Task 1 (Waves and Viration)

Task 1 (Waves and Viration)

7th - 9th Grade

10 Qs

quiz-placeholder

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Task 1 (Waves and Viration)

Task 1 (Waves and Viration)

Assessment

Quiz

Physics

7th - 9th Grade

Medium

Created by

Laura Surya

Used 4+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A wavelength of 0.75 m and the speed of the wave is 150 m / s. What is the frequency of the wave? (In unit Hz)

10

100

20

200

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A vibrating source has a frequency of 300 Hz. The speed of the wave in liquid at a speed of 1500 m/s. What is the wavelength? (In m)

0,05

0,5

5

50

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the frequency of vibration is 440 Hz and the wavelength is 75 cm. What is the speed of the wave? (In unit m/s)

3

30

300

330

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A pendulum is vibrated for 1 minute to produce 40 vibrations. Determine the period and frequency of the pendulum (must in order)!

F = 3 Hz and T = 1,34 s

F = 1,5 Hz and T = 0,67 s

F = 1,34 Hz and T = 3 s

F = 0,67 Hz and T = 1,5 s

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A wave travels with the speed of the wave at 340 m/s. If the wave frequency is 50Hz. Determine the wavelength! (In unit m)

0,147

6,8

0,68

1,47

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When the weather is cloudy a child hears thunder 1.5s after being seen lightning. If the speed of sound in the air is 320 m/s. Determine the distance of the lightning source from the child! (In m) *

21,33

213,3

48

480

7.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

The fundamental difference between transverse waves and longitudinal waves is ... (Choose 2 best answer)

Transverse waves are waves whose propagation is perpendicular to the vibrational direction

Longitudinal waves are waves whose propagation direction is parallel to the direction of their vibrations.

Transverse waves are waves whose propagation is parallel to the vibrational direction

Longitudinal waves are waves whose propagation direction is perpendicular to the direction of their vibrations.

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