Free Printable CHAPTER2: Waves Motion (DP024)

1.

1. How a fishing float moves on the surface of a lake when a wave passes beneath it?

a)

It bobs up and down vertically.

b)

It moves back and forth horizontally.

c)

It moves in a vertical plane, exhibiting both motions described in (a) and (b) simultaneously.

2.

The slinky spring is now simulates,

a)

Longitudinal wave

b)

Electro-magnetic wave

c)

Transverse wave

d)

Standing wave

3.

The slinky spring is now simulates,

a)

Longitudinal wave

b)

Electro-magnetic wave

c)

Transverse wave

d)

Standing wave

4.

String I and string II have the same length. A wave of the same amplitude and frequency travels on each of these strings.

Which of the drawings correctly shows the waves,

a)

b)

c)

5.

String I and string II have the same length.

A wave of the same amplitude on each of these strings.

But, and frequency travels on string II is higher than string 1.

Which of the drawings correctly shows the waves,

a)

b)

c)

6.

Bat are using ultrasound to navigate in dark night. Sound is one of the

a)

longitudinal wave

b)

transverse wave

c)

standing wave

d)

electromagnetic wave

7.

The equation that describes a transverse wave on a string is

y(x,t) = 3 sin (4t-6x).

where y is the displacement of a string particle and x is the position in meter (m)

Calculate the wave period ,T ?
hint: $\omega=\frac{2\pi}{T}$

a)

5π

b)

4π

c)

0.2π

d)

0.5π

8.

The equation that describes a transverse wave on a string is

y(x,t) = 5 sin (4t-2x).

where y is the displacement of a string particle and x is the position in meter (m)

Calculate the wave wavelength, $\lambda$
hint: $k=\frac{2\pi}{\lambda}$

a)

4π

b)

π

c)

2π

d)

0.5π

9.

The equation that describes a transverse wave on a string is
$y\left(x,t\right)=10\ \sin\ \left(2\pi t\ -4\pi x\right)$
where y is the displacement of a string particle and x is the position in meter (m)

Calculate the wave travelling speed, v ?
USE: $v=\lambda f=\left(\left(\frac{2\pi}{k}\right)\left(\frac{\omega}{2\pi}\right)\right)$

a)

$v=\left(0.5\right)\left(1\right)=0.5\ m\ s^{-1}$

b)

$v=\left(2\pi\right)\left(1\right)=2\ \pi\ m\ s^{-1}$

c)

$v=\left(0.5\right)\left(2\pi\right)=\pi^{ }m\ s^{-1}$

d)

$v=\left(2\pi\right)\left(4\pi\right)=8\pi^2\ m\ s^{-1}$

10.

The graph represent equation of a wave motion. Which of the wave equation fit with the graph?

a)

y(x,t) = 2 sin (6t + x)

b)

y(x,t) = 2 sin (3t + $\frac{2}{3}\pi$ x)

c)

y(x,t) = 2 sin (3t + $\frac{3}{2}\pi$ x)

d)

y(x,t) = 2 sin ( $\frac{3}{2}\pi$ t + 3x)

11.

Which of this water wave has highest frequency?

a)

b)

c)

d)

12.

The equation that describes a transverse wave on a string is
$y\left(x,t\right)=10\ \sin\ \left(2\pi t\ -4\pi x\right)$
where y is the displacement of a string particle and x is the position in meter (m)

In what direction the wave moving?

a)

RIGHT

b)

LEFT

c)

STATIONARY

d)

10 meter above

13.

Which of the properties of 'Mechanical Waves', is FALSE?

a)

produced by disturbance

b)

not transfer energy

c)

particle vibrate in simple harmonic motion

d)

required medium to travel

CHAPTER2: Waves Motion (DP024)

Total questions: 13

Worksheet time: 7mins

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