WorksheetsElectricity
Total questions: 12
Worksheet time: 12mins
Which of the following circuit components of the car works as ENERGY SOURCES (fonts d'energia)?
Battery
Switch
Light bulb
Wire
Motor
Which of the following circuit components of the car works as LOADS (càrregues)?
Light bulb
Switch
Battery
Wire
Motor
This circuit is...
A series circuit (circuit en sèrie)
A parellel circuit (circuit en paral·lel)
This circuit is...
A parallel circuit (circuit en paral·lel)
A series circuit (circuit en sèrie)
When we take off a jumper, our hair strands often separates from one another. Do you know why?
Because some hairs become positively charged and some others negatively charged.
Because some hairs have a net charge and some others not.
Because they are all charged with the same type of charge.
This is the process in which a balloon discharges. What is going on?
Both, the wall and the balloon have the same type of charge
The balloon transfers the negative charge to the wall.
The wall transfers the positive charge to the balloon.
What could this boy do to discharge his hair?
He should touch his hair with a piece of wood, because wood is an insulator material.
He should rub his hair softly with a wool sweater.
He should touch his hair with his fingers because fingers are conductors.
Which image represents the small charges in the hair and in the sweater once we have rubbed them together?
A
B
C
D
Which of these two components conducts electricity?
Which circuit elements are there in this diagram?
Wire
Light bulb
Switch
Motor
Battery
Which circuit elements are there in this diagram?
Wire
Light bulb
Switch
Motor
Battery
Do you think is a good idea?
Yes, because hair dryers are often in the bathroom.
No, because tap water contains dissolved salts and it conducts electricity so there is a risk of electrocution.
