Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.
If you take all the air out of there, you have probably gotten rid of most of the medium through which the sound can travel, so light can travel through a vacuum, but sound cannot, so Number 1 must be our best answer. 0129
Number 8 -- Which statement correctly describes one characteristic of a sound wave? 0142
A sound wave can travel through a vacuum -- No, that is not it. 0147
A sound wave is a transverse wave. That is also not true, as sound waves are longitudinal or compressional. 0151
The amount of energy a sound wave transmits is directly related to the wave's amplitude. 0156
That is true. Amplitude corresponds to the energy of a sound wave. The correct answer is Number 3. 0162
Number 9 -- A television remote control is used to direct pulses of electromagnetic radiation to a receiver on a television. 0171
This communication from the remote control to the television illustrates that electromagnetic radiation is a longitudinal wave -- No, EM waves our transverse...0178
...possesses energy inversely proportional to its frequency -- No, it is going to be directly proportional to the frequency. 0189
It diffracts and accelerates in air. No, it goes at a constant speed in air -- 3 × 108m/s. 0195
It transfers energy without transferring mass. Yes, waves transfer energy. Correct answer there is Number 4. 0203
Last one -- The diagram below represents a transverse water wave propagating toward the left. 0211
A cork is floating on the water's surface at point (P). 0217
In which direction will the cork move as the wave passes point (P)? 0221
Again, it is a transverse wave, so the direction of the cork, must be perpendicular to the waves velocity or up and down. 0224
As the wave moves through the left, our cork is going to go down, then up, then back down, so our answer must be Number 2. 0232
Hopefully, that gets you a good start on wave basics. 0243
If this went great -- Terrific -- Go ahead and keep moving on. 0246
These are not quite at the level of AP questions, but at least it checks a fundamental understanding. 0249
If it did not go well, now would be a great time to go back and review the lesson on wave basics. 0254
Thanks so much for your time everyone and make it a great day!0258
The book features an effective, 5-step plan to guide your preparation program and help you build the skills, knowledge, and test-taking confidence you need to succeed. This fully revised edition covers the latest course syllabus and matches the new exam. It also includes access to McGraw-Hill Education’s AP Planner app, which will enable you to customize your own study schedule on your mobile device. It includes a full-length practice AP Physics 1 exam and 3 separate study plans to fit your learning style.
This book is written by our very own Professor Fullerton and features more than 600 worked-out problems with full solutions and deeper understanding questions. AP Physics 1 Essentials covers all major topics included in the AP Physics 1 course, including: kinematics, dynamics, momentum, impulse, gravity, uniform circular motion, rotation, work, energy, power, mechanical waves, sound, electrostatics, and circuits.