Shadowcould beformedwhen asource of light is blocked by solid materials. the stronger light will forms a darker shadow.

Pembahasan:

1. Shadow will be formed when a solid material is placed in front of a source of light. The solid material will block the light, resulting in an opaque shadow of the material. A darker shadow will be formed when the light is completely blocked by the materials.

2.

a. Opaque (material yang bisa membentuk bayangan): tin foil, wooden block.

b. Translucent (membentuk bayangan semu): tinted glass.

c. Transparent (tidak membentuk bayangan): clear plastic wrap, clear glass.

3.

a. Chad using a table lamp as the light source

b. Chad using a piece of skirt as the screen

c. to make a smaller shadow, Chad should move the light source or the object farther from each other.

4.

a. Between 8:00 and midday the shadow become shorter, because the sun moving up.

b. Between midday and 16:00 the shadow becomes longer, because the sun moving down toward horizon.

c. The shadow is longest at sunrise and sunset, because the sun light will be blocked by the entire stick, those will form the longest shadow.

d. The shadow is shortest in the middle of the day, because the sun light only blocked by minimum part of the stick, those will form the shortest shadow.

5.  Human Eyes have a limited capability to catch a light. In the beginning, Emilia and Julio can't see the light because the light source is too far away. As the light source become bigger as they walk closer to the source, their eyes catch the light source from outside the tunnel and they can finally see the light.

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