Refraction results from changes in light's speed. all of the above incident angles. frequency.

Newton's third law is also known as the law of __ conservation coexistence force inertia

You are-tonsidering whether to buy a house for $\$ 80,000$ or another identical house located near high-voltage electric power lines, for $\$ 70,000$ Assume that it has been established that living near high-voltage lines increases the risk of cancer due to electromagnetic fields (EMFs). True or False: If you choose the $\$ 70,000$ house, the radiation from EMFs is not an externality. True X False

Question 1 Light travels faster in: 1. warm air 2. cool air 3. a vacuum. Question 2 When white light goes from air into water,the color that refracts the most is: 1. red 2. orange 3. green 4. violet 5. all refract the same amount. Explain.

What is the maximum number of electrons that the $7^{th}$ energy level can accomodate? 8 32 49 98

A piece of chocolate melts in your mouth This is an example of heat conduction. heat convection. heat radiation. thermal expansion. none of the above.

Question 4 Which of the following objects would require the use of a small-scale model? An atom The planet Saturn The highway system in Florida The path of an ocean current

Of an initial amount of 1000 g of lead-210, how much will remain in 160 years?Lead-210 decays at a rate of $3.15\% /yr$ $\square $ g (Round to one decimal place as needed.)

Which symbol represents a gamma ray? A. $\alpha $ B. $\gamma $ C. $\beta ^{-}$ D. $\beta ^{+}$

Select the correct answer. Which of Newton's laws states that "every action has an equal and opposite reaction"? A. first B. third C. second D. fourth

Essay: In your own words, explain why a simple pendulum's period does not depend on the mass on the end of the pendulum. $\square $