Small Appliances

What is the use of this home appliance?

• to heat food to a desired temperature

• to remove dust and small particles

• to transmit moving images and sound

What is the use of this home appliance?

• to produce visible light from electric power

• to cool down a space

• to heat food to a desired temperature

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

What is the danger in this picture?

• She is trying to plug more than one appliance into one socket.

  (Cô ấy đang cố gắng cắm nhiều thiết bị vào một ổ cắm)

• She is touching a damaged wire with exposed metal.

  (Cô ấy đang chạm vào chỗ kim loại của sợi dây bị hỏng)

• She is using an electrical appliance with wet hands.

  (Cô ấy đang sử dụng một thiết bị điện với bàn tay ướt)

Which of the following small appliances uses electromagnetic induction to heat food?

• Microwave oven

• Toaster

• Induction cooktop

• Electric kettle

What is the primary energy conversion in a toaster?

• Electrical to thermal

• Thermal to electrical

• Mechanical to thermal

• Chemical to electrical

Which small appliance uses a compressor to change the state of a refrigerant?

• Blender

• Refrigerator

• Microwave oven

• Electric fan

Tags

NGSS.MS-PS3-3

What is the function of a thermostat in an electric iron?

• To convert electrical energy to heat

• To regulate temperature

• To increase electrical resistance

• To decrease power consumption

Tags

NGSS.MS-PS3-3

Which of the following small appliances uses a nichrome wire for its heating element?

• Electric heater

• Blender

• Refrigerator

• Electric fan

Tags

NGSS.MS-PS3-3

What type of motor is commonly used in a vacuum cleaner?

• Induction motor

• DC motor

• Universal motor

• Stepper motor

Which small appliance uses a piezoelectric crystal to generate sound waves?

• Electric toothbrush

• Ultrasonic cleaner

• Hair dryer

• Electric shaver