A scientific representation used to explain or predict phenomena, such as the motion of planets or gravity's effect. square A change in an object's velocity (speed o direction) caused by forces acting on it. 1 point

What does temperature measure? the amount of heat the substance has the amount of energy the substance has the change in heat of the particles of a substance the average speed of the particles of a substance

19. What did JJ Thomson add to the model of the atom? a. The Electron Levels b. The Electron Cloud c. The Nucleus d. The Electron

Which type of system allows matter and energy to enter or exit the system? isolated closed open mechanical

Nisha is moving to a new apartment, so she is packing up cardboard boxes and sliding the full boxes across the floor. Use Newton's first and second laws to explain why she finds that the heavy boxes are harder to get moving than the lighter boxes. $\square $

5. Which of these best describes a magnetic field? A. a measure of the length of a magnet B. the force that pushes two magnets away from each other C. an invisible region that surrounds the north pole of a magnet D. a region around a magnet in which magnetic forces can affect magnetic objects

How will high tides differ from their average values when the Moon is in its new phase? A) They will be higher than average. B) They will be lower than average. C) They will not differ from average values significantly. D) There are no high tides when the Moon is new.

Which of the following accurately defines physics? The study of living organisms and their vital processes The study of the properties and nature of matter and energy The study of celestial objects, space and the universe as a whole The study of the features of the earth and its atmosphere

Who wrote and published Mathematical Principles of Natural Philosophy, also known as Principia, which contained the three laws of motion? Albert Einstein Benjamin Franklin Isaac Newton Galileo Galilei

When experiencing a fall or a collision, what would the primary objective be? to maximize the force experienced to decrease the time of the fall or collision to minimize the force experienced

What role did gravity play in the formation of the Solar System? It caused the solar nebula to expand It pulled particles together to form larger bodies It only affected the Sun It prevented planets from forming