1. Which of the following was Archimede's not responsible for? the ship shaker the log mover Archimede's screw the composition of the king's crown
The structure,properties, and transformations of matter can best be explained by which of the following?
6 The mass of an electron in grams is written with a decimal point followed by 27 zeros and a 9. In scientific notation, this would be written as A 9times 10^27 B 9times 10^-27 C 9times 10^28 D 9times 10^-28
On average, a granny smith apple has a density of 0.930g/cm^3 Let's say you have a granny smith apple that weighs 345 grams Assuming it is of average density, what would be its volume in mL? Round to the correct number of significant figures. square
Which tool would you use to measure the mass of the rock? triple beam balance ruler graduated cylinder thermometer
What are some properties of your pencil, a sheet of paper or a metal fork? List properties of each. Your answer
21 Synthesize Describe how the properties of sound waves change as they spread out in a spherical pattern.
Which action best describes the Doppler effect? The absorption and emission of light and other radiation by matter The apparent change in frequency of waves due to the motion of a source The rate of vibrations producing it causes the height or depth of sound The measure of a star's true brightness and total energy emitted in space
2. How do the properties of liquids make the displacement method of measuring volume possible?
Multiple Choice 1 point A man on an airplane is walking toward the back of the airplane at 7m/s The plane is flying West at 245m/s What is the speed and direction of the man relative to the ground? 238m/s, East 238m/s, West 252m/s East 252m/s West
$\square $ Answer Bank KE: 1000.0 J PE: 3000.0 J KE: 0J $PE:4000.0J$ KE: 2000.0 J PE: 2000.0 J KE: 4000.0 J PE: 0J
Learning Log: How do you think you get something to have more kinetic energy?
If a UV light unit has four lamps in it, and each lamp is 7-watt, it is known as a __ 7-watt unit 28-watt unit 11-watt unit 3-watt unit
10. What is the mass of a meteorite that is traveling towards Earth at $1,760m/s$ with a momentum of $33,400kgm/s$
Where is the energy coming from in the lab (where does it start)? A Potential energy in the Cheeto B Potential energy in the water C Kinetic energy inside the water D Kinetic energy in the Cheeto
What should happen to the temperature of the water? A It stays the same B It goes down C It goes up
9. Your local weather report announces that the barometric pressure is 30.44 inHg. Convert this pressure to psi, atm torr, and Pa.
Express the temperature, 275.18 K in degrees Celsius. $548.33^{\circ }C$ $274.17^{\circ }C$ $2.03^{\circ }C$ $120.88^{\circ }C$ $22.78^{\circ }C$
Hubble's Law has led physicists and astronomers to the hypothesis that the universe is expanding. True False
Newton determined that the force of gravity on an object is proportional to its mass causing its mass to be canceled out (Newton's second law) and resulting in a constant acceleration. If the laws of physics are universal, then Newton should be able to apply his discoveries about gravity on Earth to the motion of the planets in our Solar System. Newton's third law says that for every force there is an equal reaction force in the opposite direction. What does this imply about the force of gravity associated with a person standing on the Earth? Choose one: A. The force of gravity on the person cancels out to zero. B. The Earth's gravity pulls downward on the person but also pushes upward on them. C. The Earth's gravity pulls downward on the person, and the person's gravity pulls upward on the Earth. D. There is twice as much gravitational force on the person than there would be if it weren't for Newton's third law.
