29 Do Now Now

What is the typical frequency range of microwaves?

• 300 MHz to 3 GHz

• 300 MHz to 300 GHz

• 3 GHz to 30 GHz

• 30 GHz to 300 GHz

Tags

NGSS.HS-PS4-1

What is the wavelength range of microwaves?

• 1 mm to 1 m

• 1 cm to 10 cm

• 1 nm to 1 mm

• 1 m to 10 m

Tags

NGSS.HS-PS4-1

What is the speed of microwaves in a vacuum?

Tags

NGSS.HS-PS4-1

Which component in a microwave oven generates microwaves?

• Magnetron

• Transformer

• Capacitor

• Diode

Tags

NGSS.HS-PS4-5

How do microwaves heat food in a microwave oven?

• By conduction

• By convection

• By radiation

• By induction

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-5

What is the primary application of microwaves in communication?

• Satellite communication

• Underwater communication

• Optical fiber communication

• Infrared communication

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-5

What is the typical frequency of microwaves used in microwave ovens?

• 2.45 GHz

• 1.45 GHz

• 3.45 GHz

• 4.45 GHz

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-5

What is the effect of microwaves on water molecules in food?

• They freeze the water molecules

• They vibrate the water molecules

• They ionize the water molecules

• They condense the water molecules

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following is NOT an application of microwaves?

• Radar systems

• X-ray imaging

• Wireless networks

• Microwave ovens

Tags

NGSS.HS-PS4-5

Tags

NGSS.HS-PS4-1