distance traveled.
B) The displacement is always equal to the distance traveled.
C) The displacement is either less than or equal to the distance traveled.
D) The displacement can be either greater than, smaller than, or equal to the distance traveled.
- Answer Answer: C
Consider a car that travels between points A and B. The car's average speed can be greater
than the magnitude of its average velocity, but the magnitude of its average velocity can never
be
greater than its average speed.
A) True
B) False - Answer Answer: A
When is the average velocity of an object equal to the instantaneous velocity?
A) only when the velocity is increasing at a constant rate
B) only when the velocity is decreasing at a constant rate
C) when the velocity is constant
D) always
E) never - Answer Answer: C
You drive 6.0 km at 50 km/h and then another 6.0 km at 90 km/h. Your average speed over
the 12 km drive will be
,E) It cannot be determined from the information given because we must also know directions
traveled. - Answer Answer: C
If the velocity of an object is zero at some point, then its acceleration must also be zero at
that point.
A) True
B) False - Answer Answer: B
Which of the following situations is impossible?
A) An object has velocity directed east and acceleration directed west.
B) An object has velocity directed east and acceleration directed east.
C) An object has zero velocity but non-zero acceleration.
D) An object has constant non-zero acceleration and changing velocity.
E) An object has constant non-zero velocity and changing acceleration. - Answer E
If the acceleration of an object is zero, then that object cannot be moving.
A) True
B) False - Answer B
If the velocity of an object is zero, then that object cannot be accelerating.
A) True
B) False - Answer B
Suppose that a car traveling to the west begins to slow down as it approaches a traffic light.
Which of the following statements about its acceleration is correct?
A) The acceleration is toward the east.
B) Since the car is slowing down, its acceleration must be negative.
, This is a description of what characteristic of the car's motion?
A) average speed
B) instantaneous speed
C) average acceleration
D) instantaneous acceleration
E) displacement - Answer c
An object moving in the +x direction experiences an acceleration of +2.0 m/s2. This means
the object
A) travels 2.0 m in every second.
B) is traveling at 2.0 m/s.
C) is decreasing its velocity by 2.0 m/s every second.
D) is increasing its velocity by 2.0 m/s every second. - Answer d
Suppose that a car traveling to the east (+x direction) begins to slow down as it approaches a
traffic light. Which statement concerning its acceleration must be correct?
A) Its acceleration is in the +x direction.
B) Its acceleration is in the -x direction.
C) Its acceleration is zero.
D) Its acceleration is decreasing in magnitude as the car slows down. - Answer b
Suppose that a car traveling to the west (-x direction) begins to slow down as it approaches a
traffic light. Which statement concerning its acceleration must be correct?
A) Its acceleration is positive.
B) Its acceleration is negative.
C) Its acceleration is zero.
D) Its acceleration is decreasing in magnitude as the car slows down - Answer a
Suppose that an object is moving with a constant velocity. Which statement concerning its
acceleration must be correct?
A) The acceleration is constantly increasing.
