Podcast
Questions and Answers
Which concept describes why the motion happened and what causes it to happen?
Which concept describes why the motion happened and what causes it to happen?
- Kinematics
- Scalar dot product
- Centripetal force
- Dynamics (correct)
If the velocity of a particle is decreasing to the east, what can be said about its acceleration?
If the velocity of a particle is decreasing to the east, what can be said about its acceleration?
- It is zero
- It is changing direction
- It is positive
- It is negative (correct)
What happens to the instantaneous speed in relation to the magnitude of the instantaneous velocity?
What happens to the instantaneous speed in relation to the magnitude of the instantaneous velocity?
- Instantaneous speed is always equal (correct)
- Instantaneous speed is always greater
- Instantaneous speed is always less
- Instantaneous speed is unpredictable
What acceleration component in circular motion is associated with the change in direction?
What acceleration component in circular motion is associated with the change in direction?
In a non-uniform circular motion, what types of acceleration are present?
In a non-uniform circular motion, what types of acceleration are present?
What dictates the trajectory of a projectile?
What dictates the trajectory of a projectile?
What is the fundamental difference between a theory and a law in physics?
What is the fundamental difference between a theory and a law in physics?
Which of the following is an example of a scalar and fundamental quantity in physics?
Which of the following is an example of a scalar and fundamental quantity in physics?
Which method involves finding the sum of the i and j components of a vector?
Which method involves finding the sum of the i and j components of a vector?
What is the relationship between accuracy and position in measurement?
What is the relationship between accuracy and position in measurement?
If the direction of a vector is south of east, what is the sign of its i and j components?
If the direction of a vector is south of east, what is the sign of its i and j components?
What is the relationship between a unit vector and a resultant vector?
What is the relationship between a unit vector and a resultant vector?
