MCQ
light-sound-heat-l2 MCQ - Practice Questions with Answers
Solve 29 light-sound-heat-l2 questions for RAS/RPSC preparation.
Practice questions
Q1Which statement correctly describes reflection in a plane-mirror activity?
Reflection is the return of light from a surface into the same medium, as seen with a plane mirror. The exact misconception in the traps is light versus sound, while the other traps confuse reflection with refraction or with heat and temperature.
Q2Which pair is correctly matched for heat transfer?
Conduction means heat transfer by direct contact, and it is easiest to observe in solid conductors such as metals. Radiation does not need a material medium, while reflection belongs to light, so those matches fail.
Q3A teacher wants a safe heat activity for Class 6. Which choice is best?
The best activity is safe, observable and tied to conduction. It lets children compare materials without burns, and the teacher can name conductor and insulator after the observation.
Q4A student says, "The metal railing and the wooden bench have different temperatures because the metal feels colder." What should a teacher correct first?
The teacher should separate temperature from the sensation caused by conduction. In the same room, metal and wood may have the same temperature, but metal removes heat from the hand faster, so it feels colder.
Q5Which arrangement best shows that light travels in straight lines in a simple school experiment?
A shadow is formed when an opaque object blocks light travelling in straight lines. The bell and rubber band are sound activities, while the warm spoon is a heat-conduction activity.
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More questions
6How many of the following statements are correct? I. An opaque material can form a clear shadow. II. Sound needs a material medium to travel. III. Radiation needs a material medium. IV. A thermometer measures temperature, not heat.
7How many of the following classroom conclusions are scientifically correct? 1. A thermometer gives a more reliable comparison of hotness than touch. 2. Heat flows from a hotter body to a colder body when there is contact or another transfer path. 3. A steel handle is safer than a wooden handle because steel is a poor conductor.
8A large arrow card points to the left. A student looks at its image in a plane mirror. What should the teacher expect the student to report?
9A child stands 1 m in front of a plane mirror. Which description of the image is correct in this simple classroom situation?
10Which statement pair is correct about sound?
11Match the child observation with the concept: Asha sees a shadow; Imran sees same-size mirror image; Karan tightens a rubber band.
12Devika writes: “A convex mirror makes an erect and smaller image.” How should the teacher respond?
13A child sees an upright image of a pencil in a plane mirror. Which property should also be expected in ordinary classroom observation?
14A teacher wants students to connect vibration with sound using a safe classroom activity. Which activity is most suitable?
15Imran says a thermometer measures heat directly. What correction is most accurate?