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WorksheetsLight and Electricity recap
Total questions: 18
Worksheet time: 9mins
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
What electrical symbol is this?
Closed switched
Wire
Open Switch
Buzzer
A bulb will be brighter, if you use more batteries.
True
False
What electrical symbol is this?
Cell
Battery
Wire
Bulb
What happens to the charges to make a static charge build up?
the charges become unbalanced
the charges become balanced
the charges become excited
What causes the build up in charge when lighting occurs?
Clouds becoming hotter and hotter
Particles in clouds rubbing against each other
The sun shining through rain droplets
Which component provides the power supply for the circuit?
Lightbulb
Wire
Cell
What can cause a static charge?
when a metallic and plastic material are next to each other
when some materials rub against each other
when two materials repel each other
What electrical symbol is this?
Cell
Bulb
Wires
Battery
