Electric Heat

While he is making soup in a pot, Mr. Yamamoto turns on the stove. Which BEST explains what happens when he turns on the stove?

• He adds energy and this causes the temperature in the pot to rise.

• He adds energy and this causes the temperature in the pot to decrease.

• He takes away energy and this causes the temperature in the pot to rise.

• He takes away energy and this causes the temperature in the pot to decrease.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

What is the primary mechanism by which electric heaters warm a room?

• Conduction

• Convection

• Radiation

• Evaporation

Tags

NGSS.MS-PS1-4

Which of the following materials is commonly used as a heating element in electric heaters?

• Copper

• Aluminum

• Nichrome

• Iron

Tags

NGSS.MS-PS3-3

What is the role of a thermostat in an electric heater?

• To increase the voltage

• To decrease the current

• To regulate the temperature

• To change the resistance

Tags

NGSS.MS-PS3-3

Which of the following is a disadvantage of using electric heaters?

• High efficiency

• Low maintenance

• High operational cost

• No emissions

Tags

NGSS.MS-PS3-3

How does an electric heater convert electrical energy into heat?

• By using a chemical reaction

• By using a magnetic field

• By using resistance

• By using a capacitor

What is the unit of electrical energy consumed by an electric heater?

• Joule

• Watt

• Kilowatt-hour

• Ampere

Which of the following is a safety feature commonly found in electric heaters?

• Overheat protection

• Automatic shut-off

• Child lock

• All of the above

Tags

NGSS.MS-PS3-3

What type of current do most electric heaters use?

• Direct current (DC)

• Alternating current (AC)

• Pulsating current

• Static current

Which of the following is a real-world application of electric heating?

• Electric stove

• Refrigerator

• Air conditioner

• Ceiling fan

Tags

NGSS.MS-PS3-3