What do you see on the wall this time? What shape does the shadow have? If there is a shadow, take the second measuring tape and measure the shadow’s height from the table surface to its top and write its size on a piece of paper. How will the shadow change once you move the object? Place it at the 20-centimeter (eight-inch) mark of the measuring tape. Move the object directly between the wall and the flashlight so it sits on top of the measuring tape.Does the object placed on the table form a shadow? Can you explain why or why not? Switch on the light and look at the wall.What do you think you will see once you switch on the light? Then move it toward the wall until it is located 20 centimeters (eight inches) away from the wall. Take the object and place it next to the flashlight, 25 centimeters (10 inches) away.
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