SCIENCE 5 QUARTER 3 TEST

1. Which of the following is considered as the power supply that can convert some type of energy into electric energy?

• 
• 
• 
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3. What composes a simple electric circuit?

• A. bulb, battery, electricity, fuse

• B. fuse, bulb, switch, battery

• C. bulb, wire, switch, battery

• D. bulb, fuse, switch, electricity

6. What happens to the bulb when two batteries are used in a circuit?

• A. The bulb will glow dimmer.

• B. The bulb will glow brighter.

• C. The batteries will become weaker.

• D. The batteries cannot give enough energy for the circuit.

11. What must you do to increase the strength of your electromagnet?

I. Use fewer dry cells to decrease the voltage.

II. Use more dry cells to increase the voltage.

III. Increase the number of coils around the nail.

IV. Decrease the number of coils around the nail.

• A. I and III

• B. I and IV

• C. II and III

• D. II and IV

13. What is the source of energy of an electromagnet?

• A. Nail

• B. Coiled Wire

• C. Battery

• D. Hanging Nails

15. Which of the following does NOT affect the strength of an electromagnet?

• A. Strength of the current

• B. Number of turns of the coil

• C. Material used as a center/core.

• D. Type of switch used.

If the circuit is closed, the bulb will light up.

• True

• False

Which circuit is pictured below?

• Parallel
• Incomplete
• Series

Electrical energy is from...

• the flow of moving lightning.

• the flow of moving electrons.

• the flow of moving lights.

• the flow of moving circuits.

What type of electrical circuit is this?

• open circuit

• closed circuit

• series circuit

• parallel circuit