ASU PHY 111 Final Exam Questions with
Answers Updated
What must the forces be for momentum to be conserved in a collision?
Correct Answer
Zero.
Question 2
What is acceleration?
Correct Answer
How much your velocity is changing every second.
Question 3
What is the acceleration of a projectile at the highest point in its trajectory with no air
resistance?
Correct Answer
9.8 m/s² downward.
Question 4
What is the vertical component of velocity at the highest point of projectile motion?
Correct Answer
0.
Question 5
What causes an object to move?
Correct Answer
Force
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, Question 6
Why does an object in uniform circular motion experience acceleration?
Correct Answer
Because its velocity is changing direction.
Question 7
How is speed calculated?
Correct Answer
Speed is total distance divided by time.
Question 8
How does mass change with location?
Correct Answer
Mass does not change with location, but weight does.
Question 9
What is the net external force on a car moving at constant speed in a straight line?
Correct Answer
Zero.
Question 10
What happens to an object's energy when work is done on it?
Correct Answer
It may gain or lose energy depending on the direction.
Question 11
What happens to a projectile if gravity is turned off?
Correct Answer
It continues moving in a straight line with constant velocity.
Page 2 of 10
Answers Updated
What must the forces be for momentum to be conserved in a collision?
Correct Answer
Zero.
Question 2
What is acceleration?
Correct Answer
How much your velocity is changing every second.
Question 3
What is the acceleration of a projectile at the highest point in its trajectory with no air
resistance?
Correct Answer
9.8 m/s² downward.
Question 4
What is the vertical component of velocity at the highest point of projectile motion?
Correct Answer
0.
Question 5
What causes an object to move?
Correct Answer
Force
Page 1 of 10
, Question 6
Why does an object in uniform circular motion experience acceleration?
Correct Answer
Because its velocity is changing direction.
Question 7
How is speed calculated?
Correct Answer
Speed is total distance divided by time.
Question 8
How does mass change with location?
Correct Answer
Mass does not change with location, but weight does.
Question 9
What is the net external force on a car moving at constant speed in a straight line?
Correct Answer
Zero.
Question 10
What happens to an object's energy when work is done on it?
Correct Answer
It may gain or lose energy depending on the direction.
Question 11
What happens to a projectile if gravity is turned off?
Correct Answer
It continues moving in a straight line with constant velocity.
Page 2 of 10
