Exam 4 Practice Concepts
SI unit for mass: kg
Scalar quantities can be added to other quantities using rules of ordinary addition.
What is the angle between the vectors A and -A when they are drawn from a common origin?
180°
Which one of the following statements concerning vectors and scalars is false?
A vector that is zero may have components other than zero.
For which one of the following situations will the path length equal the magnitude of the displacement?
A ball is rolling down an inclined plane.
What is the average speed of the car for one complete lap? \dfrac{2\pi r}{t}
In which one of the following situations does the car have a westward acceleration?
The car travels eastward and slows down.
In which one of the following cases is the displacement of the object directly proportional to the elapsed time?
a ball rolls with constant velocity
Starting from rest, a particle confined to move along a straight line is accelerated at a rate of 5.0 m/s2.
The speed of the particle increases by 5.0 m/s during each second.
SI unit for mass: kg
Scalar quantities can be added to other quantities using rules of ordinary addition.
What is the angle between the vectors A and -A when they are drawn from a common origin?
180°
Which one of the following statements concerning vectors and scalars is false?
A vector that is zero may have components other than zero.
For which one of the following situations will the path length equal the magnitude of the displacement?
A ball is rolling down an inclined plane.
What is the average speed of the car for one complete lap? \dfrac{2\pi r}{t}
In which one of the following situations does the car have a westward acceleration?
The car travels eastward and slows down.
In which one of the following cases is the displacement of the object directly proportional to the elapsed time?
a ball rolls with constant velocity
Starting from rest, a particle confined to move along a straight line is accelerated at a rate of 5.0 m/s2.
The speed of the particle increases by 5.0 m/s during each second.