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Chapter 9 OYOT
OYOT – On Your Own Time
(please explain answers with DETAIL in complete rephrased sentences!!)
9.1 How does the movement of particles relate to energy, and how does the number of particles within a substance affect its thermal energy?
9.2 Why is chemical energy a form of potential energy?
9.3 Describe 3 different examples that you personally used converted energy this week.
9.4 How are the laws of conservation of mass and conservation of energy similar? How are they different?
9.5 Choose 3 energy resources from the list on page 237 that you think are the most likely to be the major fuel sources for your future 20 years from now. Why do you think these will be the major energy resources, and what constraints are there on using them?
Chapter 7 OYOT
7.1 What two factors determine the amount of lift achieved by airplanes?
7.2 Two friends both weigh 120 lbs each. One is on stilts; the other is lying straight down.
Are they exerting equal pressure on their bodies? Why or why not?
7.3 How do you think a vacuum cleaner works?
(hint: answer should include what is happening with pressure)
7.4 Explain how a submarine works. Use a picture to help your explanation.
7.5 If you had two boats, and one was filled with floaty rubber duckies and the other empty, which would float higher? Why?
7.6 Draw a Frisbee and use Bernoulli’s principle to explain how it works.
7.7 What happens when you take two sheets of paper and hold them vertically an inch apart and blow between them?
Explain why you think this happens.
OYOT Chapter 5 Q’s
These Q’s are due on the day of our chapter 5 test, Feb. 16th
5.1-Explain how motion and a reference point are related.
5.2-How is it possible to accelerate while traveling at a constant speed?
5.3-What are the three measurements of motion?
5.4-What is force?
5.5-What are 2 ways to increase friction?
5.6-Explain a situation where you would want to reduce friction as much as possible. How would you go about reducing friction in that activity?
OYOT Chapter 6 Q's
6.1 Skydivers stop accelerating once they reach ~54 m/s (122mph)
Explain why this happens using the following terms: terminal velocity, momentum, mass, air resistance, and gravity
6.2 Why does friction make Newton’s first law difficult to observe?
6.3 If you are standing still on a skateboard with a basketball, and you throw a chest-pass to your friend, what will happen to you? Would the same thing happen if you threw a tennis ball? How does this demonstrate Newton’s 2nd and 3rd Laws?
6.4 What is the “conservation of momentum”?
6.5 If a golf ball and a bowling ball are traveling at the same velocity from the same reference point, will they both stop at the same point? Explain your answer using the terms: inertia, momentum, mass
6.6 Why would the motion of a projectile be different if thrown on the moon?
6.7 What are the two motions involved in orbit?