3. Using the concept of particle motion, explain why a balloon expands when heated. Be sure to include how temperature affects the particles and their interaction with the balloon's walls.
Give two examples where refraction is useful in technology or nature.
9. Driver D had a speed between Driver A and Driver C Write a possible speed for Driver D.
2. How do the properties of liquids make the displacement method of measuring volume possible?
Part 2 - Refraction 4. Multiple Choice: What causes light to bend when it moves from air into water? a. Change in light color b. Change in light speed c. Light bouncing off the water's surface d. Increase in brightness
10. Early in the book (page 55), one of the science lessons the children hear explains that light itself is invisible and lacks color, though it seems to be visible because It illuminates the things that we do see The title of the book is obviously drawn from this passage. Why is this the title of the book? What are all of the different kinds of "light" in the book which cannot be seen?
If there are more ELECTRONS than protons the atom is... __ neutral negative
What is matter? Something that can be studied Something that has mass and takes up space Something that has force Something that has energy
5.A major league pitcher can throw ' a ball at a speed of 40.0m/s . Since the mound is 18.4m away from home plate, how long does the hitter have to react? Type a response
Select the group that consists entirely of matter. Cake, sunshine, thoughts Emotions, time, air Light, rocks, sound Potatoes, trees, tables
Fire the catapult at the lowest cup position What is the distance achieved? About 635 About 357
If Jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, what is being done? compression work radiation energy creation
Which word or phrase best describes entropy? disorder order kinetic energy force
What are most semiconductors made from? aluminum copper iron silicon
At which temperature does all molecular motion stop? OR $0^{\circ }C$ OK $0^{\circ }F$
Which statement about the volume and pressure of a gas is the most accurate? Volume of a gas is directly proportional to pressure of that gas in any container. Volume of a gas is inversely proportional to pressure of that gas in any container. Volume of a gas is always greater than pressure of that gas in any container. Volume of a gas is equal to pressure of that gas in any container.
CER: Make a claim about which type of material (dark or light)increases in temperature more when exposed to light energy Use evidence and scientific reasoning from class to support your answer. Your answer
In a transverse wave the wavelength can be measured as the distance between two adjacent compressions. TRUE FALSE
The slope of a linear velocity vs time graph tells us the __ of the object. displacement velocity speed acceleration
What is the first nucleus of an atom shown as? a fuzzy cloud a mass of protons and neutrons a solid mass surrounded by electrons a mass of protons
