Grade 8 T2

The product of multiplying frequency of 3 Hz with the periodic time equals...............................

• 1/3 seconds
• 1

• 1/2 seconds
• 6 Hz

One and half complete oscillation contains................................amplitudes.

• 3
• 4
• 2
• 6

..............................is a mechanical transverse wave.

• Light

• Sound
• Water

• Heat

Which wave that has low amplitude>

• First wave

• Second wave

• Third wave

• No correct answer

From the previous graph, What is the periodic time?

• 0.04seconds

• 1 second

• 0.03 seconds

• 0.02 seconds

How many complete oscillations in this graph?

• 1
• 2.5

• 5

• 1.25

In sound wave, the medium particles vibrate.................................to the wave propagation.

• perpendicular
• diagonally
• randomly
• parallel

If the distance between successive crest and trough is 3 m then the wavelength is.............................................

• 2 meters
• 3 meters

• 8 meters
• 6 meters

......................................is number of complete oscillations done in 1 sec.

• frequency
• amplitude
• velocity
• wavelength

Wave is a.............................that propagates and transfers energy.

• sound
• disturbance
• motion
• vibration