ACADEC 2025 Science Test #2

A negatively charged particle ____________________

• possesses more protons than electrons

• possesses more electrons than protons

• has equal numbers of protons and electrons

The circuit shown on the picture above is an example of a /an _______

• Closed Circuit

• Open Circuit

What can we do to make this circuit pictured a "closed circuit" so the bulb lights up?

• connect wire to the terminal

• disconnect the wire from the lightbulb

• screw in the lightbulb

• replace the battery

) What would happen if an extra battery cell is added?

• A)The lights will glow dim
• The wire will glow
• The lights will glow brighter
• None of the above

A flow of electrons through a conductor is called:

• A river
• A spark
• An electron flow
• A current

To complete a circuit the switch must be

• unattached
• open
• closed

The unit to measure power

• watt

• ohm

• volt

• ampere

The measure of electrical resistance

• watt

• ohm

• volt

• ampere

Tags

NGSS.HS-PS3-5

The unit for electric current

• watt

• ohm

• volt

• ampere

What does the switch do in a circuit?

• It supplies the power.
• It carries electricity.
• It opens and closes the circuit.
• It is an insulator.