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Understanding Simple Circuits

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Understanding Simple Electrical Circuits

PART A – CIRCUIT OBSERVATIONS

Observe the teacher demonstrating a complete circuit followed by an incomplete circuit. Record your predictions, observations and explanations using evidence from the demonstration.

Prediction
What do you predict?
Complete circuit:
Incomplete circuit:
Observation
What did you see?
Evidence
What evidence supports your idea?
Explanation
Why did this happen?

PART B – CIRCUIT DIAGRAM ANALYSIS

Study each circuit diagram. Circle Yes or No and explain your reasoning using evidence from the lesson.

A. — | | — o—o — (⊗) —
Will it work?
Yes
No
Why?
B. — | | — o/ o — (⊗) —
Will it work?
Yes
No
Why?
C. — | | — o—o — (⊗)    —
Will it work?
Yes
No
Why?
D. — | | — o—o — (⊗)
                   —┘
Will it work?
Yes
No
Why?

Redraw B, C or D correctly below. Use standard circuit symbols.

PART C – EXIT TICKET

1. Draw a complete circuit using standard symbols.
2. Explain why the globe lights in a complete circuit.
3. Describe one piece of evidence that helped you understand how a complete circuit works.

Safety Reminder: Observe carefully. Do not handle circuit components unless instructed by the teacher.

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