Physics Motion in One Dimension Exercise2a
Please Select
Q1 Differentiate between the scalar and vector quantities, giving two examples of each.
Q2 State whether the following quantity is a scalar or vector?
(a) Pressure
(b) Force
(c) Momentum
(d) Energy
(e) Weight
(f) Speed
Q3 When is a body said to be at rest?
Q4 When is a body said to be in motion?
Q5 What do you mean by motion in one direction?
Q6 Define displacement. State its unit.
Q7 Differentiate between distance and displacement.
Q8 Can displacement be zero even if distance is not zero? Give one example to explain your answer.
Q9 When is the magnitude of displacement equal to the distance?
Q10 Define velocity. State its unit.
Q11 Define speed. What is its S.I. unit?
Q12 Distinguish between speed and velocity.
Q13 Which of the quantity speed or velocity gives the direction of motion of body.
Q14 When is the instantaneous speed same as the average speed?
Q15 Distinguish between uniform velocity and variable velocity.
Q16 Distinguish between average speed and average velocity.
Q17 Give an example of motion of a body moving with a constant speed, but with a variable velocity. Draw a diagram to represent such a motion
Q18 Give an example of motion in which average speed is not zero, but average velocity is zero.
Q19 Define acceleration. State its S.I unit.
Q20 Distinguish between acceleration and retardation.
Q21 Differentiate between uniform acceleration and variable acceleration.
Q22 What is meant by the term retardation? Name its S.I. unit.
Q23 Which of the quantity, velocity or acceleration determines the direction of motion?
Q24 Give one example of each type of the following motion:
(a) Uniform velocity
(b) Variable velocity
(c) Variable acceleration
(d) Uniform retardation
Q25 The diagram below shows the pattern of the oil on the road, dripping at a constant rate from a moving car. What information do you get from it about the motion of car?
Q26 Define the term acceleration due to gravity. State its average value.
Q27 ‘The value of g remains same at all places on the earth surface’. Is this statement true? Give reason for your answer.
Q28 If a stone and a pencil are dropped simultaneously in vaccum from the top of a tower, which of the two will reach the ground first? Give reason.
Multiple Choice type Questions :
Q1 A vector quantity is:
(a) Work
(b) Pressure
(c) Distance
(d) Velocity
Q2 The S.I. unit of velocity is:
(a) Km h-1
(b) m min-1
(c) km min-1
(d) m s-1
Q3 The unit of retardation is:
(a) ms-1
(b) ms-2
(c) m
(d) ms-2
Q4 A body when projected up with an initial velocity u goes to a maximum height h in time t and then comes back at the point of projection. The correct statement is:
(a) The average velocity is 2h/t
(b) The acceleration is zero
(c) The final velocity on reaching the point of projection is 2u
(d) The displacement is zero
Q5 18km h-1 is equal to:
(a) 10ms-1
(b) 5 ms-1
(c) 18 ms-1
(d) 1.8 ms-1
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