4. What is the y-intercept for your line of best fit? __ a. Write a sentence for what the y-intercept means. b. Does this answer make sense at the particle level based the definition of mass? Explain.

What universe model predicts that the universe will continue to expand indefinitely, and then it will fade into darkness? open universe model closed universe model singular universe model double universe model

6. State two ways in which the magnetic force of an electromagnet can be increased so it can attract a large amount of paper clips.

What fundamental force is responsible for an object's weight? Enter the answer square

Which subatomic particle has no charge? Proton Photon Neutron Electron

For following statements, select the state of matter (solid, liquid, gas or plasma) that it best describes. It has a definite volume and a definite shape. square It exists only at very high temperatures. square It flows and forms a flat or slightly curved upper surface when acted upon by gravity. square C

5 Acceptable error is determined by the typeyouranswer in which the measurement is made. Fillin the Blank 1 point Every measurement contains some degree of type your answer. 6 Fillin the Blank 1 point Ameasure that is Independent of who is doing the measuring is known as a(n) typeyouranswer measure

Which particle has the smallest mass? helium nucleus electron neutron proton

What is the purpose of scientific notation? To make numbers look more complex To simplify calculations To express very large or small numbers more efficiently To convert decimals to fractions

5. Which two elements are shown fusing in the Nuclear Fusion diagram? Hydrogen and Helium Helium and Oxygen Deuterium and Tritium Carbon and Nitrogen

Hot Questions

$\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.