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Q2 SUMMATIVE ASSESSMENT
Quiz by SHELDON DALA
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1. Who among these scientists provided equations that proved the relationship between electricity and magnetism?
2. Which of the following is NOT an example of an electromagnetic wave?
3. Earth’s atmosphere protects the earth from harmful electromagnetic radiation. Which of the following radiation can penetrate our atmosphere?
4. Which of the following BEST describes the relationship between wavelength and frequency?
5. Electromagnetic wave A has a wavelength of 1x10-7 m while electromagnetic wave B has an energy of 2x10-24 m. Between the two, which has the higher frequency?
6. Which set of waves is arranged in order of increasing frequency?
7. Radio waves are commonly used to transmit information such as in television. Which of the following statements are CORRECT for radio waves?
i. Radio waves have the longest wavelength
ii. Radio waves wavelengths range from 1 to 10 m
iii. Radio waves frequencies range from 7.5 x 1014 to3 x 1018 Hz
iv. Radio waves have the lowest frequency in the electromagnetic spectrum
8. Microwave radiation is useful in which application?
9. Temperature variation of different parts of a person’s body can be detected by analyzing the emission pattern of which type of electromagnetic radiation?
10. Electromagnetic wave provides energy for living things to survive. Which of the EM waves includes the wavelength needed during food making in plants?
11 Which of the following is an application of ultraviolet radiation?
i. Production of vitamin D by the inner layers of the skin
ii. Sterilizing water in drinking fountains
iii. Identify fake bank notes
iv. Kill cancer cell
12. Which of the following material can x-rays penetrate?
13. Exposure to the highest frequency of electromagnetic waves can be dangerous to the human body, but some can be useful in medicine. Which EM radiation can be utilized to target cancer cells and kill them?
14. Which of these electromagnetic waves is the least harmful to cells?
15. A ray of light is incident on a surface at 66° from the normal. What will be the angle of the reflected ray from the normal?
16. Is it TRUE that (I) Convex mirror always forms upright, reduced, and virtual images, and; (II) Most department stores use concave mirrors because it gives a wider range of view?
17. Where will the image be formed by a concave mirror if the object is placed in the center as shown in figure 1? (Choose your answer from the figure).
18. A candle is placed 5.00cm away from aconcave mirror with a focal length of 10 cm. Describe the image formed.
i. 10cm iii. real v. enlarged vii. upright
ii. 0.1cm iv. virtual vi. reduced viii. Inverted
19. Sun’s rays are observed to focus at a point behind the fish bowl near the window. The fish bowl act as what type of lens?
20. What type of lens produces smaller and upright images?
1. Where will the image form if the object is placed between F and 2F as shown in Figure 2?
22. An object is kept at a distance of 80cm from a convex lens of focal length of 40cm. Describe the image.
i. 80cm iii. Real v. enlarged viii. upright
ii. 0.0125cm iv. Virtual vi. Reduced xi. inverted
vii. same size
23. Whatoptical instrument is used to see far-away objects?
24. What kind of lens is used in simple microscope?
25. In which case or cases is an electric field present?
i. Adead power line.
ii. A charge that is momentarily at rest.
iii. Aspark jumping between two nearby rods.
26. When there is a change in the magnetic field in a closed loop of wire, all these might takes place EXCEPT;
27. How will you describe the magnetic field around a current-carrying coil?
28. A coil moves away from a magnet. Consider the following factors:
i. Strength of the magnet
ii. Number of turns in a coil
iii. Speedat which the magnet moves
What can affect the electromotive force (EMF) induced in the coil?
29. An electric generator and electric motor are similar is that _______________.
Loops of wire in a motor rotate because a _______________.