MCQ1: In a simple pendulum experiment, 20 oscillations were completed in 50s. Calculate the period of the pendulum.
Answer: 0.02s
MCQ2: A body of mass 2 kg moves in a circular path with a uniform speed of 10 m/s. If the radius of the path is 5m, calculate the magnitude of the centripetal force action on the body.
Answer: 40N
MCQ3: Which of the apparatus is not needed for the determination of acceleration due to gravity g?
Answer: Density bottle
MCQ4: A simple bob executing simple harmonic motion has 2cm and 12Hz as amplitude and frequency respectively. Calculate the period of the motion.
Answer: 0.083s
MCQ5: The value of acceleration due to gravity depends on one of these:
Answer: Density of bobs
MCQ6: The period of the body performing simple harmonic motion is 2s. If the amplitude of the motion is 3.5 cm, calculate the maximum speed (π=22/7).
Answer: 11cm/s
MCQ7: Which of the following is the best equation of a non-linear graph?
Answer: y=ax+bx
MCQ8: If the graph produced is a straight line, then the relationship is described as____
Answer: Linear
MCQ9: Graphs showing how two physical measurements are related can be represented in which form?
Answer: Pictorially
MCQ10: If y=mx + b, and y is plotted against x; what type of graph will be obtained?
Answer: Linear graph not passing through the origin
MCQ11: Relative error can be defined as____
Answer: Ratio of the possible error to the total measurement
MCQ12: What is the relative error, if the possible error is 0.05cm and measurement is 32cm?
Answer: 0.02
MCQ13: The time taken for a given event is 7.4s and the possible error is 0.05cm, what is the relative error?
Answer: 0.007
MCQ14: Consider the following pair of measurements 40.0cm or 8.0cm. Which one is more accurate?
Answer: 40.0cm
MCQ15: Consider the following pair of measurements: 0.45m or 0.04m. Which one is more accurate?
Answer: 0.45m
MCQ16: If the diameter of hydrogen atom is 0.000000000106 meters. what is the scientific notation ?
Answer: 1.06 x10^-10
MCQ17: The mass of a water molecule is 0.00000000000000000000003g. Express in scientific notation.
Answer: 3 x10^-23
MCQ18: In measurement report, the non-zero digits are___
Answer: Significant
MCQ19: A digit is significant if and only if it affects ____.
Answer: The relative error
MCQ20: Multiply 1.23 by 2.3. Round off the result to more accurate measurement
Answer: 2.8
MCQ21: Divide 2.1 by 1.54. Round off the result to more accurate measurement.
Answer: 1.4
MCQ22: Multiply the following figures: 5.2865, 3.8 and 19.62 and round off the result to more accurate value
Answer: 3.9x10
MCQ23: Divide 9.5362 by 3.2 round off the result to more accurate value
Answer: 3
MCQ24: Straight line graph show that:
Answer: The relationship between the two variable are linear
MCQ25: The major errors in measuring instrument are
Answer: All of the options
MCQ26: Human errors are based on;
Answer: Judgement and perception
MCQ27: The possible error in measurement is due to
Answer: Inherent imprecision in measuring devices
MCQ28: A measurement reported to one hundredth of a centimetre’s, such as 4.23cm, we can say;
Answer: It’s less precise than 4.2cm
MCQ29: The temperature of two places are recorded to be 30.56C and 32.22C we can say that they are___
Answer: Equally precise
MCQ30: The variables in the function y=Ae-kxare x and y. A negative slope will be obtained if a graph of
Answer: 1n y is plotted against x
MCQ31: Which of the following pair of quantities have identical S I unit?I. Force and surface tension II. Surface tension and spring constant III. Torque and spring constant IV. Young’s modulus and pressure
Answer: II only
MCQ32: The inverse of the slope of graph of extension against tension in the spring represents _____.
Answer: Spring constant
MCQ33: Specific latent heat of fusion of a substance is the quantity of heat required to
Answer: Change the state of unit mass of the substance at its melting point
MCQ34: A piece of copper weighing 400g is heated to 100oC and then quickly transferred into a copper calorimeter of mass 10g containing oil of unknown specific heat capacity at 30oC. If the final temperature of the mixture is 50oC and the specific heat capacity of copper is 390JKg-1k-1The heat gained by calorimeter is:
Answer: 78J
MCQ35: A piece of copper weighing 400g is heated to 100oC and then quickly transferred into a copper calorimeter of mass 10g containing oil of unknown specific heat capacity at 30oC. If the final temperature of the mixture is 50oC and the specific heat capacity of copper is 390JKg-1k-1, calculate the specific heat capacity of the oil.
Answer: 386.1 JKg-1k-1
FBQ1: Let the measured value of two Widths beThe error in the quantity W = W1 + W2 will be____
Answer: 0.014m
FBQ2: ______ is also known as determinant errors.
Answer: Systematic error
FBQ3: In an experiment involving vernier calipers, what kind of error is experienced when the jaws are in contact, the zero of the vernier did not coincide with the zero of the main scale?
Answer: Zero error
FBQ4: The error due to wear and tear of a particular instrument is called____.
Answer: Back lash error
FBQ5: Error not due to instrumental problem is _____.
Answer: Observational error
FBQ6: _____causes like parallax in reading a voltmeter scale.
Answer: Faulty observation
FBQ7: The type of graph equation obeyed if T2 was plotted against M of the equation,
Answer: y = ax + b
FBQ8: There are ______ different types of graphs in this course.
Answer: 4
FBQ9: If W and V are related by equation, W= GVZ is reduced to a linear one, Z represents____.
Answer: slope
FBQ10: ____are due to causes which can be identified.
Answer: Systematic error
FBQ11: What is the unit of Mass?
Answer: Kilogram
FBQ12: When independent measurements are multiplied or divided the___ in error in the result is the square root of the sum of squares of fractional errors in individual quantities.
Answer: fractional error
FBQ13: Determination of acceleration due to gravitation using simple pendulum is independent of the bob’s ----------
Answer: mass
FBQ14: The fractional error in the quantity____ is given by n times the fractional error in B.
Answer: Bn
FBQ15: The error in the result is found by determining how much change occurs in the result when the maximum error occurs in the _____.
Answer: Data
FBQ16: Data collected can be used to show____ between two physical quantities through graphs.
Answer: relationship
FBQ17: Which type of motion is executed by a simple pendulum bob?
Answer: simple harmonic motion
FBQ18: ____is defined as when an object moves to and fro in such a way that its acceleration is directly proportional to its displacement and is always directed to its equilibrium position.
Answer: simple harmonic motion
FBQ19: Materials that can regain their original shape after the deformation (change in dimensions) are called____.
Answer: Elastic materials
FBQ20: When Ө is very small in simple harmonic motion then sin Ө = Ө in rad, acceleration, a is proportional to____.
Answer: displacement
FBQ21: Holding relative density bottle with a moisture hand results to ____
Answer: expansion
FBQ22: At _____ position of Simple Harmonic Motion (SHM) the displacement of the body is zero.
Answer: Equilibrium
FBQ23: What is the unit of the specific latent heat of fusion of ice?
Answer: Jkg-1
FBQ24: At equilibrium position of Simple Harmonic Motion (SHM) the speed of the body is_____.
Answer: Maximum
FBQ25: The dimensional unit of time is___________________
Answer: T
FBQ26: When a mass is hung on a spring stretches 6 cm, its period of vibration if it is then pulled down a little is _____.
Answer: 0.5s
FBQ27: A mass (m) is hung at the end of a spiral spring of force constant of 200N/m. If the spring oscillates with a period of 0.45 s when set in motion, the value of its mass is ____.
Answer: 1kg
FBQ28: ____can be defined as the ratio of the mass of water to the mass of an equal volume of water.
Answer: Relative density
FBQ29: Relative density bottle is also called ______.
Answer: specific gravity bottle
FBQ30: The dimensional unit of distance is _____
Answer: L
FBQ31: Glass is an example of ____ material
Answer: Brittle
FBQ32: ____ states that the deformation of a material is proportional to the applied force in the elastic limit.
Answer: Hooke’s law
FBQ33: When a material cannot recover its original shape, it is said to undergo ___.
Answer: plastic deformation
FBQ34: ____is a property that makes the surface of liquid to behave as if it is covered with an elastic skin.
Answer: surface tension
FBQ35: When you are taking reading from stop watch, you avoid error due to _____.
Answer: parallax