2 Bongani is learning about rounding off numbers. He understands that numbers are rounded to a certain number of significant figures. What is 3.14159 rounded to 3 significant figures? A 3.14 B 3.142 C - D -
3 Xia is learning about random errors. She understands that random errors are unpredictable and vary in magnitude. Which of the following is an example of a random error? A A faulty scale B Reading a scale at an angle C Slight variations in temperature affecting measurement D Zero offset
4 Ibrahim is studying the addition of vector quantities. He learns that vectors can be added graphically. What is the method of adding vectors head-to-tail called? A Vector addition B Vector resolution C Resultant vector D Component method
7 Fatima is learning about atomic and nuclear physics. She understands that this branch deals with the structure and behavior of atoms and their nuclei. Which of the following is studied in nuclear physics? A Chemical bonding B Radioactive decay C Molecular structure D Crystal formation
9 Tina is learning about scalar and vector quantities. She understands that scalar quantities have only magnitude. Which of the following is a scalar quantity? A Force B Temperature C Velocity D Acceleration
10 Which instrument is used to measure length accurately? A Measuring tape B Meter rule C Vernier caliper D Stopwatch
11 Yara is learning about significant figures. She understands that zeros after a decimal point but before a non-zero digit are not significant. How many significant figures are in 0.00234? A 2 B 3 C 4 D 5
12 Resultant of two vectors at right angles is found using: A Addition law B Subtraction law C Pythagoras theorem D Newton’s law
13 Chloe is studying optics. She learns that optics deals with the behavior and properties of light. Which of the following instruments is used in optics? A Thermometer B Microscope C Barometer D Ammeter
14 Zayn is learning about significant figures. He understands that significant figures are the digits in a number that carry meaning. How many significant figures are there in 0.00450? A 2 B 3 C 4 D 5
15 Carlos is studying the branches of physics. He learns that quantum physics deals with the behavior of matter and energy at the atomic and subatomic level. Which of the following phenomena is studied in quantum physics? A Diffraction of light B Photoelectric effect C Planetary motion D Sound propagation
16 Qasim is studying measuring instruments. He learns that a meter rule is used to measure length. What is the least count of a meter rule? A 0.1 cm B 1 cm C 0.01 cm D 0.001 cm
18 Zero error occurs when: A Scale is broken B Instrument reads zero incorrectly C Observer is careless D Value is large
20 Nadia is learning about scalar and vector quantities. She understands that scalar quantities have only magnitude, while vector quantities have both magnitude and direction. Which of the following is a scalar quantity? A Velocity B Force C Mass D Displacement
22 Khalid is studying the screw gauge. He learns that the screw gauge has a pitch and a circular scale. What is the pitch of a screw gauge? A The distance moved by the spindle in one rotation B The number of divisions on the circular scale C The length of the screw D The diameter of the screw
25 Omar is studying vector quantities. He knows that vectors are represented by arrows. Which of the following is a vector quantity? A Speed B Distance C Acceleration D Time
27 Ahmed is studying the branches of physics. He learns that mechanics deals with the motion of objects and the forces acting on them. Which of the following phenomena would be studied in mechanics? A The behavior of light through a lens B The motion of a falling apple C The structure of an atom D The flow of electric current
28 Xia is studying precision and accuracy. She understands that precision is about the repeatability of measurements. Which of the following describes a precise measurement? A Measurements that are close to the true value B Measurements that are close to each other C Measurements that are all the same D Measurements that have no errors
29 George is studying relativity. He learns that relativity deals with the relationship between space and time. Who proposed the theory of relativity? A Isaac Newton B Albert Einstein C Galileo Galilei D Niels Bohr