Roboguru

Pertanyaan

Choose A, B, C, or D for the correct answer.

The following text is for questions 21 to 23.

Materials:

  • shoebox
  • paintbrush
  • black paint
  • newspaper
  • scissors
  • tape
  • tracing paper
  • thick aluminum foil
  • pin

Directions:

  1. Paint the inside of the box black, including the lid.
  2. Cut a small square out of either endof the box.
  3. Cover one of the holes in the box with aluminum foil. Keep the foil tight, and tape down the edges so that no light can get in.
  4. Cover the hole at the other end with tracing paper. Again, keep it taped tightly in place.
  5. Put the lid on the box. If the fit is not very tight, tape around the lid to hold it in place. Make sure you cover all the gaps.
  6. Carefully prick a hole in the center of the foil with a pin. Make the hole as tiny as possible.
  7. You have now made a pinhole camera.
  8. Finally, point the foil end of your pinhole camera at a suitable scene. Look at the image that is formed on the paper screen.

Adopted from: Tom Jackson, Science Activities Light and Color, Connecticut, Grolier Educational Sherman Turnpike, 2002.

What should you do if the lid is not fitted tightly enough on the box?

  1. Cover the camera tightly

  2. Fill in the pinhole with paper

  3. Tape around the lid

  4. Tape the foil end of the pinhole camera

N. Puspita

Master Teacher

Jawaban terverifikasi

Jawaban

jawaban yang benar adalah C.

Pembahasan

Soal menanyakan apa yang harus dilakukan jika tutupnya kotaknya tidak cukup erat.

Pada step ke-5 terdapat kalimat "Put the lid on the box. If the fit is not very tight, tape around the lid to hold it in place". Pernyataan ini sesuai dengan pilihan jawaban C yaitu "Tape around the lid".

Jadi, jawaban yang benar adalah C.

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