Which of the following objects gives off light?
1 4
We can see a shadow when the light shines on (an opaque object / a transparent object)
an opaque object
light travels in (curve / straight / dotted) lines
straight
When the light source is closer to the object, the shadow is (the same / smaller / bigger)
bigger
When the light source is farther from the object, the shadow is (smaller / bigger / the same)
smaller
Which of the following objects can reflect clear images
A B
Which of the following are images in plane mirrors
B C
