STEAM Pop Quiz, AC Motors, Generators and Batteires

Which are components of an AC electric motor?

• Battery and solar panel
• Fan and compressor
• Circuit board and wires
• Stator and rotor components

During a school science project, Rohan is explaining the primary function of the rotor in an AC electric motor. What should he describe as the main function?

• To supply power

• To create a magnetic field

• To convert electrical energy to mechanical energy

• To control the speed of the motor

Abigail is studying for her physics exam and is trying to understand the difference between an electric motor and an electric generator. How should you explain it to her?

• An electric motor produces light energy while an electric generator produces sound energy.

• An electric motor converts electrical energy into mechanical energy, while an electric generator converts mechanical energy into electrical energy.

• An electric generator converts electrical energy into heat energy.

• An electric motor converts mechanical energy into electrical energy.

William is using a device to convert electrical energy into mechanical energy for his science project. What is this device called?

• Electric motor

• Electric generator

• Transformer

• Resistor

Priya is using a device in her science project that converts electrical energy into mechanical energy. What is this device called?

• Generates heat energy from electrical energy

• Converts mechanical energy into electrical energy

• Electric motor

• Transfers kinetic energy into potential energy

Tags

NGSS.MS-PS3-5

During a chemistry lab, Nora is studying electrochemical cells and asks, 'What type of ions are in an anode?'

• Cations

• Anions

• Neutrons

• Protons

During a chemistry lab, Grace is examining the behavior of ions at electrodes. What type of ions are attracted to the cathode?

• Cations

• Protons

• Neutrons

• Anions

Tags

NGSS.MS-PS2-5

During a chemistry class, Ethan is asked to identify the charge on a sodium ion (Na+) after it loses an electron. What is the charge on this cation?

• Zero

• Negative

• Neutral

• Positive

Evelyn is studying chemistry and examines an ion typically found in table salt. What is the charge on this anion?

• Negative

• Zero

• Neutral

• Positive

During a science project, Evelyn, Zoe, and Aiden are building a flashlight. They discuss the 3 main parts of the dry cell battery they are using. What are these parts?

• zinc, copper, aluminum

• positive, negative, neutral

• cathode, anode, electrolyte

• anode, cathode, insulator