Which statement best describes an atom? protons and neutrons grouped in a specific pattern protons and electrons spread around randomly a group of protons and neutrons that are surrounded by electrons a ball of electrons and neutrons surrounded by protons
The longest wavelength within the visible spectrum is _______ light. A. orange B. blue C. red D. violet I'm confuse between C and D help
The temperature and brightness of stars are shown on the __________. Bright-Temp Graph H-R Diagram Star Model Luminosity Grid
The study of the Earth's magnetic field is known as A. isochronism B. paleomagnetism C. magnetism D. topography
___________ of electromagnetic radiation is visible to the human eye. All A narrow portion The white color The dark colo
When magnesium (Mg2+) and fluorine (F1-) combine in an ionic bond, the resulting formula will be A) Mg2F. B) Mg2F2. C) MgF. D) MgF2.
A negatively charged rod is placed near two neutral metal spheres, as shown below. Which statements describe the charging method shown? Check all that apply.
Which is an example of the kinetic-molecular theory not holding true for a gas? The average kinetic energy of particles depends only on the temperature. The particles in a gas travel in straight lines in a continuous, random motion. The attraction between particles causes a gas to condense at low temperatures. The particles in a gas make up a small portion of the total volume of the gas.
One example of an energy-efficient device is a(n) a. fluorescent light bulb. b. drafty window. c. incandescent light bulb. d. gasoline-powered car.
How far from the bottom of the chute does the ball land? your answer for the distance the ball travels from the end of the chute should contain r?
Polar climates normally get ____________ amounts of precipitation. a. high c. medium to high b. little d. little to medium
A jet plane is speeding down the runway during takeoff. air resistance is not negligible, friction is negligible.
Organisms that live on or burrow into the ocean floor are a. plankton. b. benthos. c. nekton. d. pelagic
The measure of an object's mass and velocity is called __________. a. gravity b. acceleration c. inertia d. momentum
What is a statement that summarizes a pattern found in nature? A. a scientific law B. a fact C. a scientific theory D. a hypothesis
How are the types of energy in the electromagnetic spectrum defined? (Points : 3) by their atomic structure by their color by their amplitude by their wavelength
HIV is thought have originated by __________. a. apes passing the disease to hunters b. early explorers traveling in jungles c. people drinking contaminated water d. mutations in the gene pool
9. Which one of the following statements accurately describes a characteristic of adolescence? A. Serious teenage rebellion is common to most adolescents. B. Teenage boys tend to be more open about their feelings than teenage girls are. C. Adolescents tend to break ties with their families. D. Most adolescents like to spend some time alone.
Which statement is true regarding flexibility? A. joint's range of motion cannot be maintained with age. b.A joint's range of motion will be lost if the joint is not used regularly. c.Flexibility decreases with age because muscle strength increases. d.Flexibility decreases at a rate predetermined at birth.
What immediate action should you take when operating a boat if you hear the fog signal of another boat you cannot see?
Which of the following types of boundaries is most likely to result in a subduction zone? a. divergent b. convergent c. transform d. all of the above
Which of the following determine an object's velocity? A. speed and direction B. direction and acceleration C. speed and mass D. speed, direction, and acceleration
Who described atoms as small spheres that could not be divided into anything smaller? bohr dalton rutherford thomson