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1.which of the following is an example of electrical insulator? a.plastic cups b.steel plate c.tire wire
2.which of the followibg ins an conductor of electricity? a.metal spoon b.plastic spoon c.paper plate
3.which of the following is a good heat conductors? a.steel & iron b.glass & paper c.wood & plastic.
4.which does not belong to the group? a.plastic b.paper c.aluminum
5.why some handle of cooking pans made of wood? a.wood is a conductor of heat b.wood is readily available c.wood does not allow heat to pass or flow through it
6.which of the following in an opaque materials? a.wood b.glass window c.covered cellphone
7.which of the materials helps block light? a.clay b.plastic bottle c.cellophane
8.light travels in a_____ a.straight line b.crooked line c.in circle
9.what happens to light when it strikes on the wall? a.light cannot pass through b.it bend the light c.it makes light dis appear
10.when light falls on opaque materials,light is block and it creates___ a.shadow b.design c.picture
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