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MULTIPLE CHOICE TEST: MECHANICS     mc1Q88

10 Questions (20 marks): 2 attempts per question: marks 2 or 1 or 0

Do questions in order to get correct progressive mark

Question 1

An object is moving along a straight line. Which of the following displacement-time graphs represents a motion which is impossible?

Select:       A       B       C       D       E          





Question 2

An object is moving along a straight line. Which of the following displacement-time graphs definitely represents the motion in which the acceleration is constant?

Select:       A       B       C       D       E          




Question 3

A bullet of mass M [kg] and velocity u [m.s-1] is brought to rest in time t [s] with a uniform acceleration a [m.s-2]. The magnitude acceleration a of the bullet is

Select:       A       B       C       D       E          




Question 4

Which of the following motions has/have a constant velocity?

(1) An object rolling down a ramp.

(2) An object moving in a circle with constant speed.

(3) An object at the bottom of a swing pendulum.

(4) An object travelling in a straight line with constant speed.

  1. (2) and (4) only
  2. (1), (2) and (4) only
  3. (1) and (2) only
  4. 4 only
  5. 2 only
Select:       A       B       C       D       E          




Question 5

In which of the following is the average velocity zero in the time interval of one period?

( 1) The motion of a pendulum.

(2) The motion of an object moving with a constant speed in a circle.

(3) The motion of a particle moving around an arbitrary closed path.

  1. (1) only
  2. (2) only
  3. (3) only
  4. None of them only
  5. All of them
Select:       A       B       C       D       E          




Question 6

A train slips (releases) its end carriage which stops at a station 300 m ahead 60 s after being slipped. Find the velocity [m.s-1] of the train, assuming the acceleration [m.s-2] of the carriage is uniform.

  1. 2.5
  2. 3.3
  3. 5
  4. 10
  5. Cannot be calculated since the acceleration is an unknown quantity.
Select:       A       B       C       D       E          




Question 7

The velocity-time graph of an object moving in a straight line is shown. The displacement [m] of the object after 10 s is:

  1. 24
  2. 4
  3. -4
  4. 2
  5. -24
Select:       A       B       C       D       E          




Question 8

The velocity-time graph of an object moving in a straight line is shown. The distance [m] travelled by the object after 10 s is:

  1. 24
  2. -24
  3. 4
  4. -4.0
  5. 0
Select:       A       B       C       D       E          




Question 9

The velocity-time graph of an object moving in a straight line is shown. If the average velocity is 20 m.s-1. The acceleration [m.s-2] from A to B is

  1. 3/2
  2. 3/4
  3. 1/3
  4. 1/2
  5. 2/3
Select:       A       B       C       D       E          




Question 10

An object moves along a straight-line. It starts with a speed u [m.s-1] and after a time interval of Δt [s] returns to its starting point with the same speed. The magnitude of the average acceleration of the object is

Select:       A       B       C       D       E          







Ian Cooper
Honorary Lecturer, School of Physics, University of Sydney
ian.cooper@sydney.edu.au
If you have any comments, suggestions or corrections please email Ian Cooper

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