Semester II Exam

Sound waves

• a. are a part of the electromagnetic spectrum.
• b. do not require a medium for transmission.
• c. are longitudinal waves.
• d. are transverse waves.

A mass-spring system can oscillate with simple harmonic motion because a compressed or stretched spring has which kind of energy?

• a. kinetic
• b. mechanical
• c. gravitational potential
• d. elastic potential

How are frequency and period related in simple harmonic motion?

• a. They are directly related.
• b. Their sum is constant.
• c. Both measure the number of cycles per unit of time
• d. They are inversely related.

Indicate the interval which represents one full wavelength in the wave diagram below.

• a. A to C
• b. B to D
• c. A to G
• d. A to E

A tuning fork is used to produce waves with a frequency of 440 hertz. That waves travel through the air at 344 m/s. What is the wavelength of the sound waves?

• a. 0.15 m
• b. 0.39 m
• c. 0.78 m
• d. 1.28 m

What is the total resistance of the circuit below?

• a. 40 Ohms
• b. 45.5 Ohms
• c. 10 Ohms
• d. 0.89 Ohms

Many electrical wires are wrapped in a plastic coating because plastic is

• a. less expensive
• b. more dense than copper
• c. able to keep its shape
• d. is a good insulator

What type of circuit is shown below?

• a. Complex circuit
• b. Parallel Circuit
• c. Series Circuit
• d. Circuit City

In a series circuit, what stays the same and equal across the circuit?

• a. Current
• b. Voltage
• c. Resistance
• d. Temperature

What type of circuit is shown below?

• a. Complex Circuit
• b. Parallel Circuit
• c. Series Circuit
• d. Circuit City