1 What happens to the magnetism of a magnet when it is heated strongly? A It increases B It decreases C It remains the same D It becomes permanent
2 The study of sound and its production, transmission and effects is called: A Acoustics B Optics C Mechanics D Electromagnetism
3 The magnetic domains in an unmagnetised piece of iron are: A All aligned in one direction B Randomly oriented C Completely absent D Arranged in a circle
4 The first step in the scientific method is usually: A Forming a hypothesis B Making an observation C Drawing a conclusion D Performing an experiment
5 Which step of the scientific method involves making a testable statement that can be proven false? A Observation B Hypothesis C Conclusion D Analysis
6 The study of physical processes in the Earth and its environment is called: A Astrophysics B Geophysics C Biophysics D Climate physics
7 Which of the following is a branch of physics that deals with the study of heat and temperature? A Mechanics B Thermodynamics C Optics D Acoustics
8 The application of physics principles to design and build bridges is an example of: A Pure science only B Engineering C Biology D Astronomy
9 Which method is used to plot magnetic field lines using iron filings? A Sprinkle iron filings around a magnet B Heat the magnet C Hammer the magnet D Dip the magnet in water
10 Which device uses a permanent magnet for its operation? A Electric motor B Loudspeaker C Door catch D All of these
11 Which method is used to demagnetise a magnet by heating it? A Stroking method B Electrical method C Heating method D Induction method
12 A testable statement that can be proven true or false is called a: A Law B Hypothesis C Theory D Fact
13 What is physics? A The study of living things B The study of matter and energy and how they interact C The study of human society D The study of rocks and minerals
14 Magnetic field lines outside a magnet run from: A South pole to North pole B North pole to South pole C East to West D West to East
15 How can a magnet be demagnetized using electricity? A By passing direct current through a coil B By passing alternating current through a coil C By using a battery D By connecting a resistor
16 The scientific method includes all of the following EXCEPT: A Observation B Hypothesis C Experiment D Belief without evidence
17 Which material is most suitable for making a temporary magnet? A Soft iron B Steel C Copper D Plastic
18 The strength of an electromagnet does NOT depend on: A Number of turns of the coil B Current in the coil C Material of the core D Color of the wire
19 Which method is used to magnetise a soft iron piece by stroking? A Stroking with a magnet B Heating the iron piece C Hammering the iron piece D Cooling the iron piece
20 The application of scientific knowledge for practical purposes is called: A Science B Technology C Engineering D Mathematics
21 The branch of physics that deals with the study of light is called: A Mechanics B Optics C Acoustics D Thermodynamics
22 Which device uses a permanent magnet to separate iron from other materials? A Loudspeaker B Magnetic separator C Door catch D Compass
23 A material that is weakly repelled by a magnet is called: A Ferromagnetic B Paramagnetic C Diamagnetic D Non-magnetic
24 The study of the physical properties of stars and galaxies is called: A Geophysics B Astrophysics C Biophysics D Computation physics
25 What is a key characteristic of a scientific theory? A It is a guess that cannot be tested B It is supported by a large body of evidence C It is never changed D It is the same as a hypothesis