Motion in one dimension
Q1. The equation v = u + at gives information as
(a) velocity is a function of time.
(b) velocity is a function of position.
(c) Position is a function of time.
(d) Position is function of velocity and time
Q2. Which of the following can determine the acceleration of a moving object?
(a) area of velocity-time graph
(b) slope of velocity-time graph
(c) area of distance-time graph
(d) slope of the distance time-graph
Q3. A body is projected up with an initial velocity u m/s. It goes up to a height h metres in t seconds time. Then it comes back at the point of projection. Considering negligible air resistance, which of the following statement is true?
(a) the acceleration is zero
(b) the displacement is zero
(c) the average velocity is 2h/t
(d) the final velocity is 2u when body reaches projection point
Q4. A car accelerates at 1.5 m/s^2 in a straight road. How much is the increase in velocity in 4s?
a) 6 m/s
(b) 4 m/s
(c) 3 m/s
(d) 2.66 m/s
Q5. When an object undergoes acceleration
(a) there is always an increase in its velocity
(b) there is always an increase in its speed
(c) a force always acting on it
(d) all of the above.
Q6. : The numerical ratio of displacement to distance for a moving object is
(a) always less than 1
(b) always equal to 1
(c) always greater than 1
(d) equal to or less than 1
Q7. A train moving with a uniform speed of 54 km/h. What is its speed in m/s?
(a) 15 m/s
(b) 1.5 m/s
(c) 9 m/s
(d) 90 m/s
Q8. Name the unit that represents the area under the velocity-time graph.
Q9. A car starts from city A and it travels 50 km in a straight line to city B. Immediately it turns around, and returns to city A. It took 2 hours for this round trip. The average speed of the car for this round trip is:
(a) 0 km/h
(b) 25 km/h
(c) 50 km/h
(d) 100 km/h
Q10. What is the acceleration of a body moving with uniform velocity?
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