PSLE Science: Understanding Light and Shadows

What was the purpose of Tom's experiment with the four materials and the torch?

• To measure the thickness of the materials

• To observe how shadows are formed

• To test the durability of the materials

• To create a light show

In the experiment, what does the presence of a shadow on material C indicate?

• Material C is translucent

• Material C is reflective

• Material C is opaque

• Material C is transparent

How can we determine if a material allows light to pass through?

• By checking if it casts a shadow

• By measuring its thickness

• By observing if light passes through it

• By feeling its texture

What conclusion can be drawn about material D based on its position in the experiment?

• Material D is definitely opaque

• It is not possible to determine the transparency of material D

• Material D is definitely transparent

• Material D is definitely translucent

Which statement about material B is correct based on the experiment?

• Material B allows light to pass through

• Material B does not allow light to pass through

• Material B is behind material C

• Material B is reflective