Antenna

Antenna

Assessment

Interactive Video

Science, Engineering

6th - 12th Grade

Hard

Created by

Quizizz Content

FREE Resource

The video tutorial explains the conversion of alternating electric currents into electromagnetic waves and vice versa. It discusses how the distribution of these waves is influenced by the design of antennas. High gain antennas are noted for their directionality, making them suitable for radar and space communication. In contrast, low gain antennas are effective in all directions, making them ideal for radio signals.

Read more

5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the process of converting alternating electric currents into electromagnetic waves called?

Electromagnetic conversion

Wave transformation

Signal modulation

Current inversion

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What factor primarily affects the distribution of electromagnetic waves?

The weather conditions

The power of the transmitter

The design of the antenna

The frequency of the waves

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of antenna is known for its significant directionality?

Dipole antenna

Low gain antenna

Omnidirectional antenna

High gain antenna

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In which applications are high gain antennas typically used?

Underwater communication

Mobile phones

Television broadcasting

Radar or space communication

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a key characteristic of low gain antennas?

They require high power input

They are used only in space communication

They work equally well in all directions

They are highly directional