Two-dimensional Kinematics
10 Questions
| Total Attempts: 2417
You may take this quiz up to 3 times. The quiz is open through Sunday, September 11th. (Some questions are review questions, some are new!)
Questions and Answers
- 1.Change in position is called ____________.
- A.
Velocity
- B.
Displacement
- C.
Rate
- 2.The change of velocity over time is called ___________.
- A.
Acceleration
- B.
Speed
- C.
Distance
- 3.An object in free-fall is undergoing __________ acceleration.
- A.
Constant
- B.
Average
- C.
Instantaneous
- 4.The acceleration due to gravity at or near the earth's surface is ______ m/s2.
- A.
3.5
- B.
27
- C.
9.8
- 5.Displacement in 2-dimensions is a ___________, because you must know both magnitude and direction.
- A.
Scalar
- B.
Vector
- C.
Number
- D.
Straight line
- 6.A vector in 2-dimensions can be broken down into horizontal and vertical ___________ vectors.
- A.
Component
- B.
Scalar
- C.
Uneven
- D.
Equivalent
- 7.What is the vertical component of velocity of an object moving at 5 m/s at an angle of 30 degrees above the ground?
- A.
5 sin 30 m/s
- B.
5 cos 30 m/s
- C.
30 cos 5 m/s
- D.
30 sin 5 m/s
- 8.If we ignore air resistance, we usually say that the horizontal component of acceleration of a projectile is ___________.
- A.
Variable
- B.
Equal to the vertical component of acceleration
- C.
Constant
- D.
0
- 9.If we ignore air resistance, the vertical component of acceleration of a projectile is _________________.
- A.
-9.8 m/s^2
- B.
0
- C.
Variable
- D.
Constantly increasing
- 10.If your initial velocity does not change, which launch angle will result in the greatest horizontal displacement of a projectile?
- A.
0 degrees
- B.
30 degrees
- C.
45 degrees
- D.
90 degrees (straight up)
Kinematics is the branch of classical mechanics concerned with the motion of various objects without reference to the forces which cause the motion. This physics quiz consists of ten questions of Kinematics to test your knowledge...
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