Energy and Circuits

What is an electrical circuit?

• lets you turn the energy on and off
• a closed path where where electricity flows
• stop electricity from flowing through

What is a battery?

• switch
• power source
• insulator

An incomplete circuit is shown.
To complete the circuit, a wire should be placed from —

• Point D to Point C
• Point B to Point C
• Point A to Point D
• Point B to Point D

Which of these best completes the circuit?

• rubber band
• metal nail
• leather shoelace
• wooden toothpick

A fifth grade class constructed this circuit.  Which of these objects most likely made the light glow when connected to points X and Y?

• plastic straw
• cotton string
• aluminum foil
• rubber eraser

Tags

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Which of these substances conducts electricity the best?

• wood
• brick
• copper
• plastic

What material would be safest to use as an insulator to cover electrical wires?

• rubber
• tin
• aluminum
• water

Energy is...

• feeling good

• the ability to do work or cause change

• the food chain

• looking at TV until you fall asleep

Tags

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Energy of motion is...

• when an object is moving

• light you can see

• a sound you hear

• all around us

Tags

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Sound energy is

• when an object is moving

• light you can see

• a sound you hear

• moves from hot to cold

Tags

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