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1.

From the equation below

y=A\sin\left(\omega t+\phi\right)

the letter

y

refer to:

a)

Angular velocity

b)

Displacement

c)

Amplitude

d)

Initial phase

2.

Unit of $A$ is:

(a)

3.

Unit of $\omega$ is:

(a)

4.

Unit of $\phi$ is:

(a)

5.

Which of the following formulas is not describe oscillation motion?

a)

$\omega=2\pi f$

b)

$f=\frac{1}{T}$

c)

$e_c=1-\frac{T_c}{T_h}$

d)

$T=\frac{2\pi}{\omega}$

6.

The value of the resultant vector as in the picture is:

a)

$a+b$

b)

$a-b$

c)

$\sqrt{a^2+b^2}$

d)

$\sqrt{a^2+b^2+2ab\cos\theta}$

7.

As in the picture $\overrightarrow{A}$ is the sum of $\overrightarrow{A_x}$ and $\overrightarrow{A_y}$ which its value equal:

a)

$A_x+A_y$

b)

$A_x-A_y$

c)

$\sqrt{A_x^2+A_y^2}$

d)

$\sqrt{A_x^2-A_y^2+2A_xA_y\cos\theta}$

8.

The sum of $y_1=A_1\sin\left(\omega t+\phi_1\right)$

and $y_2=A_2\sin\left(\omega t+\phi_2\right)$ is $y=y_1+y_2=A_{ }\sin\left(\omega t+\phi_{ }\right)$ . Which of the following is constant?

a)

Angular velocity

b)

Initial phase

c)

Period

d)

Amplitude

9.

From the equation below

y=A\sin\left(\omega t+\phi\right)

the letter

A

refer to:

a)

Angular velocity

b)

Displacement

c)

Amplitude

d)

Initial phase

10.

From the equation below

y=A\sin\left(\omega t+\phi\right)

the letter

\omega

refer to:

a)

Angular velocity

b)

Displacement

c)

Amplitude

d)

Initial phase

11.

Q1: As in the figure find

a. Amplitude

b. Initial phase

c. Period

d. Frequency

e. Angular velocity

f. And write the harmonics motion equation.

4 lines

12.

If the two waves are traveling to the right and
have the same frequency, wavelength, and amplitude but differ in phase, we can express their individual wave functions as

y_1=A\sin\left(kx-\omega t\right)

and

y_2=A\sin\left(kx-\omega t+\phi\right)

. By using mathematic method, find the resultant wave function.

4 lines

រលក

Total questions: 12

Worksheet time: 13mins

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