Mechanics (1d - Kinematics)
5 Questions
| Total Attempts: 1316
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This quiz tests your understanding of 1D kinematics.
Questions and Answers
- 1.As an object falls freely in vacuum, its
- A.
Velocity increases.
- B.
Acceleration increases
- C.
Both velocity and acceleration increase.
- D.
Only distance increases.
- 2.A ball is thrown upwards and caught when it comes back down. In the absence of air resistance, the speed of the ball when caught would be
- A.
Less than the speed it had when thrown upwards.
- B.
More than the speed it had when thrown upwards.
- C.
The same as the speed it had when thrown upwards.
- 3.Suppose an object is in free fall. Each second the object falls
- A.
The same distance as in the second before.
- B.
A larger distance as in the second before.
- C.
With the same instantaneous speed.
- D.
With the same average speed
- E.
None of the above
- 4.At the highest point of flight of a ball thrown upwards,
- A.
The acceleration is zero.
- B.
The acceleration is the minimal.
- C.
The acceleration is directed downward.
- D.
The acceleration is directed upward.
- 5.A free falling object is dropped from a height from rest. After falling for 1 second, the speed is about
- A.
5m/s
- B.
10m/s
- C.
100m/s
- D.
None of the above
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