What affect the size of a shadow

How to increase the size of the shadow on the screen?

• Move the light source farther from the object

• Move the object closer to the screen

• Change the type of object used

• Move the object closer to the light source

When an object moves closer to a light source, its shadow...

• Gets smaller

• Gets bigger

• Changes shape

• Stays the same size

Fill in the missing words with the correct answer.

Cardboard or metal are _____________ materials that light cannot pass through.

• transparent

• translucent

• opaque

Fill in the missing words with the correct answer.

When an object block out the_______, a ___________ is formed.

• light, shadow

• shadow, light

• stone, light

The nearer the doll (object) to the wall (screen), the __________ the size of the object.

• smaller

• bigger

Light source moves from point C to point A.

What happens to the size of the shadow on the screen?

• becomes bigger

• becomes smaller

• remains the same

Screen moves from point I to point H.

What happens to the size of the shadow on the screen?

• becomes bigger

• becomes smaller

• remains the same

What affects the size of a shadow?

• the distance of the object from the light source.

• the distance of the light source from the object.

• the strength of the light source.

• the angle of the light source shining on the object.

Which of the following casts the darkest shadow?

• 
• 
• 

Moving the duck to position B will give a ________ shadow of the duck

• bigger

• smaller