- Questions 1. The 1st law of thermodynamics states that: A. Energy can be created and destroyed B. Energy always transforms from light into vibration C. Energy cannot be created nor destroyed D. Energy can only be created, but not destroyed E. None of the above 2.What is one of the main sources of chemical energy for both pla A. carbon dioxide B. fertilizer C. glucose D. sunlight E. water 3. A __ is an example of a primary consumer. A. tree B. wolf C. deer D. hawk 4.Name the correct order of steps for the water cycle: A. condensation , evaporation, fresh water,precipitation B. condensation, fresh water, evaporation,precipitation C. fresh water,precipitation , evaporation,condensation D. evaporation, fresh water, condensation precipitation E. evaporation condensation,precipitation, fresh water A __ is an example of a producer. A. tree B. wolf C. deer D. hawk
- A Particle Emitted During a Nuclear Reaction [ ( )_(-1)^0 e ] 1. Which of the following rows indicates the identity of the particle, the charge of the particle and the form of radiation associated with the particle? The statement above is best completed by the answers in row: Row & Identity of Particle & Charge of Particle & Form of Radiation square & Positron & (+) & Alpha square & Positron & (+) & Beta square & Electron & (-) & Alpha square & Electron & (-) & Beta
- 6. A woman, driving a golf ball off a tee gives the ball a speed of 38m/s The mass of the ball is 0.045 kg, and the duration of the impact with the golf club is 6times 10^-3 seconds. a. What is the change in momentum of the ball? b. Determine the force applied by the club.
- Story #2: A car drives 73m [W] to a stop sign.It then continues on for a displacement of 46m [W] . What is the displacement of the car?
- Light and Sound 1) What is sound measured in? Science 15 Exam Review 3) What part of your ear catches vibrations? 2) What makes sounds? 5) Where can you hear echoes? Why do you hear them? 4) How do sound waves move? 6) What is the pitch we hear caused by? 7) Are low frequency sound waves close together or far apart? 8) Can people hear all the sounds that animals make? Why or why not? 10) Does sound move faster through solids liquids, or gases? Why? 9) Which sounds have more energy? Soft or loud? 12) How are electromagnetic waves different from sound waves? 11) Are there sounds in space? Why or why not? 13) Which electromagnetic waves can we see? 14) Which electromagnetic waves can be dangerous? 16) What are some examples of things that are transparent?Opaque? Translucent? 15) What allows you to see most objects? 19) Why does an object appear black? 17) What is white light? 18) If an object appears green, the object is absorbing all wavelengths except which one? 20) When does light refract? 21) What does a prism do to light?
