Chapter 13 Review Mr. Hauser

Rules of the Game Working in TEAMS, you will be asked to answer questions from the assigned chapters. You have 30 seconds to write the answer down on the dry erase board. When the teacher says TIME’S UP, a team leader will stand up and show the teacher their answer.

Rules (Continued) Each correct answer is worth one point, unless otherwise stated. Teams can lose points for inappropriate conduct, comments, or cheating. The team with the most points at the end of the game wins!

Question 1 The very top part of a wave is called the ___________.

crest

Question 2 The distance between equilibrium and crest of a wave is called the ______. A)frequency B)wavelength C)amplitude D)period E)speed

C) amplitude

Question 3 The distance from one point on a wave to the same point on the next consecutive wave is called __________. A)frequency B)wavelength C)amplitude D)period E)speed

B) Wavelength

Question 4 The mathematical name for the shape of a wave is called a __________ wave.

sine

Question 5 Since sound cannot travel in a vacuum it is called a(n)… A) mechanical wave B) non-mechanical wave C) transverse wave D) Electromagnetic wave

A) Mechanical wave

Question 6 What are the metric units used to measure frequency?

Hertz

Question 7 The faster the sound moves through the air, … A)The colder the air must be. B)The warmer the air must be. C)The dryer the air must be. D)The higher frequency sound it must be.

B) The warmer the air must be

Question 8 What is the range of human hearing? A. 5 Hz-5,000 Hz B. 10 Hz - 10,000 Hz C. 20 Hz - 20,000 Hz D. 30 Hz - 30,000 Hz E. 40 Hz - 40,000 Hz

C) 20 Hz - 20,000 Hz

Question 9 What is the type of wave that vibrates perpendicular to its direction of travel? Hint: light, x-rays, radio waves fall into this category

Transverse waves

Question 10 What is the other name for a longitudinal wave?

Compression wave

Question 11 In a longitudinal wave the area between compressions is called…

rarefaction

Question 12 What is the symbol used for wavelength?

Question 13 Which two factors affect the speed of sound? A)frequency and period B)amplitude and wavelength C)air temperature and humidity D)wavelength and elasticity

C) Air temperature and humidity

Question 14 The pitch of a sound depends on which of these? A.wavelength B.amplitude C.intensity D.loudness E.frequency

E) frequency

Question 15 Periodic motion of an object that results from a restoring force that is proportional to displacement is called…

Simple Harmonic Motion

Question 16 What are the units used to measure the spring constant “k”?

Newtons/Meter

Question 17 When sound waves bend due to a difference in air temperature it is called… A)reflection B)reverberation C)echoing D)refraction

Question 18 Sound waves that are beyond the frequency range of human hearing are called _____________.

Ultrasonic

Question 19 If an object oscillates 20 complete cycles in 5 seconds, what is its period?

0.25 seconds

Loudness of sound is measured in units called... Question 20

Decibels

The special frequency an object has that depends on its elasticity and shape is referred to as... Question 21

Natural Frequency

When an object receives a sympathetic vibration from an outside source that matches its natural frequency and the object vibrates with a large amplitude _____________ is occurring. Question 22

Resonance

If the frequency of a radio wave is 95.1 MHz, and its speed is 300,000,000 m/s. What is its wavelength? Question 23

3.15 meters

When two waves occupy the same space at the same time they __________ with one another. Question 24

Interfere

When two wave interfere that are in phase and the resulting wave that gets created has a larger amplitude __________ interfence has occured. Question 25

Constructive

The rhythmic pattern generated by the interference of two waves at a similar frequency is called… Question 26

Beats

This is the term for the apparent change in frequency due the motion of the source or observer. Question 27

Doppler Effect

If a source of sound is moving toward an observer, that observer would perceive… A)a higher pitch B)a lower pitch C) the same sound that the source would hear. Question 28

A) A higher pitch

If you are designing a pendulum clock to tick with a frequency of 1Hz, how long should it be? Question 29

0.25 meters

From the lab, what was the only factor that affects the period of a pendulum? Question 30

Length

A spring has a constant of 2000 N/m. With a certain mass on it, it has a period of seconds. How much mass is on it? Question 31

35.7 kg

FINAL QUESTION A spring is stretched 6.7 cm when a 300 gram mass is on it. If the 300 g mass is replaced with a 500 gram mass and the spring-mass system is set in motion, what will the period be?

0.67 seconds