Question

Check all that apply "Light travels in a straight line" is an example of a scientific model. Using models is a common practice in the sciences. Which of the following items below is a valid way to complete the sentence, ''A scientific model " a. might use a diagram b. must be something we can test c. is only a mental image, and does not need to be useful for predicting things d. is useful for making predictions e. must be the way Nature works f. Is the same thing as a measurement g. is often a simplification of the way Nature works A pinhole camera is designed with a small hole to let light rays into the camera and it produces an image at the back of the camera If you increase the size of the hole a. More light rays enter the camera b. Fewer light rays enter the camera c. The image becomes brighter d. The image becomes dimmer e. The image becomes sharper f. The image becomes blurrier If I want to increase the size of a pinhole image on the back of a pinhole camera, which of the following could accomplish that goal? a. Move the pinhole closer to the obiect b. Move the pinhole farther from the object c. Move the back of the pinhole camera towards the pinhole (i.e., make the camera smaller) d. Move the back of the pinhole camera away from the pinhole (i.e., make the camera larger) e. Increase the size of the pinhole f. Decre ase the size of the pinhole

Answer 1

A. Answers.

a. Might use a diagram.

b. Must be something we can test.

d. Is useful for making predictions.

G. Is often simplification of the way nature works.

B. Answer

a. Molivhtght will enter in the camera.

C. The image becomes brighter . due to more amount of light.

C. Answers.

Move the pinhole closer to the object.

Move the back of the pinhole camara towads the pinhole.