Light and Electricity recap

Opaque objects let most light rays pass through them.

• True

• False

Shadows are made when...

• An transparent object blocks the light

• An opaque objects blocks the light

• A translucent object blocks the light

The closer an object is from the light source, the smaller the shadow gets.

• True

• False

What happens when light hits an object?

• It is absorbed by the object.

• It moves around the object.

• It is reflected off the object.

What is wrong in the following circuit diagram?

• Two bulbs can't glow with one battery

• The cells in the battery are not connected properly.

• It will work. All components are connected properly

• There is no switch.

What electric symbol is this?

• Motor

• Cell

• Buzzer

• Bulb

What objects are insulators?

• Rubber

• Metal

• Copper

• Wood

If there is a break in a circuit, it means...

• Electricity do flow

• Electricity does not flow

Are humans conductors of electricity?

• Yes

• No

___________is a kind of electrical force that makes electricity move through a wire and we measure it in volts.

• Current

• Electrons

• Voltage

• Electricity