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Physics Grade 11 Unit 3: MOTION IN ONE AND TWO DIMENSIONS
national exam questions have come from this unit. It runs 48 pages; one careful study pass takes about 6.2 hours, and its difficulty is harder among Physics units. Each section below lists the questions set from it, with the year, and opens the page that teaches it.
3.1 Uniformly Accelerated Motion in 1D · read p. 48
- 2012 E.C., Q34 – In an experiment to measure the velocity of a ball rolling along x-axis, a student recorded the distance traveled and time taken by the ball. Which of the following data represent constant velocity of the ball?
3.2 Equations of Uniformly Accelerated Motion in 1D · read p. 54
- 2017 E.C., Q18 – A train is moving along a straight line with a constant acceleration of when it passes by a traffic light 30 m/s point. From there on, if the time taken by the train to reach a velocity of is 4 seconds, then what is the
- 2011 E.C., Q5 – A driver of an automobile travelling at a constant speed of 20 m/s suddenly applies a brake and the automobile comes to rest in 2.0 seconds after skidding for a certain distance. What is the length of the skid distance?
- 2005 E.C., Q23 – A driver moving at a constant speed of $20\text{m/s}$ sees an accident up ahead and hits the brakes. If the car decelerates at a constant rate of $-5\,\text{m/s}^2$, how far does the car go before it comes to a stop?
3.3 Graphical Representation of Uniformly accelerated Motion in 1 D · read p. 60
- 2018 E.C., Q32 – Dashed vertical lines drop from the curve to the time axis at points t1, t2, and t3.]
- 2017 E.C., Q58 – The velocity-time graph of an object moving in a straight line is shown in the figure below. What is the magnitude of the total displacement covered by the object in the time interval of 14 seconds? Question Diagram
- 2015 E.C., Q29 – The graph given below shows the velocity of a man travelling on a motorcycle as a function of time. Which one of the following statements is correct about the velocity-time graph?
- 2014 E.C., Q7 – For an object moving in straight line,
- 2014 E.C., Q25 – A student throws a ball vertically upward with a speed of 20 m/s. The maximum height reached by the ball and its velocity 30 s after it was thrown aret respectively
- 2013 E.C., Q43 – A car is traveling at constant velocity along a straight line. Which statement is correct?
- 2011 E.C., Q6 – - From D(6,12), a straight line descends to point E(12,0) on the horizontal axis.]
- 2010 E.C., Q2 – A race car is moving at a constant speed of 35m/s . A security car was moving at a speed of 5m/s as the race m/s2 car passes by it and was accelerating at constant rate of 5 . What was the speed of the security car when
- 2010 E.C., Q10 – The trace is a trapezium: a straight line rises from the origin to the point labelled (3,4); a horizontal segment runs from (3,4) to the point labelled (9,4); then a straight line falls from (9,4) down to the x axis at x
- 2009 E.C., Q2 – Panel (c): the solid curve drops from the ball and then runs flat and horizontal to the right indefinitely, with a straight arrow above it pointing right; the label at the right reads "B at ∞" (B at infinity).]
- 2009 E.C., Q16 – Graph D: a broad, low, wide hump whose maximum lies well to the left of T, dying away just before T (wide spread, displaced from the true value).]
- 2009 E.C., Q20 – A cricketer throws a ball vertically upwards with initial speed of 20m/s. How long is it in the air before it returns to the cricketerᓼs hands?
- 2008 E.C., Q9 – The stem's apostrophe is corrupted in the capture and renders as a replacement glyph.]
- 2008 E.C., Q14 – The area under a force versus distance graph represents
- 2007 E.C., Q5 – Which of the following statement is correct ?
- 2006 E.C., Q2 – What does the slope of a velocity time graph represent?
3.4 Vertical Motion · read p. 70
- 2012 E.C., Q24 – which of the following is correct about an astronaut inside an international space station orbiting the earth?
- 2010 E.C., Q16 – What will be the speed of the cart?
- 2008 E.C., Q24 – A billiard ball of radius 4cm is falling through a liquid of viscosity 0.985 at a velocity of 2.5m/s the drag force on the ball is
3.5 Uniform Circular Motion · read p. 79
- 2017 E.C., Q55 – Suppose a particle of mass $m$ is tied to a string and then whirled around in a horizontal circle of radius $r$ about the center O as shown in the figure below. If the string makes an angle of $\theta$ to the vertical wh
- 2016 E.C., Q25 – A ball is dropped off from the top of a 20 m high cliff. How long it takes to hit the ground?
- 2015 E.C., Q18 – Consider a particle performing a circular motion around a circle of radius r with an angular velocity $\omega$ and the particle's projection on the horizontal diameter of the circle (between points Q and R) as shown in t
- 2012 E.C., Q15 – Identify a true statement about a mechanical wave
- 2012 E.C., Q40 – Choose a correct statement about centripetal force and centripetal; acceleration.
- 2011 E.C., Q10 – A ball of mass M moves with speed V in the + x-direction. It explodes into two pieces that go off at angles and θ 1 θ 2 , as shown below. What are the magnitude of the momenta of the two pieces?. [Figure: A diagram shows
- 2011 E.C., Q7 – An object of mass M is set in a vertical circular motion. The tension T from the rope keeps the object in a circular path with speed v. Where does the rope experience a maximum tension?
- 2011 E.C., Q38 – What is the expression of the centripetal acceleration of a particle of charge $q$ and mass $m$ moving in a uniform magnetic field $\mathbf{B}$ on a circle of radius $r$ if $\mathbf{B}$ is perpendicular to the particle's
- 2010 E.C., Q4 – Which one of the following statements is correct regarding the motion in a plane?
- 2010 E.C., Q32 – The two end fixed string of length $0.5\,\text{m}$ has a mass per unit length $2\,\text{g/m}$. if the tension in the string is $80\,\text{N}$, what is the second harmonic frequency?
- 2010 E.C., Q40 – If a charged particle enters in to a uniform magnetic field perpendicular to its direction, then what will happen?
- 2009 E.C., Q3 – The other arrow goes down and to the left-of- vertical, making an angle of below the horizontal line on the left side, passing through a shaded oval m = 1 0.8 v = 1 24 labelled units, m/s and continuing to an arrowhead a
- 2008 E.C., Q11 – A downward arrow drawn from a point on the rod is labelled W; the distance from P to that point is marked "0.6m" and the distance from that point across to the vertical line dropped from Q is marked "1.2m".]
- 2008 E.C., Q13 – The spacing between the first and second mass is marked "3m", between the second and third "3m", and between the third and fourth "1m".]
- 2008 E.C., Q7 – An example of a body moving with constant speed but still accelerating is
- 2007 E.C., Q35 – An electron moving at a speed of m/s enters a region of uniform magnetic field of magnitude T, direction perpendicular to the field. The path followed by the electron is circular. What is the radius of the circular path?
- 2007 E.C., Q11 – A highway curve is banked (inclined) in such a way that a car traveling at a speed of 13.5m/s can round the curve without skidding, in the absence of friction. If the banking angle is 300, what is the radius of the curve
- 2007 E.C., Q8 – Women is rotating a bucket of water in a vertical circle of radius 0.9m. The mass of bucket and water is 5kg. What is the bucket's minimum speed at the top of circle if no water is to spill out?
- 2006 E.C., Q8 – Which one of the following statements is true about the motion of a particle in a circular path?
- 2006 E.C., Q21 – A string T 1 leaves the top of that block, runs up the slope parallel to the incline (labelled above it), passes over a circular T 2 m pulley drawn at the apex of the wedge, and then hangs vertically down the right-hand
- 2006 E.C., Q28 – A body moving with constant acceleration covers the distance between two points $60\text{m}$ apart in $5\text{s}$. Its velocity as it passes the second point is $15\text{m/s}$. what is the acceleration?
- 2006 E.C., Q4 – A transverse sinusoidal wave is traveling on a string. Which statement is correct about a point on the string?
- 2006 E.C., Q25 – No numeric values are written on the drawing.] T = 1 18N T = 2 24N T = 1 T = 2 18N
- 2005 E.C., Q36 – A particle of mass m is fired into a magnetic field of strength B at speed V. the particle travels in a circular path inside the field with a radius r. which of the following expressions gives the magnitude of the charge
- 2005 E.C., Q31 – A ladder of length 3m and mass 20 kg leans against a smooth, vertical wall so that the angle between the wall ∘ N w and the ladder is 30 . What are the magnitudes of the normal forces at the contact point on the wall ( )